Answer:
A theory
Explanation:
A theory is an idea used to account for a situation or justify a course of action.
Answer:
Mutations during meiosis can often lead to disorders, diseases, etc.
Explanation:Let's say that one of the tetrads formed in the first steps of meiosis It doesn't separate and goes on.
When making gametes, some will contain the necessary amount of chromosomes while others will not
I believe the answer to your question is C, correct me if i'm wrong :)
Active transport requires energy because it moves molecules across a membrane to a region of lower to higher concentration which is often against their concentration gradient or has an obstructing factor.
