Answer:
sandy
Explanation:
How does recombination affect genetic variation in future generations?
Why do Earth’s crust remain the same size despite sea floor spreading?
A. Older rocks eventually disintegrate on the ocean floor.
B. As new rocks are formed along mid-ocean ridges, older rocks are pushed down deep into the Earth into ocean trenches.
C. Hot magma dissolves all the old rock near the eruption site.
D. None of these choices are correct.
Answer:
B. As new rocks are formed along mid-ocean ridges, older rocks are pushed down deep into the Earth into ocean trenches.
Why is the Earth not getting larger if the sea floor is slowly spreading?Mainly due to the Atlantic experiencing seabed expansion. The sea bottom is subducting, or moving underground, in the Pacific. This is how the Earth's tectonic plates and geological activities function. The top side of the mantle travels to the bottom at one end and to the top at the other, similar to a conveyor belt. This explains why there are volcanoes, why continents drift, and why our planet's surface is continually changing over the span of millions of years.
Therefore, the planet is not getting bigger because its surface is constantly recycling itself.
industrialisation and urbanisation cause environmental imbalance why
Answer:
Because industrialization and urbanization often advance in an uncontrolled or unorganized way in developing countries, they can have destructive effects on the environment, particularly on basic ecosystems, wildlife habitat, and global biodiversity.
Rudolph the Reindeer has a red nose (n), which is a recessive trait. Betsy the Reindeer has a black nose (N), which is a dominant trait, and she does not carry the recessive allele. Assume the rules of human genetics also apply to reindeer.
A. Either NN or Nn
B. Nn
C. NN
D. nn
Answer: black, black, black, red
Explanation:
If there is a dominant allele present, any recessive alleles are ignored and the reindeer displays the trait associated with the dominant allele.
Therefore A, B, and C have black noses because they have 1 or more dominant alleles
D has two recessive alleles so it displays the recessive trait.
Hope this helps.
Answer:
B. Nn
Explanation:
We know Betsy does not have recessive allele which means she is a homozygous dominant, NN. Rudolph has a red nose which is recessive trait, to get a recessive trait you need to be homozyogus recessive, nn.
Now, if you cross NN x nn (assuming you know how to do punnet squares), all the offsprings will be Nn (black nosed)
Hope its right!
define wetlands.please give me the answer
Answer:
Wetlands are areas where water covers the soil, or is
present either at or near the surface of the soil all year or
for varying periods of time during the year, including during
the growing season.
land consisting of marshes or swamps; saturated land.
Hello!
Wetlands can be defined as :
[tex]\fbox {Areas where water is present in the soil during all times of the year.}[/tex]
2. How are the amino acids formed from the codon in Mutation #2 different from those
formed from the original codon pattern?
The amino acids formed from the codon in the Mutation are different from those formed from the original codon pattern, not because after the mutation the sequencing is changed, giving rise to different codons.
What is a DNA mutation?Mutations are abnormal changes in the DNA of a gene. The building blocks of DNA are called bases. The sequence of these bases determines the gene and its function. Mutations involve changes in the arrangement of the bases that make up a gene.
How many amino acids make up a codon?Degenerate/Redundancy: There are four nitrogenous bases that make up DNA and RNA. They are arranged in triplets, forming codons. Thus, there are 64 different codons that correspond to the twenty amino acids that make up proteins. Therefore, more than one codon corresponds to the same amino acid.
With this information, we can conclude that the amino acids formed from the codon in the Mutation are different from those formed from the original codon pattern, not because after the mutation the sequencing is changed, giving rise to different codons.
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A seed was discovered and, when planted, grew to be a large flowering plant.
A seed was discovered and, when planted, grew to be a large flowering plant because it belongs to angiosperm family.
What is angiosperm?Angiosperms are plants that produce flowers and seeds in fruits. They are the largest and most diverse group within the kingdom Plantae having about 300,000 species. Angiosperms represent about 80 percent of all plants.
So we can conclude that a seed was discovered and, when planted, grew to be a large flowering plant because it belongs to angiosperm family.
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The seed belongs to a plant in the angiosperm group.
What are angiosperms?Angiosperms are seed-producing, flowering plants.
Angiosperms are different from gymnosperms in that gymnosperms produce seeds that are not enclosed.
Angiosperms produce seeds that are enclosed in fruits.
Both angiosperms and gymnosperms belong to a group of plants known as Spermatophyta.
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Lesson 2 Chromosomes and Mitosis
Lesson 2: True or False
Write true if the statement is true or false if the statement is false.
1. A chromatid is made of two identical chromosomes.
2. There may be thousands of genes on a single chromosome.
3. Prophase is the first phase of mitosis.
4. Female human cells have 23 pairs of homologous chromosomes.
5. Mitosis occurs in the following order: prophase - metaphase - telophase-anaphase.
6. The process in which the cell divides is called mitosis.
7. During mitosis, DNA exists as chromatin.
8. A gene contains the instructions to make a protein.
9. Chromosomes form during metaphase.
10. Mitosis is the phase of the eukaryotic cell cycle that occurs between DNA replication and the
second growth phase.
11. Sister chromatids are identical.
12. Chromatids separate during anaphase.
13. Chromosomes are coiled structures made of DNA and proteins.
14. Human cells have 64 chromosomes.
Answer:
1. true
2. true
3. true
4.false
5.true
6. true
7. false
8. true
9. false
10. false
11. true
12. true
13. true
14. false
Match the following.
1. The blending of two traits in a heterozygous individual
multiple alleles
2. Where more than two alternatives for a gene exist
incomplete dominance
Answer:
Multiple Alleles ---> 2.) Where more than two alternatives for a gene exist
Incomplete Dominance ---> 1.) The blending of two traits in a heterozygous individual
Ecosystems change when _______. a. living components of an ecosystem change b. nonliving components of an ecosystem change c. their stability is disrupted d. all of the above please select the best answer from the choices provided a b c d
Ecosystems change when all of the above components listed change ie, living components of an ecosystem, nonliving components of an ecosystem, or their stability is disrupted.
Hence correct option is D.
A community of creatures and their physical environment make up an ecosystem.Ecosystems can be terrestrial, aquatic, or marine and come in a variety of sizes. The term "biome" refers to broad classifications of terrestrial ecosystems. Ecosystems, the dynamic network of living and nonliving things in a place, change gradually over time. New plants and animals either thrive or suffer when they are introduced to a region. Sometimes thriving species suppress native species. The system as a whole starts to shift when this occurs.If the living components i.e., flora and fauna of the ecosystem change then there will be increase or decrease in food availability and either surge in predators or no predators at all. hence it will greatly affect the ecosystem.non living components such as temperature, water availability, natural calamities can also affect the ecosystem. it can lead to extinction or migration from one place while influx of immigration to another.if the stability of ecosystem is disrupted due to change in living and non living components then also the ecosystem will be affected.hence all of the above options are correct.
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In a mutualism
A one organism is helped and the other is harmed
B neither organism is helped
C one organism is helped and the other is not harmed
D both organisms are helped
Need this bad.
In a mutualism both organisms are helped. Therefore, option (D) is correct.
Mutualism benefits both creatures. The trade benefits both organisms. Food, shelter, protection, and other services are examples. The partnership helps both creatures survive, reproduce, and thrive. Nature relies on mutualistic ties for ecological balance and ecosystem function.
Mutualism may be seen in pollination, where plants give nectar to pollinators in exchange for pollen, and in animal digestive systems, where mutualistic microorganisms break down food and offer nutrients. Therefore, option (D) is correct.
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Why would it be easier for a doctor to tell that someone has a viral infection when the virus is in the
lytic cycle?
Answer:
Diagnosis of Bacterial and Viral Infections
But your doctor may be able to determine the cause by listening to your medical history and doing a physical exam. If necessary, they also can order a blood or urine test to help confirm a diagnosis, or a "culture test" of tissue to identify bacteria or viruses.
Help me with please
Explanation:
carbon and hydrogen .......
