Answer:
particulate hypothesis of inheritance
Explanation:
This states that the inheritable factors retain their identity generation after generation.
They are related because a modern bird has scales on its feet..
Answer:
Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called artificial selection.
Explanation:
The three groups of amphibians: Salamanders, Frogs, and Caecilians are different because they look different as adults. Salamanders have tails and they have four weak short limbs that allow them to walk instead of jump. Frogs have fours legs with strong hind legs and no tails. Caecilians have no legs and they are burrowing animals.