Why might increased soil fertility result in lower species diversity?
A) There is no relationship between soil fertility and species diversity.
B) Increased nutrients help more rare plants survive.
C) Dominant species are better able to outcompete other species.
D) Dominant species are less able to outcompete other species.
C
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During which part of the bird respiratory cycle is O2 NOT extracted from the air?
a. the first inhalation b. the first exhalation c. the second inhalation d. the second exhalation e. the third exhalation
Special cells found in the gonads that give rise to gametes upon division are called
a. germ cells. b. somatic cells. c. stem cells. d. basal cells. e. egg cells.
Assume that a Chi-square test provided a probability value of 0.02. Should the null hypothesis be accepted?
What will be an ideal response?
In southern copperhead snake venom, you'll find a protein called a disintegrin. Disintegrins bind to a class of membrane receptors called integrins. Platelets use integrin receptors to aggregate at a site of tissue damage
What effect do you think disintegrin has on the snake's prey? A) After the snake bites its prey, the molecule helps in wound healing. B) The molecule helps kill the snake's prey by producing large clots that cause heart attacks and strokes. C) The molecule interferes with clot formation so the venom can travel through the body more efficiently. D) By binding to the platelets, the molecule increases the formation of fibrin.