What effect does overfishing have on a marine ecosystem? OA It can lead to overconcentration of mineral elements.
ОВ. It can lead to loss of species or ecosystems.
OC. It can lead to increase in marine debris.
OD. It can lead to decrease in ocean pH levels.​

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.

What is the primary function of the nervous system?

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods