The venom from black widow spiders causes massive release of neurotransmitters which means its primary effect is on which membrane?
a. presynaptic
b. postsynaptic
c. subsynaptic
d. suprasynaptic
A
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Before the mRNA transcribed from a gene can be used to translate into a protein, it must be
A) edited to remove introns. B) edited to remove exons. C) transported into the cytoplasm. D) edited to remove introns and transported into the cytoplasm. E) coated with phospholipids for transport out of the nucleus.
Your swimming buddy Mark jumped into a pool parallel to the water surface. When he stood up, he yelled "ouch" and you noticed that the skin on his chest and belly looked red and irritated. How would you describe the properties of water to explain to Mark why this happened? Why doesn't it hurt when pool water is penetrated perpendicular to the surface, as with a hands-first or feet-first dive?
What will be an ideal response?
Most people's core temperature varies by about ____?F
a. 0.6 b. 1.8 c. 2.6 d. 4.0 e. 5.2
All the bones below belong to the axial skeleton, except the ________, which belongs to the appendicular skeleton
A) scapula B) stapes C) thoracic vertebra D) frontal bone E) mandible