Made of 4 nitrogen bases; Adenine, Thymine, Guanine, and Cytosine; Base- 1 po Pairing Rules says: A hooks to T: G hooks to C*
Carbohydrates
Lipids
Proteins
Nucleic Acids
Main source of quick energy for most animals
int

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons