Answer: Why aren't frogs reptiles? Frogs are considered amphibians instead of reptiles because their skin is porous, they need to live in habitats where water is plentiful, and they go through a process called metamorphosis.
Explanation:
mark brainlest plzz
Hi!
The major source of new alleles in the natural population is Mutation.
We learned in our biotechnology class that mutation creates new DNA as the primary source of evolution. Which means. when mutation creates a new sequence of DNA for a certain gene, new alleles are being produced.
Its their r group. <span>Variations in R group usually lead to different amino acid. E.g Glycine has H(Hydrogen) as its R group, while Alanine has CH3 as its R group. mom makes me listen to her old school stuff so yeah >.<</span>
the correct answer is B) its released by the parathyroid gland
<span>Answer: embryos of dissimilar organisms, such as sharks and humans, resemble each other
Explanation: The perception of Darwin's theory on Evolution was challenged when it was discovered that embryos of humans and shark resembled each other.</span>