The feeding mode of hagfishes is considered:
a. predation.
b. scavenging.
c. suspension feeding.
d. both a and b.
e. b and c only.
D
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One function provided by cell membranes is ____
a. the free passage of materials into and out of the cell b. the exclusion of nucleic acids c. structural integrity d. protection from parasitic genetic information e. to counteract size restrictions
When a motor neuron transmits a message, it releases the neurotransmitter serotonin
____________________ Indicate whether the statement is true or false.
A muscle fiber from the latissimus dorsi (one of the back muscles) of a chimpanzee has a lot of mitochondria and myoglobin and can generate relatively little force. Which type of muscle fiber is being described?
A) a fast, fatigue-resistant fiber B) a fast, fatigue-susceptible fiber C) a slow, fatigue-resistant fiber D) a slow, fatigue-susceptible fiber
What is the life history adaptation called where organisms produce offspring several times over many seasons?
A. Iteroparity B. Alloparity C. Polyparity D. Biparity E. Semelparity