Some cyanobacteria are not blue-green, rather they are red or brown; this is due to the presence of the photosynthetic pigment ________.

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


phycoerythrin

Biology & Microbiology

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The term “hyperpolarization” refers to

a. movement of the resting membrane potential closer to threshold. b. movement of the resting membrane potential farther from the threshold c. an excitatory postsynaptic potential. d. the opening of sodium channels.

Biology & Microbiology

The above figure is a photomicrograph of what

kind of tissue? a. cardiac muscle b. skeletal muscle c. smooth muscle d. cartilage e. dense connective

Biology & Microbiology

A diploid germ cell will produce cells that have reduced the chromosome number by half, generating four haploid nuclei in

a)fertilization. b)mitosis. c)meiosis. d)replication. e)mutation.

Biology & Microbiology

Why is it not advisable to take antibacterial medicines when you have a cold or the flu?

What will be an ideal response?

Biology & Microbiology