________ is to xylem as ________ is to phloem
A) Sclerenchyma cell; collenchyma cell
B) Apical meristem; vascular cambium
C) Vessel element; sieve-tube member
D) Cortex; pith
E) Vascular cambium; cork cambium
Answer: C
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Energetics: Lecture Summary
What will be an ideal response?
A typical human yawn lasts for about six seconds and once initiated, is nearly impossible to stop. Although there are many hypotheses for why we yawn, it is accepted that yawning is contagious - when we see someone else yawn, we often find ourselves yawning as well. This happens across all cultures and even in infants! In this case, the yawn an individual observes is ________, while their own yawn is ________.
A. a sign stimulus; a fixed action pattern B. reflex response; learned behavior C. an association; a conditioned response D. innate behavior; habituation
Why are scientists interested in the related forms of HIV found in other animals?
A. Scientists are more interested in non-human animals than humans. B. Humans are resistant to non-human forms of HIV. C. Non-human forms of HIV are more dangerous. D. Other animals are able to live a normal life with the virus.
Which of the following medications is/are specific treatments for infection with Mycobacterium tuberculosis?
A. methicillin B. isoniazid C. vancomycin D. clindamycin E. methicillin and clindamycin