Decomposition reactions are commonly ________ reactions.
A. endothermic
B. exchange
C. exothermic
D. anabolic
E. dehydration
Answer: C
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A mutant of Rhizobium leguminosarum is able to survive and reproduce in the laboratory outside of plant roots, but can no longer initiate root nodule formation. What type of genes are most likely mutated in this mutant?
A) rhz genes B) myc genes C) nif genes D) nod genes
A recent study of SINEs in whales and other mammals generated results that show that whales are
derived from a common ancestor with
a. pigs and camels. b. dogs and cats. c. ruminants and hippos. d. sharks and rays. e. elephants and horses.
Emphysema is caused by destruction of the walls between alveoli, leading to hyperinflation of the lungs. Which of the following would occur in the lungs of someone with emphysema?
A. decreased uptake of carbon dioxide B. decreased uptake of glucose C. decreased uptake of oxygen D. decreased rate of respiration E. decreased heart rate
The type of tissue that makes up the sweat glands, salivary glands, and endocrine glands is ________
Fill in the blank(s) with correct word