Plants have been genetically engineered to be resistant to damage from insects by the use of
a. Bt toxin.
b. glyphosate.
c. epidermal growth factor.
d. HIV.
Answer: A
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Heterotrophs need only a few more genes than autotrophs
Indicate whether the statement is true or false.
The portion of potential resources and conditions that an organism actually exploits as a result of interactions with other species is its
A) home range. B) territory. C) realized niche. D) fundamental niche.
When a limiting factor becomes more important as the size of the population increases, it is known as a(n)
A. biotic potential. B. density-independent limiting factor. C. density-dependent limiting factor. D. intrinsic factor.
What is measured by the machine that Augustus Waller invented?
a. blood pressure when the ventricles are contracting b. cardiac output c. electrical activity of the heart d. blood pressure when the ventricles are relaxed