In the cycling of energy and carbon through living things, plants and some other organisms use CO2 to make carbon-containing molecules, while other organisms break down those molecules and release CO2. During this process, CO2 is produced during ________
and used during ________.
A) cellular respiration; photosynthesis and cellular respiration
B) photosynthesis; cellular respiration
C) cellular respiration; photosynthesis
D) cellular respiration; cellular respiration
E) photosynthesis; photosynthesis
Answer: C
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Which of the following occurs during exhalation?
A. None of the answer options is correct. B. Negative pressure in the lungs increases. C. The diaphragm contracts and flattens out. D. Intercostal muscles elevate the ribs. E. The volume of the thoracic cavity increases.
In some societies, the birth of a deformed child is regarded as a sign of impending war or famine
a. True b. False Indicate whether the statement is true or false
. In 2015, malaria caused over 400,000 deaths, mostly in African children. It remains a global health threat. Which protist is responsible for malaria?
a. Anophele gambiae b. Trypanosoma brucei c. Plasmodium falciparum d. Phytophthora infestans
In the early years of the twentieth century, ____ proposed that some genetic disorders and abnormalities of
metabolism are related. a. Sir Archibald Garrod b. Francis Crick c. Linus Pauling d. Linda Bartoshuk e. Gregor Mendel