Answer:
B
Explanation:
B: Differential survival and reproduction
change enviroment causes natural selection
1.The nucleus is often considered to be the cell's control center.
(because it contains the DNA)
2.The cytoplasm consists of everything
inside the plasma membrane of the cell.
(actually it excludes the nucleus)
3.The plasma membrane forms
a boundary between the inside and outside of the cell. - it controls what can enter and what can't!
4.The cytoskeleton is essentially a "skeleton" inside the cell..
it maintains the form of the cell
5.The
rough endoplasmic reticulum is covered with
Ribosomes -they make the proteins!
6.Lysosomes
use enzymes to break down foreign matter and dead cells.
7.plant cells cells specifically have a cell wall, a large central
vacuole, and chloroplasts.-choloplasts are only found in plants!
Answer:
Vestigial structures do not have a function, yet they are homologous to functional structures in related species. They are important because they provide clues to the ancestry of the organism. Many species look similar as embryos.
Answer: Nematoda
Explanation: The Dracunculus medinensis is a parasite that is often referred to as a roundworm. The answer Nematoda is correct because is is the phylum that classifies roundworms and is greek for "roundworms"
