Domestication of many organisms, such as honeybees and livestock causes a decrease in the genetic diversity of the organisms.
Genetic diversity refers to the range of genetically different individuals that are present in the same species. Domestication is the process by which the wild animals as well as plants are adapted to the human environment.
Domestication of livestock and honeybees is often done for economic reasons. An unintended consequence of the process of domestication is the decrease in the genetic diversity of the species. This decreases leads to a decrease in the variation which reduces the survival advantage of these species.
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Your cells need sugar to create energy and survive and they get sugar from the food you eat. Once your food is digested, sugar molecules travel through the bloodstream and then will be transported into your cells. Diffusion only allows sugar to be transported into a cell until it reaches equilibrium so how can your cell bring in even more sugar after it has reached an equilibrium
A cell uses a variety of procedures to turn carbohydrates into energy. The initial and most fundamental one is known as glycolysis. Hexose sugars are used to fuel it. This lengthy procedure only expels a modest quantity of energy.
The energy needed by your body to function comes from glucose. The body receives glucose from the consumption of carbs. You get four calories of energy from every gramme of carbohydrates you eat. When you consume carbs, your digestive system uses specialised enzymes to convert them into glucose, a type of simple sugar.
Function of sugar in the body The body uses carbohydrates as fuel to produce energy.
Foods high in carbs are converted by the body into glucose, which can then travel through the bloodstream. For the brain, central nervous system, and red blood cells to operate properly, some glucose is required.
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How can matter be arranged, and how do we model the arrangement of matter?
Answer:
Matter can be arranged in a variety of ways, including as a solid, liquid, or gas.
We can model the arrangement of matter using the kinetic molecular theory
Explanation:
Matter can be arranged in a variety of ways, including as a solid, liquid, or gas. In a solid, the particles that make up the matter are packed closely together and are not able to move around freely.
In a liquid, the particles are more spread out and are able to move around a bit more, but are still close together. In a gas, the particles are very spread out and are able to move around freely.
We can model the arrangement of matter using the kinetic molecular theory, which states that the particles in a substance are in constant motion and that the properties of the substance depend on the average kinetic energy of the particles.
This theory helps us understand how matter behaves and how it changes between different states.
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Achondroplasia (dwarfism) is caused by a dominant gene. A woman and a man both with dwarfism marry. If homozygous achondroplasia results in the death of embryos, then the expected ratio of normal to affected children will be
The expected ratio of normal to affected children will depend on the genetic background of the parents. If both parents have achondroplasia, which is a dominant gene, then each of their children has a 50% chance of inheriting the condition.
In this case, the expected ratio of normal to affected children would be 1:1. However, if one parent is heterozygous (carries one copy of the gene) and the other is homozygous (carries two copies of the gene), then the expected ratio of normal to affected children would be 3:1.
This is because the heterozygous parent has a 50% chance of passing on the achondroplasia gene and the homozygous parent has a 100% chance of passing on the achondroplasia gene.
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describe at the molecular level how cells extract energy frm starches proteins and lipids by the process of aerobic respiration
A scientist is observing an invertebrate animal that she collected in shallow salt water. The animal has a hollow central cavity and a gut.Which animal is the scientist most likely observing
Answer: a cnidarian, because it has a gut a cnidarian, because it was collected in shallow salt water a sponge, because it has tissue layers a sponge, because it is an invertebrate.
how do the locations where photosynthesis occurs differ in prokaryotes and eukaryotes
Photosynthesis takes place on the folds in prokaryotes and in specialised organelles in eukaryotes. Prokaryotic cells don't have specific organelles or a remote nucleus.
What is photosynthesis?
Plants absorb water (H2O) and carbon dioxide (CO2) from the soil and atmosphere during photosynthesis. Water is oxidised, which means it loses electrons, while carbon dioxide is reduced, which means it receives electrons, inside the plant cell. Water is converted into oxygen and carbon dioxide into glucose as a result. After storing energy within the glucose molecules, the plant releases the oxygen back into the atmosphere.
Chloroplasts, which are tiny organelles found inside plant cells, are there to store solar energy. Chlorophyll, a light-absorbing pigment found in the thylakoid membranes of the chloroplast, is what gives plants their green hue.
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Vestigial traits and neutral changes in DNA sequences are good examples of _____. Vestigial traits and neutral changes in DNA sequences are good examples of _____. acclimation
Vestigial traits and neutral changes in DNA sequences are good examples of non-adaptive traits .
