What are the female gametes?
a. uterus
b. ova
c. fallopian tubes
d. semen
e. ovaries
b
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The granulations that appear during the healing of a large, open wound are composed mainly of
A. blood clots. B. phagocytic cells. C. scar tissue. D. fibroblasts surrounding blood vessels.
Which choice describes the activation steps of a G protein-coupled receptor properly (and in correct order)?
A. Ligand binds to receptor, G protein activated, effector protein activated, second messenger made available B. Ligand binds to receptor, second messenger activated, G protein turned on, protein kinase activated C. Protein kinase activated, ion channel opened, ions enter and activate second messenger, G protein turned on D. Ion channel opened, G protein activated, second messenger synthesized, phosphatase ends signal
Osmosis is the diffusion of
A. solutes across a membrane. B. water across a membrane. C. water within the inside of a cell. D. solutes within the inside of a cell.
The presence of a synaptic cleft between cells is characteristic of:
A) chemical synapse. B) electrical synapse. C) both chemical and electrical synapses. D) neither chemical nor electrical synapses.