Which type of plant tissue is specialized for conducting fluids?
a. dermal tissue
b. meristem
c. protoderm
d. vascular tissue
Ans: d. vascular tissue
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Charles Darwin noted that the human lineage probably arose out of Africa. Which of the following was most likely the reason behind his hypothesis?
A. Africa has warmer temperatures, which allows for greater diversity. B. Gorillas and chimpanzees, which are the primates most closely related to humans, only live in Africa. C. Africa was the first land mass that was suitable for life. D. This was before the advent of molecular analysis, so Charles Darwin was incorrect. E. None of the answer options are correct.
The minimum sterilizing conditions in a steam autoclave are
A. 160°C for 2 hours. B. 71.6°C for 15 seconds. C. 121°C at 15 psi for 15 minutes. D. 100°C for 30 minutes. E. 63°C for 30 minutes.
Sudoriferous glands produce ________.
a) sweat b) lipids c) sebum d) milk
Infected body cells can self-identify for destruction by the immune system by:
A) becoming dendritic cells. B) releasing histamine. C) reshaping their membranes into a pattern that B cells recognize. D) secreting hormones that stimulate macrophages. E) placing fragments of the infectious agent on their surfaces.