Structures that don't have any obvious feature and appear like residual components from a beyond ancestor are known as vestigial systems. Examples of vestigial systems encompass the human appendix, the pelvic bone of a snake, and the wings of flightless birds. Vestigiality is the retention, at some point of the manner of evolution, of genetically decided systems or attributes which have misplaced a few or all the ancestral feature in a given species. Assessment of the vestigiality should usually rely upon assessment with homologous functions in associated species.
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Tropical savannas in East Africa have herds of ____________________ and ____________________ hoofed animals.
Tropical savannas in East Africa have herds of zebra and wildebeest hoofed animals.
The zebra is a member of the equid family and is one of the most recognizable animals in the world. Its black and white stripes make it easily distinguishable from other animals, and it is found in a variety of ecosystems across Africa. Zebras are very social animals, living in large herds of up to several hundred individuals. They feed on grass and other vegetation, and are mostly active in the early morning and late afternoon.
The wildebeest is also a grazing mammal, but from the bovidae family. It is larger than the zebra and has a distinctive curved horn on its head. Wildebeest are highly social animals, often traveling in large herds of up to several hundred individuals. They are also mainly active during the early morning and late afternoon, and feed on grass and other vegetation.
The relationship between zebra and wildebeest is one of mutual benefit. The zebra’s stripes help camouflage it from predators, while the wildebeest’s curved horns are used to defend itself and the herd. Together, they can also provide better protection against predators by forming a large herd. In addition, the two species of hoofed animals help each other to find food and water, and they even graze in the same areas.
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Explain the application of biology epecially the role of microbiology and biotechnology for the growing public and global health need
Biology is a field of study that examines living things and their functions. Botany, Biotechnology, genetic, marine science, medical, Microbiology, cell genetics are just a few of the many disciplines that make up biology.
Applications of Microbiology:
The advancement of microbial agents for bioremediation of plant and animal pests, changes made of both plant and animal pathogens for lowered virulence, and development of new industrial equipment are just a few of the advances that microbial biotechnology, made possible by genome studies, will bring about. Other advances include better vaccines and better disease-diagnosis tools.
Applications of biotechnology:
Therapeutics, diagnostics, GM food, processed food, biotransformation, sewage disposal, and energy generation are only a few examples of the uses of biotechnology. The creation of biofuels is one of the most significant biotechnology applications. This alternate source of energy is said to be good for the environment. From waste materials, biotechnology can produce biofuels.
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What are 4 characteristics of a mollusk?
Four important characteristics of a mollusk are:
Mollusk are found in marine and freshwater habitats.Mollusk have organ system level of organization. Body is divided into head, muscular foot and mantle.The head of mollusk have of tentacles and compound eyes.The phylum Mollusca has many distinctive features and special characteristics. which include a mantle that has mantle cavity, visceral mass, foot, and radula. Mollusks also includes various classes like Gastropod, Bivalvia, Cephalopoda, and Polyplacophora .
Gastropods have a special characteristics that includes spirally-coiled external shell while others mollusks usually have a flattened shell, and many of them doesn't possess any shell as outer structure.
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If the resilience of a damaged ecosystem is low enough, the degraded area may not be restored by secondary succession. When this happens, the damaged ecosystem has reached ____.
A tipping point is the point of no return, when the damage to an ecosystem has been so great that it can no longer recover through natural processes, such as secondary succession.
The tipping point is typically reached when the resilience of the ecosystem has been severely weakened, meaning that the system is unable to respond and recover to disturbances and disturbances can no longer be easily reversed. This can be due to a number of factors, such as climate change, pollution, overuse of resources, deforestation, and so on.
When the tipping point is reached, the ecosystem may never recover in its original state and may be permanently damaged or even destroyed.
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A couple has a daughter with Turner syndrome, a condition in which only a single copy of the X chromosome is present. This results from nondisjunction, the failure of the X chromosome to segregate properly during meiosis. During which meiotic division, and in which parent, could nondisjunction have occurred to produce a child with this condition
Turner syndrome (XO) in women have to give up end result from non-disjunction for the duration of Meiosis II.
Meiosis II withinside the mother, wherein she may be capable of produce 50% eggs having 2X chromosomes at the same time as the rest 50% will now now not have any X chromosome. When the latter type (O) of eggs fuse with the X chromosome containing sperms paperwork the father, it will be a XO genotype female with Turners syndrome Another possibility is non-disjunction for the duration of Meiosis II withinside the father. In meiosis II, the sister chromatids separate, making haploid cells with non-duplicated chromosomes. There are divisions in meiosis; the primary department is meiosis I: the quantity of cells is doubled however the quantity of chromosomes is not. This consequences in half of of as many chromosomes in line with cell. The 2d department is meiosis II: this department is like mitosis; the quantity of chromosomes does not get reduced.
