Non-disjunction occurs when a the chromosomes do not split properly during meiosis resulting in too few chromosomes I believe.
Answer:
They're constructed by grouping organisms together based on their shared characteristics
Explanation:
Hope this helps :)
Answer:
True, bones
Explanation:
The first one is kind of like common sense I guess
The second one is bones because, one, I've learned this before, and two, have you ever seen those ads where the guy tells you to drink milk because milk strengthens bones? Well, milk is calcium.
