Some of the organic molecules on early Earth came from outer space
Indicate whether the statement is true or false
TRUE
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What would be the most direct effect of removing or damaging an insect's antennae? The insect would have trouble _____
A) hearing B) mating C) eating D) seeing E) smelling
The nitrogenous base that is only found in RNA and not DNA is:
A. adenine B. cytosine C. uracil D. guanine E. thymine
In homeostatic control, the _________ compensates for any deviation between the actual value and the set point. In body temperature regulation in mammals, this function is carried out by __________.
A. effector; skeletal muscle B. sensor; neurons C. effector; brain D. integrator; skeletal muscle E. integrator; brain
The primary sex organs of the male, where sperm are produced, are the __________
Fill in the blank(s) with the appropriate word(s)