As a submarine gets closer to the bottom of the ocean. which of these is it likely to encounter? select the two correct answers. a. a bioluminescent fish b. a v-shaped trench c. a coral reef d. a continental shelf

Question 1 of 102 pointswhich best describes adaptive radiation? oa. geographical isolation caused by an adaptationob. biodiversity resulting from few ancestorsoc. a decrease in the rate of speciationd. adaptations that organisms teach each other

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

In what part of the body does the most muscle activity happen?