Which reason best explains why bacteria is good at causing infections in other organisms? bacteria have a rigid, protective layer that is called a pili. bacteria are transmitted easily and reproduce quickly. bacteria evolve slowly as they pass on genetic information. bacteria are easily killed by a host’s immune system or antibiotics.

If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?

Competition occurs between species when

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?