3. When muscles are active, cells use energy and oxygen at a higher rate and produce waste products, such as lactic acid, more rapidly. Explain how your body reacts to keep itself in balance during these
periods of activity.

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Most of the carbon on earth is stored in the form of

Explain how light energy is turned into chemical energy? ! due tomorrow!