How do organisms interact with and respond to changes in their environment?

Genotype Homozygous- Both alleles are similar

Genotype Heterozygous- The alleles are different

Phenotype Heterozygous- They are created by the dominant allele

Phenotype Homozygous-  If the allele is dominant or recessive the opposite phenotype will be expressed.

The genotype is a collection of genes in DNA that are mainly accountable for distinctive traits or characteristics, whereas the phenotype is an organism's physical appearance or characteristic.

An person's genotype is the integration of alleles that they obtain for a specific gene. A person's phenotype is the sum of their noticeable traits and characteristics. The genotype of an organism is directly inherited from its parents, whereas the phenotype is solely effected by genotype.

There are three possible genotypes, PP (homozygous dominant), Pp (heterozygous), and pp (homozygous recessive). All three have distinct genotypes but the first two have the same phenotype (purple) as distinguishable from the third (white).

The observable characteristics of an individual, like height, eye color, and blood type, are referred to as phenotypes.

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The light-producing genes are under transcriptional control

Why do Hawaiian bobtail squids glow?

A bobtail squid's light organ contains a single species of bacterium that emits a bright glow that gives the animal nighttime protection from predators by enabling it to blend with the moonlight below the waves. The species whose genome was recently examined is closely linked to the depicted Euprymna bobtail squid.

These patterns are illuminated by gigas and related squids to produce visual messages that may be clearly seen in the deep, dark ocean. The body glows from thousands of tiny subcutaneous (s.c.) photophores (bioluminescent organs) buried in the muscle tissue, backlighting the pigmentation patterns.

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Answer:

d. $48

Explanation:

1 year = 12% = 0.12

2 years = 12% × 2

2 years = 24% = 0.24

24% of $200 = 0.24 × 200

24% of $200 = $48

Therefore the interest on $200 for 2 years is $48

:)

RNA polymerase connects to a promoter sequence close to the start of a gene to start transcription (directly or through helper proteins).

Transcribing RNA molecules using DNA as a template is the primary task of RNA polymerase. The transcription process, in which the data held in a DNA molecule is copied into a new molecule of mRNA, is greatly aided by the multi-unit intermediate enzyme known as RNA polymerase (messenger RNA).

Prior to the RNA molecule being translated into a protein, introns are non-coding regions of an RNA transcript or the DNA encoding it. Exons are the regions of DNA (or RNA) that contain the protein-coding information.

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The population of AA increases but on the other hand AB and BB the population decreases after 10th generation.

The genetic makeup of an individual is called their genotype. The two alleles that a person has inherited for a single gene are referred to by this phrase in more detail.

Here for Generation 1, AA = 1, AB = 13, BB = 6

After 10 years it changes AA = 5,AB = 12 and BB =3.

Because AA genotype is generate new genes and alleles, increasing genetic variety In a population, new genetic diversity may be formed within generations, hence a population with a fast rate of reproduction would most likely have a high level of genetic variety.

On the other hand, for AB and BB is decrease in no because:

Rare alleles can disappear due to genetic drift, which can also shrink the gene pool. According to the theory that genetic drift contributes to the development of new species, genetic drift can also result in a new population being genetically diverse from its ancestral population.

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The following is most important in driving the guppies to change their life history in face of predation the guppies are an opportunistic species.

Researchers studying guppies in Trinidad found that guppies breed faster and more often in streams with high predation levels. Guppies are an opportunistic species. The ones with the brightest colors, as they can attract more mates.

Larger offspring have increased buoyancy for accessing food in toxic or dark environments. Organisms without hard parts are the least likely to fossilize. Fossils of soft organisms from bacteria to jellyfish are extremely rare. Plotting exponential growth against time reveals a sigmoidal curve. Plotting exponential growth against time reveals a J-shaped curve.

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Gel electrophoresis for proteins in Western blotting (Immunoblot). A method for analyzing individual proteins in a protein mixture is called Western blotting, commonly known as immunoblotting (e.g. a cell lysate).

kinds of gel. Agarose and polyacrylamide gels are the two forms of gel that are most frequently employed. Different sizes and types of analytes work well with each type of gel. Polyacrylamide gels offer a very high resolving capacity for tiny DNA fragments and are typically employed for proteins.

In proteomic research, where resolution of hundreds of proteins on a single gel is occasionally required, 2D PAGE offers the best resolution for protein analysis.

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The function of the iodine in the starch hydrolysis test is c)make glucose visible. So, correct option is c.

Starch hydrolysis test  is utilized to recognize microscopic organisms that can hydrolyze starch (amylose and amylopectin) utilizing the chemicals a-amylase and oligo-1,6-glucosidase. Frequently used to separate species from the genera Clostridium and Bacillus. In view of the enormous size of amylose and amylopectin particles, these living beings might not go through the bacterial cell at any point wall.

To involve these starches as a carbon source, microorganisms should discharge a-amylase and oligo-1,6-glucosidase into the extracellular space. These chemicals break the starch atoms into more modest glucose subunits which can then enter straightforwardly into the glycolytic pathway. To decipher the consequences of the starch hydrolysis test, iodine should be added to the agar.