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Select the choice that best completes the following sentence: _______ reproduction requires one parent, while _______ reproduction requires two parents.
A. sexual , asexual
B. asexual , sexual
C. single , double
D. animal, bacterial
Asexual reproduction requires one parent, while sexual reproduction requires two
What is reproduction?The biological process by which new individual organisms - "offspring" - are formed from their "parent" or parents is known as reproduction. Each individual organism exists as a result of reproduction, which is a fundamental aspect of all known life. Asexual and sexual reproduction are the two types of reproduction.
Asexual reproduction is a type of reproduction in which a single parent produces a new progeny. The newly generated individuals are genetically and physically identical to one another, i.e., they are clones of their parents.
On the other hand, sexual reproduction is the process of creating new organisms by combining the genetic information of two individuals of different sexes. The genetic information in most animals is carried on chromosomes in the nucleus of reproductive cells called gametes, which unite to form a diploid zygote.
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Who are the most prone of premarital sex?
Young people, particularly those in their late teens and early twenties, are more likely to engage in premarital sex due to various factors such as cultural and religious beliefs, education, and access to contraception.
It is difficult to make generalizations about who is most prone to engage in premarital sex, as sexual behavior can be influenced by a variety of factors such as cultural and religious beliefs, education, and access to contraception.
However, studies have shown that young people, particularly those in their late teens and early twenties, are more likely to engage in premarital sex than older individuals. Additionally, those who have a higher level of education, greater access to contraception, and more liberal attitudes toward sex may be more likely to engage in premarital sex.
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Why is the e-waste harmful?
Answer:
the components used to make devices such as laptops, cell phones, and televisions, contain metals and chemicals known to harm human health
Explanation:
19. What do you expect when the cell wall of a plant cell is removed by a certain way, then put in distilled water? a)The cell takes a longer time to swell. b)The proteins that are present in the cytoplasm exit through the cell membrane. c) The cell shrinks. d) The cell bursts. why is the correct answer (d)
The cell bursts when the cell wall of a plant cell is removed by a certain way, then put in distilled water because the cell wall is removed, the cell would get wet, which would cause it to burst..
How do plant cells react to exposure to distilled water?Putting a plant cell in distilled water causes it to become turgid. This is due to a process called osmosis, which causes the plant cell's cytoplasm to swell up and firmly press up against the cell wall as it absorbs water from the hypotonic distilled water.
Cell walls stop excessive endosmosis from happening when water enters the cell, which also prevents plant cells from bursting. If the cell wall were to be broken, water would enter the space and the cell would eventually burst.
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A DNA polynucleotide is composed of a chain ot DNA nucleotides. Which component of a nucleotide can be removed without breaking the chain
DNA polynucleotides are composed of a chain of DNA nucleotides, which are made up of three components: a phosphate group, a deoxyribose sugar group, and a nitrogenous base. The nitrogenous base is the component that can be removed without breaking the chain.
The nitrogenous base can be one of four different molecules: adenine (A), thymine (T), guanine (G), or cytosine (C). These molecules are the “letters” of the DNA alphabet, and they are the parts that determine the genetic code. When a nitrogenous base is removed, the phosphate group and deoxyribose sugar group remain linked, and the DNA molecule remains intact.
However, the genetic code of the DNA is disrupted because the sequence of nitrogenous bases is what determines the code. Therefore, removing a nitrogenous base from a DNA polynucleotide without breaking the chain does not necessarily mean that a functioning gene will be left behind.
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What is a deletion mutation?
In deletion DNA sequence changed by removing at least one nucleotide in a gene.
Deletion mutation generally takes place when part of a DNA molecule is not copied during DNA replication. Thus the uncopied part remains as small as a single nucleotide or as an entire chromosome.
In general ,Deletion mutations can be responsible for causing large number of genetic diseases, that includes disease like cystic fibrosis and the cat cry syndrome, that makes child cry with the cat sound or cat meowing . Hence, deletion mutation can occurs when a piece of DNA is removed from the sequence.
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Plantlike photosynthesis that releases oxygen (O2) occurs in _____. Cyanobacteria actinomycetes chemoautotrophic bacteria chlamydias archaea
Plantlike photosynthesis that releases oxygen (O2) occurs in Cyanobacteria.
Cyanobacteria is a type of a gram-negative bacteria that lives in any body of water which also synthesize its energy by the means of photosynthesis; using the power of sunlight to synthesize its food from carbon dioxide and water, and converting the light energy into a chemical energy with a byproduct of oxygen. The large existence of cyanobacteria may contaminate the water, polluting the water with the toxins it produces called cyanotoxins, and are harmful to people and animals.
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How does Mendelian genetics apply to humans?
Mendelian inheritance is the term used to describe how qualities that are regulated by a single gene with two alleles, one of which may be dominant to the other, are passed down from parent to child. Even though just a few human features are governed by a single gene with two alleles, they provide a solid foundation for learning about human heredity.
He came to the conclusion that each parent transmits a pair of distinct genes to their offspring. Mendel studied how parental genes diverged and whether they manifested in the offspring as dominant or recessive traits. He was familiar with the mathematical traditions that were passed down from one generation to the next. Mendel's approach created a genetics template that is still employed today for gene discovery and comprehending the genetic characteristics of inheritance.
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The Grand Canyon has much more than pretty scenery. It contains an amazing diversity of rock formations with an abundance of fossils hidden within. These fossils provide clues about past environments. The sedimentary rocks exposed throughout the canyon are rich in fossils, including fossils of these marine (ocean) brachiopod shells.
QUESTION: How does fossil evidence help you explain how the Grand Canyon formed? Write your answer
The most frequent fossils are small sea animals like gastropods, brachiopods, coral, and crinoids. When mixed with sandstone, this suggests that the region was a warmer, shallow sea at the time these sediments were created. The hyphae of rocks is a result of flooding.
What are bryozoans?Little aquatic invertebrates called bryozoans dwell in colonies. Colonies of many species form exterior protective structures called exoskeletons that mimic coral prosthetic limbs. Most colonies are anchored to a structure, such as a rock or sunken branch.
How do fossils work?Any surviving indication of a once-living thing from a previous geological age is known as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, things preserved in glass, locks, fossil pine, and DNA traces. The fossil record is a collection of all fossils.
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explain how the relationship between light and pigment production might serve as a protective mechanism
The relationship between light and pigment production can serve as a protective mechanism for plants and other organisms. Pigments absorb light energy and convert it into chemical energy, which is then used to drive metabolic processes such as photosynthesis.
This allows plants to absorb light and use it to create energy. Pigment production can also help protect organisms from dangerous ultraviolet radiation. Pigments absorb ultraviolet light and prevent it from reaching the cells beneath. This can help protect them from damage caused by exposure to UV radiation.
In addition, the pigments can act as natural sunscreen, reducing the amount of harmful radiation that reaches the organism’s skin. Pigments can also provide camouflage and protection from predators. By changing the colour of their skin, organisms can blend into their environment, making them less visible to predators. Overall, the relationship between light and pigment production can provide an effective form of protection for plants and other organisms.
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Blocks of genetic material that do not recombine and are passed on for generations are called
a) phenotypes b) genotypes c) karyotypes d) haplotypes
Blocks of genetic material that do not recombine and are passed on for generations are called haplotypes.
A haplotype is a set of DNA variants along a single chromosome that tend to be inherited together. Because they are close together on the chromosome and recombination between these variants is rare, they are usually inherited together.
The haplotypes represent sequences along the chromosome that are either conserved intact or separated over time by recombination. This basic concept has led to the development of methods to extract information about recombination to help researchers identify disease-causing genes and loci.
In the genome, alleles of closely spaced variants on the same chromosome tend to occur together more frequently than would be expected at random. These allelic blocks are called haplotypes.
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Which type of relationship is formed when a Julia butterfly drinks a spectacled caiman's tears?
commensal
mutualistic
parasitic
The relationship formed when a Julia butterfly drinks the tears of a spectacled caiman is known as mutualism.
Mutualism is a type of symbiotic relationship in which both organisms benefit from the association happening in-between.
In this case, the Julia butterfly obtains sodium and other minerals that are essential for its survival and reproduction, which are not readily available in the nectar of flowers that it typically feeds on. The spectacled caiman benefits from the presence of the butterflies, as they help to remove excess salt from the caiman's eyes and keep them clean.
This mutualism relationship is not that common and is observed in only a few species of butterflies and reptiles and is considered a rare type of mutualism.
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How did Mendel's pea plants help us understand genetics?
Mendel's pea plants gave us a clear and straightforward framework for analyzing the inheritance of traits, which improved our understanding of genetics. Pea plants are a good choice for Mendel's research because they can easily self- or cross-fertilize and have a short generation time.
Mendel exploited the distinct and readily observable traits of pea plants in his tests, including seed color, seed shape, and bloom color.
