Cells in the nervous system that send and receive electrical signals are called ____

a. receptors
b. neurons
c. sensors
d. glial cells
e. signal cells


ANSWER: b

Biology & Microbiology

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Reinforcement is most likely to occur when _____

A) the environment is changing B) hybrids have lower fitness than either parent population C) prezygotic isolating mechanisms are in place D) gene flow is low

Biology & Microbiology

Which type of receptor undergoes a conformational change upon activation? (Select all correct choices.)

A. G protein-coupled receptor B. receptor kinase C. ligand-gated ion channel D. nuclear receptor

Biology & Microbiology

Provide a possible explanation for the mechanism that occurs when coastal area freshwater aquifers are overdrawn, resulting in intrusion of salt water into the aquifer

What will be an ideal response?

Biology & Microbiology

Figure 4.2 represents a (dichotomous/classification/taxonomic) key of the type used to identify a microbe.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology