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nikitadnepr [17]
3 years ago
7

A farm pond, usually dry during winter, has plenty of water and aquatic pond life during the summer. one summer, sarah returns t

o the family farm from college. observing the pond, she is fascinated by some six-legged organisms that can crawl about on submerged surfaces or, when disturbed, seemingly "jet" through the water. watching further, she is able to conclude that the "mystery organisms" are ambush predators, and their prey includes everything from insects to small fish and tadpoles. sarah observed that the mystery pond organisms never come up to the pond's surface. if she catches one of these organisms and observes closely, perhaps dissecting the organism, she should find
Biology
1 answer:
Korvikt [17]3 years ago
7 0
Sarah should found a Gills when she observes closely and dissecting the organism. A gills is what species in the water use for breathing, when people or human have lungs to breathe, fish or underwater species use gills to breathe in water. It is a respiratory organs of animals especially fish.
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How do allosteric enzymes activate and inhibit chemical reactions in a living organism?​
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Answer:

Allosteric activators bind to locations on an enzyme away from the active site, inducing a conformational change that increases the affinity of the enzyme's active site(s) for its substrate(s). Allosteric inhibitors modify the enzyme's active site so that substrate binding is reduced or prevented.

Explanation:

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6 0
3 years ago
In pea plants, round seeds are dominant to wrinkled seeds. If you cross two heterozygous plants, what would your ratios be for g
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Answer:

Genotype - RR - 25%, Rr - 50%, rr - 25% (1:2:1)

Phenotype - Round seeds - 75%, Wrinkled seeds - 25% (3:1)

Explanation:

Let the letter "r" stand for the alleles, where R is round seeds and r is wrinkled seeds. A genotype is an individual's genes represented through alleles. Phenotypes are how the genes express themselves. In other words, genotypes will be written using letters, the alleles, and phenotypes will be the possible outcomes of the alleles.

To find the ratios/percentages of the genotypes and phenotypes you can use a punnet squares. Both of the parent seeds have the genotypes Rr and the phenotype of round seeds.

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