When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called
A. chemical-gated channels.
B. ligand-gated channels.
C. open-gated channels.
D. nongated ion channels.
E. voltage-gated channels.
E
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One main category of neurotransmitters is amino acids.
Answer the following statement true (T) or false (F)
Choose the term that does not belong with the others.
A. Juxtaglomerular apparatus B. Macula densa C. Juxtaglomerular cells D. Afferent arteriole E. Glomerulus
Teleosts have a bewildering variety of patterns of sex change, but protogyny and protandry are the most common. Describe the evolutionary principle that underlies those two patterns
What will be an ideal response?
Which of the following muscles is not in the anterior compartment of the forearm?
A. Flexor digitorum profundus B. Supinator C. Flexor pollicis longus D. Palmaris longus E. Flexor carpi radialis