What plants may be planted to increase the amount
of nitrogen in the soil?
a. clover
b. alfalfa
c. soybeans
d. peanuts
e. any of these
Answer: e
Biology & Microbiology
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The only protists that have two types of nuclei in each cell are the ____
a. Archaeplastida b. dinoflagellates c. ciliates d. Excavates e. amoebozoans
Biology & Microbiology
Groundwater that is trapped between two layers of impermeable rock is called a/an:
A) unconfined well. B) confined aquifer. C) unconfined aquifer. D) confined well.
Biology & Microbiology
Which of the following interactions is the molecular basis of muscle contraction?
A. Myosin and thick filaments. B. Sarcomeres and T tubules. C. Myosin and thin filaments. D. Troponin and tropomyosin
Biology & Microbiology
Which of the following are molecular mediators of inflammation?
A) chemokines B) cytokines C) erythrocytes D) both chemokines and cytokines
Biology & Microbiology