Which of the following represents the secular trend?
a. the onset of puberty occurring earlier than in past generations
b. a historical trend towards increasing adult height
c. individuals having a longer life span than those in previous generations
d. all of these
B
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Simon has curly hair. If he is homozygous for the gene that determines curly hair, what is true of his parents??
a. ?They must each have a recessive allele for straight hair. b. ?One must have a recessive allele for straight hair, while the other must have a dominant allele for curly hair. c. ?They must each have a recessive allele for curly hair. d. ?They must both have mutated dominant genes for straight hair
Theta waves typically occur during which stage of sleep?
a. Stage N1 b. Stage N2 c. Stage N3 d. REM
According to international statistics, teenagers in the United States have many more births than teenagers in any other developed nation. The reason for this troubling statistic is that
more contraception is available to teenagers in other countries. teenagers in the United States have more sex than those in other countries. teenagers in the United States use less contraception than those in other countries. teenagers in other countries are taught sex education from an earlier age.
The idea of critical thinking is to be more cognizant of facts as opposed to concepts, assumptions.
Answer the following statement true (T) or false (F)