PLEASE HELP WITH SOME BIOLOGY ASAP!! THANK YOU AND GOD BLESS Scientists often say that structure determines function when discussing biologically important molecules. Enzymes fit this description because...

A. Enzymes are uniformly shaped and versatile. The shape never changes.

B. Enzymes exist in many shapes and sizes. The shape of the enzyme is irrelevant and they are used interchangeably.

C. Enzymes are similar to other molecules and can mimic their functions.

D. Enzymes are a specific shape that helps catalyze specific reactions. Once the shape changes, the efficacy of the enzyme changes.

Over the past 60 years, many amphibian species have experienced significant population declines and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. chytridiomycosis is a fungal disease first identified in 1998 as a cause of massive amphibian deaths. in some severely impacted populations, a few individuals have survived, perhaps because of some natural resistance. if these resistant individuals continue to survive and prosper, new resistant populations might emerge. this would be an example of the founder effect artificial selection genetic drift natural selection sexual selection

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

Asap what occurs after cytokinesis is completed at the end of meiosis 1?