Despite his insights, Erasmus Darwin came up short of a full-blown theory of evolution by natural selection because:
a. he failed to connect the struggle for existence to the evolutionary changes that would result from such a struggle.
b. he believed in Lamarck's theory of the inheritance of acquired characteristics.
c. Both of the above.
d. None of the above.
C
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The appendix is a vestigial structure in humans
Indicate whether the statement is true or false.
Which region is part of the hindbrain in humans?
1.Telencephalon 2.Cerebrum 3.Thalamus 4.Hypothalamus 5.Medulla oblongata
Which of the following store most chemical energy per unit weight?
a. Carbohydrates b. Lipids c. Proteins d. Nucleic acids
When people have health issues associated with their kidneys doctors may prescribe diuretic drugs. Why would someone with high blood pressure be prescribed these drugs?
A. Diuretic drugs decrease urine flow and the kidney does not have to work as hard. B. Diuretic drugs increase urine flow and salt loss and salt was bad for the heart. C. Diuretic drugs decrease urine flow and the more fluid and watery blood is easier to pump. D. Diuretic drugs increase urine flow and the loss of nitrogenous wastes helps the heart. E. Diuretic drugs increase urine flow and decrease the blood volume that must be pumped.