Read these sentences from the text. "Perhaps not surprisingly, skin-our interface with the world-supports a large
number of the body's most diverse populations of bacteria. There are at least 1,000
different species of skin bacteria, along with dozens of fungi and other mícrobes.
Most aren't harmful, and many protect us."
Based on this information, what does the word "diverse” probably mean?
A
having a lot of variety
B
being harmful to others
being helpful to others
D
moving from one place to another

Pulmonary arteries carry highly oxygenated blood. true or false?

Kudzu vines grow by climbing and wrapping around trees. trees covered by kudzu can die because they are starved of sunlight. what type of relationship exists between the trees and the kudzu growing on them?

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.