Hence, correct option is c.

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(Complete question) is:

The function of the iodine in the starch hydrolysis test is to -

a) make starch visible

b)act as a mordant

c)make glucose visible

d)make the cells visible

If we denote the recessive allele of the gene as p and the dominant allele as P, the offspring will be of phenotypic ratio 3:1 those with chlorophyll to those without chlorophyll respectively.

Genotypically, 25% would be homozygous for dominant allele, 50% heterozygous and 25% homozygous recessive.  See attached punnet square.

A number of plant species have a recessive allele for albinism homozygous albino individuals are unable to synthesize chlorophyll. If a heterozygous tobacco plant is allowed to self-pollinate and 500 of its seeds germinate.

Therefore, If we denote the recessive allele of the gene as p and the dominant allele as P, the offspring will be of phenotypic ratio 3:1 those with chlorophyll to those without chlorophyll respectively.

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Answer:

A substrate enters the active site of the enzyme. This forms the enzyme-substrate complex. The reaction then occurs, converting the substrate into products and forming an enzyme products complex. The products then leave the active site of the enzyme.

Explanation:

The orchid population will grow to only about 81 individuals in 10 years.

51.6, Nt = 50e(0.048)(10) = 81.

Cold weather is usually a density-independent factor as it affects pythons in the same way regardless of whether they are low or high in numbers. As pythons become denser density-dependent factors such as competition for food increase.

The Burmese python is one of the Greater Everglades' most destructive and harmful invasive species preying on native birds mammals and even alligators. Pythons compete for food with native wildlife including mammals birds and other reptiles. A severe mammal decline in the Everglades National Park is linked to the Burmese python.

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Anthropologists investigate the idea of culture and how it relates to people's lives in various historical and geographic contexts. In order to understand our own society better, they research other cultures. For aid in interpreting the present, they research the history.

In order to fulfil colonial demands, anthropological study also looks at the culture of the colonial endeavour itself, emphasising the establishment of hierarchies and the process of resource exploitation.

The study of every facet of human existence is possible thanks to anthropology. It serves as a portal to the abyss. We may learn about ourselves, our past, present, and future via the study of anthropology. The study of anthropology fosters global interconnectedness.

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Answer:

Im pretty sure its a

Explanation:

because evolution is never ending

It is true to say that influenza viruses that have undergone antigenic drift are more problematic than those that have undergone antigenic shift because antigenic drift leads to annual influenza epidemics.

Influenza viruses (IAV) causes flu in birds and a few vertebrates, and is the main types of the class Alphainfluenzavirus of the infection family Orthomyxoviridae. Kinds of all subtypes of flu An infection have been detached from wild birds, in spite of the fact that sickness is unprecedented.

Influenza are an infections are negative-sense, single-abandoned, divided RNA infections. The few subtypes are marked by a H number (for the sort of hemagglutinin) and a N number (for the kind of neuraminidase).Some disengages of flu An infection cause extreme illness both in homegrown poultry and, once in a while, in humans. Periodically, infections are communicated from wild sea-going birds to homegrown poultry, and this might cause an episode or lead to human flu pandemics.

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The first phase of both aerobic and anaerobic respiration is known as glycolysis. Therefore, it is most likely that this method for converting cellular energy came into being first.

Glycolysis, the citric acid cycle, and the electron transport chain are three distinct metabolic pathways that work together to form cellular respiration. While the other two mechanisms are aerobic, glycolysis is anaerobic.

The process of photosynthesis is what allows for sophisticated life to exist on Earth. Photosynthesis is also the source of all oxygen on our planet. Both oxygenic and anoxygenic photosynthesis is possible. Oxygenic photosynthesis splits water molecules with the help of light energy, releasing oxygen, electrons, and protons.

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Euglena uses flagella to move, while amoeba uses pseudopods to move.

Euglena is a type of protist, a diverse group of heterotrophic or autotrophic unicellular organisms. Many species of Euglena have long, whip-like structures called flagella that they use for swimming and locomotion in water.

Amoebas are also a type of protist and move using a different mechanism called pseudopodia. Pseudopodia are temporary extensions of cell membranes that allow amoebas to move and change shape while crawling and flowing through the environment. Amoebas do not use flagella or cilia for locomotion.

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Photosynthesis consists of producers taking in CO₂ which is therefore denoted as option C.

This is referred to as the process in which green plants manufacture food in the presence of sunlight and employs the use of various compounds in other to produce glucose.

The plants involved in this process are referred to as primary producers and it employs the use of the green pigment known as chlorophyll which traps the sunlight and provides energy for the reaction to occur in the cells of the plants. This ensures that food is available to other members of the ecosystem such as consumers e.g animals , humans etc.

They take in carbon dioxide and water and produce glucose and oxygen as the product in this type of reaction and it can be seen below:

6CO₂+ 6H₂O → C₆H₁₂O₆ + 6O2.

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The urinary bladder of a fetal pig is sac like, muscular and expandable walls with a thickness of 10mm and a firm texture.

