The big difference between prokaryotes and eukaryotes is that eukaryotes have ________, and prokaryotes do not.

What will be an ideal response?


membrane-bounded organelles
membrane-bound organelles
membrane bounded organelles
membrane bound organelles

Biology & Microbiology

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The fluid nature of the membranes is attributed to a lateral movement of

A. pumps such as the proton pump. B. phospholipid molecules. C. the entire lipid bilayer. D. antigen molecules. E. protein channels.

Biology & Microbiology

In the nervous system, integration ________

A) occurs at the axon B) inevitably results in the attainment of a threshold potential C) is the analysis and interpretation of sensory signals and the formulation of appropriate responses D) is the assimilation of memories

Biology & Microbiology

Evolution by genetic drift is most obvious in

A) migratory species. B) large populations. C) small populations. D) aquatic organisms. E) invertebrate species.

Biology & Microbiology

The number of described species is estimated to be 10 million.

a. true b. false

Biology & Microbiology