Which characteristics correctly describe prokaryotic cells? (Select all that apply.)

A. have no nucleus

B. have a nucleus

C. have membrane-bound organelles

D. have no membrane-bound organelles

You are a scientist trying to develop a technology that can be used to power wrist watches. Which type of electromagnetic wave would be most useful to investigate?

The phrase emphatic iron of the fence is an example of

State one environmental factors in the new habitat that would account for this increase in the population?

Which organisms represent the most biomass in an ecosystem? 1) scavengers 2) secondary predators 3) herbivores 4) producers

What is the difference in structure of the antennae and antennules?

Bianca is very self-conscious about her weight. she indulges in strict dieting and often skips her meals. as a result, she was recently diagnosed with osteoporosis, an abnormal condition related to the thinning of bones.

All processes of moving materials across the plasma membrane are classified as either A) diffusion or osmosis B) passive or active transport C) phagocytosis or pinocytosis D) endocytosis or exocytosis

What three factors does a species diversity index take into account? a. Species richness, species diversity, and species productivity b. Species richness, species abundance, and species evenness c.

Wins or losses are the ultimate measure is competitive sports. True or false?

DNA, the genetic material of living organisms, is damaged by light in the A) visible region of the spectrum. B) ultraviolet region, especially below a wavelength of 320 nm. C) ultraviolet region, especially above a wavelength of 340 nm.