What does the 9 + 2 complex refer to?
a. both the Golgi complex and the endoplasmic reticulum
b. both the cilia and the nucleus
c. both the flagella and the plasma membrane
d. both the flagella and the cilia
Ans: d. both the flagella and the cilia
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In a nucleotide, the pho'sphate is attached to the ____________ carbon of the sugar, and the base is attached to the ____________ carbon of the sugar
A. 1'; 5' B. 2'; 3' C. 3'; 5' D. 5'; 1' E. 5'; 3'
When receptors coupled to phospholipase C are activated, calcium levels in the cytosol increase when ______
A. diacylglycerol binds to ligand-gated channels on the endoplasmic reticulum, releasing calcium. B. IP3 binds to ligand-gated channels on the plasma membrane, releasing calcium. C. diacylglycerol binds to ligand-gated channels on the plasma membrane, releasing calcium. D. IP3 binds to ligand-gated channels on the endoplasmic reticulum, releasing calcium. E. phospholipase C phosphorylates the receptor leading to calcium production.
Most cells in the body are in prophase.
a. true b. false
You catalog all obligate asexual species within a family of insects and notice that asexual species are rare and are all members of genera that consist mainly of sexual species. Why do you conclude that asexual species tend to be short lived?
What will be an ideal response?