Africanized bees __________ than European
honeybees.
a. make less honey
b. respond more quickly to perceived threats
c. are more aggressive stingers
d. are more likely to abandon their colony after
being disturbed
e. do all of these more
Answer: e
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Which organ system is the first of those listed to begin development in the human embryo?
a. nervous system b. excretory system c. reproductive system d. skeletal system e. endocrine system
What is different about the way that NADH and FADH2 donate electrons to the electron transport chain?
A. NADH is oxidized and FADH2 is reduced. B. NADH contributes its electrons to the first transmembrane complex in the electron transport chain and FADH2 contributes its electrons after the first transmembrane complex. C. More protons are transported into the intermembrane space of the mitochondria in response to one molecule of FADH2 as compared to the number of protons transported in response to one molecule of NADH. D. The electrons from NADH ultimately go on to reduce oxygen to generate water, whereas the electrons from FADH2 are used to reduce pyruvate to lactate.
Homeostatic regulation of the cardiovascular system is designed to maintain ________.
Fill in the blank(s) with the appropriate word(s).
Your body produces all the following digestive enzymes, but not all of them are produced where they are used. Which of the following is produced at a different location from where it is used?
A) salivary amylase B) pepsin C) sucrase D) lactase