Which statements explain current theories about dark energy and dark matter? Check all that apply.

A. Space that appears empty actually contains dark energy and dark matter.

B. Dark matter does not emit electromagnetic radiation.

C. Scientists believe dark energy will cause the universe to collapse inward to a single point.

D. Scientists theorize that dark energy is causing the expansion of the universe to accelerate.

E. Dark matter includes all of the dust, ice, and debris that scientists observe in black holes.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )

linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.