The muscle that separates the thoracic and abdominal cavities is the
a. intercostal muscle.
b. pectoral muscle.
c. serratus muscle.
d. oblique muscle.
e. diaphragm muscle.
E
You might also like to view...
The biologist Donald Perry discovered that rainforest birds interact in what way with the Norantea
sessilis vine?
a. Birds nest within the shelter of the thorny vine, which repels predators. b. Birds feed on the fruits of the vine, distributing the seeds around the forest in their droppings. c. Birds appear to be overfeeding on the vine's succulent fruits, probably limiting the plant's chances of long-term survival. d. Birds that feed on the nectar of the flowers inadvertently transfer pollen from one vine to another on their feet. e. Birds that feed on the nectar of the flowers inadvertently transfer pollen from one vine to another on their beaks.
A scientist discovers an unidentified organism that is composed of multiple cells and has a membrane-bound nucleus. Of the choices listed, the most likely classification would be ________
A) Archaea B) Bacteria C) fungi D) Any of the above could be correct.
Tranquilizers such as Xanax and Valium alleviate anxiety by enhancing effects of which neurotransmitter?
A. Serotonin B. GABA C. Dopamine D. Norepinephrine E. Epinephrine
Which of the following environmental conditions is likely to enhance photorespiration?
A. a ratio of CO2 to O2 that favors CO2 B. conditions that cause the stomata to open C. plants growing far apart D. a hot, dry environment E. darkness