12) How do harvesting wood and surface mining for coal affect ecosystems?
a)Both cause soil erosion by removing anchoring roots.
b)Both cause the water table to fall, which causes water shortages for animals in the area.
c)Both cause aeration of the soil when natural minerals are removed, which increases the soil
quality
d)Both cause ecosystem stabilization by removing excess vegetation that is harmful to the
animal populations in the area.

Explain nonnuclear inheritance. ~ ap biology

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.

Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.