According to Mendel's research, traits are influenced by specific "factors" that are passed from parent to child. He discovered that the presence of two alleles, one inherited from each parent, determines the inheritance of each feature and that one allele can be dominant over the other.
He also discovered that different characteristics are inherited independently of one another and that the probability of an offspring inheriting a specific allele from a parent is 50%. These discoveries laid the foundation for the field of genetics and provided a framework for understanding how traits are passed down from one generation to the next.
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Which contains more potential energy, a large, complex molecule like a protein, or the smaller amino acid subunits of which it is composed
A large, complex molecule such as a protein contains more potential energy than the smaller amino acid subunits of which it is composed. This is because a protein is a polymer, meaning it is composed of multiple molecules linked together in specific ways.
When these molecules are linked together, the bonds between them store energy. This energy is refers to potential energy. When compared to the smaller amino acid subunits, the potential energy stored in the protein is much greater. This is due to the fact that the potential energy stored in a protein is the sum of the potential energy of all the individual amino acids.
Additionally, the bonds that join the amino acids together in a protein are much stronger than the bonds that link the amino acids in the smaller subunits. Therefore, proteins contain more potential energy than the smaller amino acid subunits of which they are composed.
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Duchenne muscular dystrophy (DMD) is a recessive, sex-linked disorder carried on the X chromosome. If a woman who is a carrier of DMD and a man without the disorder have children, which outcome is possible?
a. All of their sons and half of their daughters could have DMD.
b. Half of their sons and half of their daughters could have DMD.
c.Half of their sons and none of their daughters could have DMD.
d. None of their sons and half of their daughters could have DMD.
Answer:
C. Half of their sons and none of their daughters could have DMD.
Explanation:
DMD is a recessive disorder carried on the X chromosome and it is sex-linked. This means that the gene for DMD is located on the X chromosome and it affects mostly males.
If a woman is a carrier of DMD, it means that she has one copy of the mutated gene and one normal copy, and she does not show any symptoms of the disorder.
If a man without the disorder has children with this carrier woman, half of their sons will inherit the mutated X chromosome from the mother. Therefore, they will have the disorder and half of their sons could have DMD.
Since, Females have two X chromosomes, and therefore, if a daughter inherits the mutated X chromosome from the mother, the second X chromosome will be normal which will help in compensating the effects of the mutant one, hence they will be carrier of the disorder but will not show any symptoms. So none of their daughters could have DMD.
So, the outcome is: C. Half of their sons and none of their daughters could have DMD.
Answer:D
Explanation:
I think it is D because only the mother had it and not the father. I don't think the father could get DMD through sex either. So I think that none of their sons and half the daughters could have DMD because they inherited it from the mother.
Which of the following staining procedures is matched with the principal use for that stain?
A negative stain used to differentiate cell wall components
B flagella stain used to distinguish dormant structures formed during adverse environmental conditions
C endospore stain to visualize flagella
D acid-fast stain for microbes with waxy cell walls
The primary use of endospore stain is in conjunction with the analysis of flagella staining procedures.
How could a bacteria be rendered in three dimensions?An instrument that may be used to investigate cells and other microscopic things is a micrometer. An object's image is magnified through at least single lens throughout the microscope. This lens distorts light so that an item looks bigger than it actually is.
Which are the three distinctive stains, exactly?Special Stains Masson Trichrome. The trichrome stain helps to reveal the collagenous matrix that acts as support in sections from different organs.
The elastic stain by Berkoff.
Apply reticulin to stain.
The Giemsa blotch.
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A similar screening test was developed and evaluated on a similar population, and found to have a sensitivity of 38%, a specificity of 97%, with 63% positive predictive value and 91% negative predictive value. Pick the correct interpretations of these results: (Pick all answers that are true - you will get partial credit for whatever you get correct)
Students who do not genuinely have anorexia are more likely to be ruled out by this screening test than those who do.
The screening test indicates that anorexic children have a 38% chance of testing positive while anorexic students have a 97% chance of testing negative.
Those who test positive for disease have a 63% likelihood of having it, whereas those who test negative have a 91% chance of being disease-free. An unjustified fear of being overweight and a skewed body image are characteristics of anorexia.
Attempts to keep a weight below average by fasting or excessive activity are symptoms. To get back to normal weight, medical intervention could be required.
College students face a lot of pressure to be social and presentable because they are frequently in the company of people their own age. Numerous children decide when, what, and how much to eat for the first time. The two most typical eating disorders are bulimia and anorexia. Usually, eating disorders start between the ages of 18 and 21. In college, between 10 and 20% of women and 4 to 10% of males struggle with eating disorders, and the prevalence is rising.
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I need someone to explain this