◦decide whether each of these threats to the coral reef would be considered man-made or natural
◾crown-of-thorns
◾pollution
◾destructive fishing

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

How are fossils used to date organisms?