Answer:
B. Human toddlers walking
Explanation:
A bird feeding its young is innate, their kids need to eat and communicate it to their parents.
A child recoiling from a hot stove is a reactive behavior, they're not going to learn how to lift their hand from the stove, it's hot, they're going to move.
Squirrels opening nuts is also innate, they need food and opening nuts is how they get food.
Therefore the answer is B, human toddlers learn how to walk.
Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation.
This interaction is an example of environmental factors affecting <u><em>genetic expression</em></u>. In these situations, the environment causes specific segments of DNA to be expressed, meaning they are transcribed to mRNA and subsequently used to form proteins.
Meanwhile, other parts of the genome remain or are forced to be silent. This can be a result of mutations or simple biochemical reactions between the environment and the genome.
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C) Thé mass of the atom increases as the atomic number is changed and that adds to the amount of neutrons.
Answer:
34 percent of the bases have to be thymine
Answer:
Tributary, River,River System
Explanation:
Tributary is smaller because it is like a smaller river running into a larger one. River System is largest because this is all of the rivers in one.
