What makes climate change research valid? A. Many studies point to the same conclusions.
B. Many studies are made up.
C. Many studies fail to come to a conclusion.
O D. Many studies are based on opinions.

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

What are the two main phases of a cell cycle