Chemical selection occurs....
A. when a catalyst speeds up a process that would normally occur at a slower rate.
B. when covalent bonds are formed between two previously unlinked molecules, increasing their stability.
C. when a chemical within a mixture increases compared to other chemicals in the mixture due to a unique property.
D. during the ribozymic phase of coacervate formation.
E. after the formation of a membrane and when the DNA is replicated and transcribed.
C. when a chemical within a mixture increases compared to other chemicals in the mixture due to a unique property.
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The density of a population is defined as______
a. the number of individuals in a population at a specified time b. the number of individuals in a population at a specified place c. the number of individuals per unit area or per unit volume of habitat d. the size of the individual organisms per unit area e. the number of the individual organisms per unit size of each individual
Which of the following is NOT involved in the
development of acne? a. excessive production of sebum b. Staphylococcus epidermidis c. dead skin cells d. hair follicles e. neutrophils
The larger muscle fibers found in males account for the fact that males tend to be, on average, stronger than females
Indicate whether the statement is true or false
Which of the following choices regarding fixed action patterns is incorrect?
a) A fixed action pattern can be potentially maladaptive. b) Fixed action patterns are innate behaviors. c) Once it is triggered, a counter-stimulus could halt a fixed action pattern. d) Fixed action patterns require no learning. e) A fixed action pattern of one organism can be exploited for the benefit of another.