Answer:
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts".
Explanation:
Answer:
A = rough er
B = chloroplast
D = Cytoplasm
C = most likely a lysosome
E = cell wall
The smallest fragments travel the fastest because a smaller molecule has less resistance making it easier to travel through the gel.
Answer - C
Snakes periodically shed their skin in order to regrow new skin. Birds migrating to the south and bears hibernating are also a result of normal periodic transitions. However, extinction of a type of shrimp is most likely a result of a drastic change in the environment.
Plant cells have a cell wall that adds an additional layer of protection from the external environment.
