How does reduced river connectivity affect aquatic species?
a. It helps nonnative species establish in certain ecosystems.
b. It prevents species from migrating freely.
c. It reduces water temperature.
d. It increases river volume.
e. It assists species in long migrations.
ANSWER: b
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A. by mitotic division of other white blood cells. B. from platelets. C. from chondrocytes. D. from bone marrow stem cells. E. from plasma proteins.
Which of these carries the most energy?
a. ADP b. ATP c. NADH d. NAD+
Which of the following does NOT have an exoskeleton?
A. lobsters B. spiders C. insects D. earthworms E. centipedes
Laboratory fermentation tests often include a pH indicator because many bacteria produce (O2/bases/acids) as they ferment carbohydrates.
Fill in the blank(s) with the appropriate word(s).