A(n) ____ is an observed consequence of global climate change
a. more earthquakes
b. acid rain
c. increase in the ozone hole
d. decrease in the ozone layer
e. rise in sea level
ANSWER: e
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To restart a heart, rescuers use
a. CPR. b. a defibrillator. c. CPR and a defibrillator. d. serotonin injections. e. all of these.
Wildlife biologists use methods which in order to control the brown tree snake population on Guam.
A. anesthetize the snakes with acetominophen in rats B. All of the answer choices are correct. C. capture and kill the snakes, increasing death rates D. release sterilized males to compete with wild fertile males E. use specially trained dogs to prevent spread to other islands
Which statement is true?
A) Hormones travel via specific pathways to specific cells, while electrical signals travel through the blood to all areas of the body. B) Effects of hormones last for brief periods of time, while effects of electrical signals last for long periods of time. C) It takes longer for hormones to be released into the bloodstream and be taken to target cells than it does for electrical signals to be transmitted. D) Hormones have a direct connection with target cells, while electrical signals do not.
The ________ of a population is the time it takes for the cells to double in number
A) binary fission B) exponential growth C) generation time D) arithmetic growth E) log phase