There are several mechanisms through which reproductive isolation occurs. which situation is an example of behavioral isolation? o a. males of different, closely related species of fireflies signal for mates by flashing different light sequences. ob. red and purple sea urchins cannot reproduce with one another because the sperm and egg cannot fuse. oc. mules, the offspring of a male donkey and a female horse, are unable to reproduce because they are sterile. od. the reproductive organs of snails only properly align when the male and female belong to the same species. resetnextnts reservedenvironmental impur

Getting out of bed is the first goal i tackle each day. 2several small goals are achieved by me as the day progresses. 3when i am riding the bus home or walking the dog, i think about the bigger goals i have for my life. which statement correctly describes the verb tense, aspect, and voice in this paragraph? a. sentences 1 and 2 contain present progressive verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice. b. sentences 1 and 2 contain simple present verbs. sentence 3 contains present progressive verbs. all three sentences use active voice. c. sentences 1 and 2 contain present progressive verbs. sentence 3 contains simple present verbs. all three sentences use active voice. d. sentences 1 and 2 contain simple present verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice.

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

2polnis which of the following is an advantage of an in vitro experiment?me