What is the function of surfactant?
A) It increases alveolar expansion.
B) It increases surface tension.
C) It stimulates activity of the cilia lining the walls of the alveoli.
D) It enhances contraction of the inspiratory muscles.
E) It prevents the alveoli from sticking together and collapsing.
E
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In overdominance, the _______ genotype is beneficial over the _______ genotypes
A. heterozygous, homozygous B. homozygous, heterozygous C. homozygous dominant, homozygous recessive D. homozygous recessive, homozygous dominant E. incomplete dominant, codominant
Inside its beak an octopus has a rasping tongue that is used to tear apart food. Which gastropod structure is this analogous to?
A. Mantle B. Shell C. Radula D. Nephridium Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about mollusk feeding? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The proper term for the small gap at the synapse that separates the sending neuron from the receiving neuron is the synaptic
A. space. B. fissure. C. divide. D. cleft.
How short must the poly(A) tail get to cause the mRNA to be degraded rapidly?
a) about 75 adenosine residues b) about 100 adenosine residues c) about 10 adenosine residues d) about 30 adenosine residues e) 1 adenosine residue