Which of the following is NOT associated with a human fetus in the second trimester?
a. lanugo hair
b. vernix caseosa covering
c. facial expressions
d. sucking movements
e. production of surfactant
ANSWER: e
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Based on the tree shown, pollen is a synapomorphy defining which of the following taxa as sister groups?
A. angiosperms and gymnosperms B. angiosperms, gymnosperms, and ferns C. ferns and gymnosperms D. ferns and angiosperms E. hornworts and gymnosperms
Currently, what information can be obtained from sequencing an individual's genome?
A) Information about gene variants that predispose a person to a disease, such as cancer. B) Information about gene variants that predispose a person to criminal activity. C) Information that psychiatrists can use to predict personality and behavior. D) Information that will accurately predict the life span of an individual.
What deficiency symptom is common among plants with inadequate levels of nitrogen, magnesium, iron, zinc, or
copper? What characteristics would be seen in the plants’ leaves?
What will be an ideal response?A behavior that has evolved to aid relatives, although at personal risk, and thus increases the chance of your genes being passed on to the next generation is known as
A. operant conditioning. B. adaptive behavior. C. kin selection. D. altricial behavior. E. instinctive behavior.