A creature that does NOT have an endoskeleton is the
A. beetle.
B. crocodile.
C. sea sponge.
D. starfish.
E. shark.
Answer: A
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Small interfering RNA (siRNA) regulates gene expression by:
A. inhibiting transcription. B. inhibiting splicing. C. inhibiting translation by binding to RNA transcripts. D. inhibiting translation by degrading RNA transcripts. E. inhibiting rRNA synthesis.
Arch, cellulose, and glycogen have all of the following in common EXCEPT:
a. They are complex carbohydrates. b. They are composed of glucose molecules. c. They contain hydrocarbon chains. d. They contain oxygen, carbon, and hydrogen atoms
Which disease is caused by the inhalation of fungal spores?
a. Ringworm b. Athlete's foot c. Histoplasmosis d. Ergotism e. Chestnut blight
Receptor mediated endocytosis:
A. is involved in receptor recycling B. involves cell membrane fusion C. can involve the protein clatherin D. can induce a refractory period for signal transduction E. all of the above