In this test, you will apply what you have learned in the unit. Please answer the
questions below. Submit this to your teacher when you are done.
1. The figure below shows the age distribution of the human population of an island
nation in the South Pacific.
Age
105
Age
65
Age
25
F
a. According to the figure, is this population more likely to grow or shrink in the
next 10 years? Explain your answer. (2 points)
Answer:
It should be more likely to grow as there is a steady increase as you go down the ages with no gaps or stops. As years pass the increase should be expected to keep steady.
What are the precautions of asthma
Asthma is basically a bronchial infection in which the bronchi actually swells and whenever, mucus gets deposit in bronchi it creates problem in breathing which leads to a asthmatic attack. It is considered as a universal chronic disease. As it lasts for a long span of time if not cured at early age. In modern science there is no medication discovered to cure it permanently. However, some drugs has been introduced which provide temporary relief.
Asthma can be cured by following these simple steps:-
1.Yoga and regular exercise :- Yoga and physical exercises helps a lot to overcome from breathing problems . Pranayams such as Anilom-Vilom and Kapaalbhati are considered as the best yoga exercises for asthmatic patient. About 30 to 45 min of daily yoga can bring a magical change.
2.Precaution's and Prevention's :-
• Keep yourself away from dusty places.
• Fried and spicy food should be avoided.
• Avoid cold places such as AC rooms.
• Don't eat foods creating mucus, such as curd, rice etc.
• Take light dinner about 2 to 2.5 hours before going to bed.
3.Have faith in yourself :- The last but the most important thing required to cure asthma is your faith in yourself. You must have faith and patience. It looks funny that faith can cure a disease but it's a real truth. There is a quote for faith that
“Faith can move mountains”
It means faith have so much of power that it can move even mountains. But here, we have to fight with a simple disease which is extremely easy.
The most common cause of this electrolyte imbalance is dehydration.
A person may experience an electrolyte imbalance if they get dehydrated or have too much water in their system. Vomiting is the most frequent cause of an electrolyte imbalance. diarrhea.
What function does the electrolyte serve in the body?When dissolved in water, chemicals known as electrolytes acquire a natural positive or negative electrical charge. They support your body's ability to control chemical processes and maintain the proper balance of fluids within and outside of your cells.
During strenuous activity, drink enough of water to prevent electrolyte imbalance. Eat an electrolyte-rich diet that is balanced. Avoid doing any strenuous outdoor exercise when it's hot outside.
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Drag the tiles to the correct boxes to complete the pairs. Match the type of evidence for evolution to the correct example. Analogous structures, DNA Sequence, Vesitgal structures, homologous strutcures
Analogous structures include wings in birds and insects homo-logous structures are DNA sequences due to a common origin, and a vestigial structure can be the human appendix.
What are analogous structures?Analogous structures are traits that have the same function but they originated in different lineages.
Conversely, homo-logous structures have the same common origin but they may play different functions.
In conclusion, wings in different taxonomic groups may represent analogous structures, DNA sequences are homo-logous structures when they have the same ansestor and the human appendix is a vestigial structure.
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HELP
Nephrons, the functional unit of kidneys, are responsible for formation of urine. The sentences describe situations that are the result of problems in the urine formation process. For the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
Answer:
no nephorns is no
Explanation:
t a functional unit of kidneys
what is personality in psychology ?
Personality psychology is a branch of psychology that examines personality and its variation among individuals. It aims to show how people are individually different due to psychological forces.
.
What is the first step in transcription?
Complementary bases come in and pair with the old bases.
The original DNA strand is unzipped.
A new sugar-phosphate backbone is constructed.
Bases are proofread.
The first step in transcription is that the original DNA strand is unzipped. That is option B.
what is transcription?Transcription in genetics is defined as a way by which cells produce Ribonucleic acid from an existing Deoxyribonucleic acid sequence.
The first step of transcription is called initiation. This is when signals are sent to the DNA to unwind (unzipped) so the enzyme can read the bases in one of the DNA strands.
Therefore, during the first step in transcription, the original DNA strand is unzipped.
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Guinea pigs can produce differect coat colors, white, brown, and mixed white/brown (agouti). THe allele B is codominant with allel W (white coat). Cross an agouti colored Guinea pig with a brown Guinea pig. What are the odds of the offspring; 1/2 homozygous white, 1/2 heterozygous brown; 1/4 homozygous brown, 1/2 heterozygous agouti, 1/4 white; 1/2 heterozygous brown, 1/2 homozygous agouti; 1/2 homozygous brown, 1/2 heterozygous agouti.
In codominance, two alleles can be simultaneously expressed. The correct option is D. 1/2 homozygous brown (BB), 1/2 heterozygous agouti (BW).
What is codominance?Codominance is an inheritable pattern in which two alleles can be simultaneously expressed.
In these situations, heterozygous individuals can express two phenotypes, each of them coded by one allele.
Heterozygous individuals' phenotype is an additive expression of their parents' genes.
In the exposed example, coat color are white, brown and agouti (mixed).
Allele B codes for brownAllele W codes for whiteGenotype PhenotypeBB Brown
WW White
BW Agouti
Cross: Agouti pig with brown pig
Parentals) BW x BB
Gametes) B W B B
Punnett square) B W
B BB BW
B BB BW
F1) 50% of the progeny is expected to be homozygous BB and express brown coat color
50% of the progeny is expected to be heterozygous BW express agouti coat color
The correct option is then option D. 1/2 homozygous brown, 1/2 heterozygous agouti.
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Throughout the world countries are dumping their garbage in the oceans. This dumping has affected the fish and other aquatic organisms of the oceans. Many fishing industries have collapsed due to this extensive dumping. Which theory explains this scenario?
The theory that explains this scenario is the tragedy of the commons theory.
What is the tragedy of the common theory?It is an economic theory that explains how individual gains create a general problem in society at large.
When individuals pursue personal gains even at the expense of creating a general problem in society, it results in the tragedy of the common.
Indiscriminate dumping of garbage in the ocean by countries results in a general problem that affects the entire world vis a vis the collapse of many fishing industries.
Fishes represent a source of protein for man all over the world.
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Halons and cfc’s both _______. a. inhibit ozone formation b. cause ozone formation in the troposphere c. destroy ozone in the stratosphere d. cause excess ozone formation in the stratosphere please select the best answer from the choices provided a b c d
Halons and cfc’s both destroy ozone layer in the stratosphere.
Chemicals with carbon, chlorine, and fluorine atoms are known as chlorofluorocarbons (CFCs), and they are neither poisonous nor combustible. They are employed as solvents, refrigerants, blowing agents for foams and packaging materials, and in the production of aerosol sprays.Halons, hydrochlorofluorocarbons, and chlorofluorocarbons all damage the ozone layer, which protects the planet from damaging ultraviolet (UV-B) rays from the sun. Additionally warming the earth's lower atmosphere, CFCs and HCFCs alter the climate on a global scale.Life on earth is made possible by the stratospheric ozone layer, which protects the planet from the sun's harmful ultraviolet (UV-B) rays. Ozone in the upper atmosphere is destroyed by man-made substances such halons, hydrofluorocarbons, and chlorofluorocarbons (CFCs)learn more about ozone here: https://brainly.com/question/520639
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Why is radiometric dating of Carbon not a useful means to determine the age of the earth? What should we use instead of Carbon?
Answer:
Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that
Explanation:
In what way could you increase the rate of the reaction as it taking place in image C?
add more enzyme
add more substrate
remove substrate
remove enzymes
remove product
Answer:
Add more enzymes
Explanation:
the purpose of enzymes in nature is to increase the rate of chemical reactions inside an organism
Enzymes increases the rate of a reaction. In the given image, the enzyme molecules are not sufficient to combine with that much substrates thus more enzymes have to be added. Hence option A is correct.
What are enzymes?Enzymes are bio-catalysts which catalyses almost all biological reactions in living organisms. Catalysts are substances which increases the rate of a chemical or biochemical reaction without direct involvement and change by itself.
Catalysts helps to attain equilibrium in a reaction faster by decreasing the activation energy of the reactants. Activation energy is the minimum amount of energy required to overcome the potential barrier in a reaction.
An enzyme have a pocket like cavity into which a substrate places properly. The substrate binds with the cavity and forms an enzyme-substrate complex. This complex then forms a transition compound or an intermediate product which then forms a enzyme-product complex.
Enzyme then release the product. Thus enzymes provide a smooth surface for the reactions to take place. Hence by increasing enzyme amount appropriate to the substrate amount the reaction rate increases.
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Your question is incomplete. But your complete question probably include the uploaded image.
If a hypothesis is supported by data from repeated experiments, it is proven to be true.
Answer:
yes
Explanation:
because after proving and trying out the particular hypothesis indeed it is true
I'm not good at this.Can someone solve this?
Answer:
While the adult carp prefer slow moving water, they look for high, fast moving water when laying eggs (spawning). They lay hundreds of thousands of eggs at a time, which means populations grow and spread quickly. Because of this, they can quickly out-compete native species, and put ecosystems in danger.Carp are also thought to lower water quality, which can kill off sensitive organisms like native freshwater mussels.Asian carp cause serious damage to the native fish populations in the lakes and rivers that they infest because they out-compete other fish (video, 1 min) for food and space. Carp are also thought to lower water quality, which can kill off sensitive organisms like native freshwater mussels.identify two reasons why stress can influence weight gain?
Answer:
1. emotional eating or (stress eating)
2. Stress can cause cortisol which can lead to weight gain.
Explanation:
Answer: Two reasons why stress can influence weight gain:
1) In some cases having too much stress causes many people to eat or do I health things in order to forget about all that stress.
2) Having too much stress upon yourself causing that person’s emotions to change or get all mixed up causing many people to not care about the things that they cared about before due to all the stress that they had before.
*Hopefully this helped at least with a bit. Enjoy your day! ♥️*
Which of the following describes rivers and streams?
A. separated into photic and aphotic zones of still water with large amount of vegetation and fish
B. located between aquatic and terrestrial environments and reduces flooding and filters water
C. filled with running water and don't allow the collection of algae, and are home to small crustaceans
D. collected water that is murky and home to insects, phytoplankton, and burrowing organisms
Filled with running water and do not allow the accumulation of algae, and are home to the small crustaceans that describe rivers and streams. So, the correct option is (C).
What are Wetlands?Wetlands are a type of area where water either completely covers the soil or is present at or near the soil surface throughout the year or at different times throughout the year during the growing season.
Water is cleaned by wetlands as they filter out sediment, other pollutants and even chemical pollutants. Wetland areas act as a filter and processing facility for excess nutrients that may leach away from agricultural and growth sites.
It is also referred to wetlands as the "kidneys of our watersheds". It functions as its own distinct ecosystem.
Thus, filled with running water and do not allow the accumulation of algae, and are home to the small crustaceans that describe rivers and streams. So, the correct option is (C).
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Need help doing this table i have to send it tomorrow!
Grey wolf:
1. Kingdom: Animalia.
Phylum: Chordata.
Class: Mammalia.
Order: Carnivora.
Family: Canidae.
Genus: Canis.
Species: Canis lupus
Why do people utilize classification systems?The classification system offers a wealth of knowledge regarding the traits of creatures. Therefore, using a scientific name as a shorthand to describe a plant or animal can be useful.
Coconut:
2. Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Arecidae
Order: Arecales
Family: Arecaceae
Genus: Cocos
Subject: Cocos nucifera Linnaeus
Black- blacked jackled
3. Kingdom: Metazoa
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Carnivora
Suborder: Fissipeda
Family: Canidae
Genus: Canis
Species: Canis mesomelas
Chimpanzee:
Kingdom: Animalia.
Phylum: Chordata.
Class: Mammalia.
Order: Primates.
Family: Hominidae.
Genus: Pan.
Species: Pan troglodytes.
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