Which of the following organisms have benefited from wolf reintroduction?
A) grizzly bears
B) beavers
C) woody plant species
D) all of the above
D
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The greatest number and variety of indigenous microflora of the human body live in or on the:
A) colon. B) genitourinary tract. C) mouth. D) skin.
In a muscle contraction, the sarcomere shortens when ____
a. the myosin heads move in opposite directions b. the myosin heads move towards each other c. the actin filaments move in opposite directions d. the actin-myosin cross-bridge disconnects e. ATP is formed from ADP and Pi
What will occur if a morula divides into three masses of cells?
A) The resulting embryos will develop severe birth defects due to missing genes. B) The resulting embryos will die. C) Normal identical triplets will be born. D) Three distinctly different embryos will develop, depending on which homeoboxes went with which mass of cells. E) The resulting embryos will develop, but they may be missing some organs based on which germ layers were transferred with each section.
Which is an endocrine gland that raises blood calcium levels?
A) parathyroid B) thyroid gland C) pituitary gland D) testes