Apoptosis is occurring at
a. A.
b. B.
c. C.
d. D.
e. E.
E
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Four of the five answers listed below are descriptive of annelids. Select the exception
a. closed circulatory system b. fluid-filled coelom c. jointed appendages d. segmented body e. tubular gut
Dad has a genotype of AaBb. He can produce sperm with how many different genotypes?
A. four B. two C. five D. three E. one
Which term refers to muscles that are attached to bones, and cause bones to move at their joints when they contract?
A. skeletal muscles B. smooth muscles C. involuntary muscles D. ligament tissues E. cardiac muscles
Why is there great phylogenetic diversity among phototrophic eukaryotes?
a. Their ancestor diverged early, allowing descendants more time to evolve apart. b. Secondary endosymbiosis occurred several times. c. Several kinds of cyanobacteria were engulfed. d. Both a and b are correct.