Fetal pigs are unborn pigs used in elementary and advanced biology classes for learning through dissection. They are extracted from diseased sows killed in meat industries. They are used in the study of mammalian anatomy.

These pigs are usually 10-15mm and 20-30 days of age and their highest is 50-70mm in length and 60-70 days old. The urinary bladder has a firm texture and a thickness of about 10mm and also they walls are muscular lining and a sac like shape.

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Volcano is an etymology from the word Vulcan in Latin, 3rd option.

Etymology is the study of the origin and history of words. It explains how words are coined and what languages they originate from. There are different languages that bear meaning to the lot of scientific or science related words. For example logos means study in Greek which "logy" from "biology" is a derivative of.

Similarly, Volcano comes from the Latin word "Vulcan" the Roman god of fire and French, volcan. The name was originated in the Mediterranean sea of Sicily, Italy.

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Without the channels that proteins provide, ions could not traverse the plasma membrane and an action potential could not occur.

An action potential occurs when the membrane potential of a specific cell location rapidly rises and falls. This depolarization is followed by depolarization in the surrounding areas. Animal cells that display action potentials fall into the category of excitable cells, which also includes neurons, muscle cells, and some plant cells.

The cell membrane is made up of a lipid bilayer that incorporates larger protein molecules. Because it efficiently blocks the flow of electrically charged ions, the lipid bilayer acts as an insulator.

Action potentials are generated by channel proteins, which switch from a closed to an open state in response to the voltage difference between the interior and exterior of the cell.

Therefore, without proteins, action potential is not conceivable.

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Net primary productivity is most limited by available sunlight and nutrients.

Nutrients limit primary production in aquatic ecosystems. When a nutrient is limiting an element that must be added for production to increase in a particular area. The nutrient that are most limiting in marine production is either nitrogen or phosphorus.

In general, Phosphorus is the most limiting factor in net primary production in aquatic ecosystems. This is true for both lakes and marine ecosystems, these approaches include bioassays. This occurs when the concentrations of dissolved inorganic nutrients are limiting from nutritional  inputs.

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Sarco/Endoplasmic Reticulum Calcium ATPases (SERCA enzymes) provide an active, ATP-dependent gradient of several thousand-fold calcium ion concentration between the cytosol (low nanomolar) and the ER lumen.

In response to a range of signals, including neurotransmitters and neurotrophic factors, calcium is released from the endoplasmic reticulum (ER) in neurons (Rizzuto 2001). Inositol trisphosphate (IP3) receptors and ryanodine receptors are two separate types of ER calcium channels that mediate calcium release.

A high surface-area-to-volume ratio is the outcome of compartmentalization within a cell.

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(C) Given the brain size and pelvic dimensions of Homo erectus, their infants were likely altricial (helpless at birth)

This is a type of extinct human that existed between 1.6 million and 250,000 years ago, during the Pleistocene Epoch. Homo erectus was the first human species to have a flat face, a prominent nose, and probably scant body hair coverage. It also possessed a more contemporary gait and body proportions.

This can simply mean a being hatched, born, or having young that are hatched, born, or having young that are hatched, born, in a very immature and defenseless condition, requiring care for a while.

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Answer:Natural selection.

It is the process by which certain traits become more common in a population over time. It occurs when individuals with certain traits are more likely to survive and reproduce than those without those traits. This leads to the traits becoming more common in the population over time. Natural selection is one of the main mechanisms of evolution.

Answer:

CENTRIOLE

Explanation:

The organelle not found in plant cells is the centriole. Plant cells have a large central vacuole that holds water and minerals for the cell.

Centrosomes and lysosomes are organelles found only in animal cells and not in plant cells.

Organelles are biological structures that perform specific functions within the cell. Organelle means "small organ". The body is made up of various organs, and even within cells, there are "small organs" that perform specific functions. They have membrane compartments or structures of cells. Organelles are membrane compartments or structures within cells that perform specific functions. An organelle refers to any cellular structure, whether membrane-bound or not, that performs a specific function. Some examples are mitochondria, chloroplasts, and cell nuclei. They all have specific functions within the cell that help the cell sustain itself.

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The digestive tract of the earthworm and the salamander are similar in some ways, but they also have some differences. Both animals have a simple, linear digestive tract that consists of the mouth, esophagus, crop, gizzard, and intestine. However, the earthworm has a smaller and simpler digestive tract than the salamander.

One of the main differences between the digestive tracts of the earthworm and the salamander is the presence of glands. The salamander has several glands in its digestive tract, including the salivary glands, liver, and pancreas, which produce digestive enzymes and hormones that help to break down food and absorb nutrients. In contrast, the earthworm does not have any glands in its digestive tract, and it relies on the mechanical grinding action of its gizzard to break down food.

Another difference between the digestive tracts of the earthworm and the salamander is the presence of a stomach. The salamander has a muscular stomach that is used to store and churn food, which helps to break it down and mix it with digestive enzymes. The earthworm, on the other hand, does not have a stomach, and it does not have the ability to store food for extended periods of time.

Overall, the digestive tract of the earthworm is smaller and simpler than that of the salamander, and it lacks some of the specialized structures and functions that are found in the salamander's digestive tract.