Given the plant species' name Claytonia virginica, what might you surmise about it?
a. It was named in honor of somebody named Clayton and was found it in Virginia.
b. It grows on clay soils in virgin forests.
c. It was described and named by someone named Clayton
d. It is related to Ostrya virginiana.
e. Absolutely nothing.
A
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a. the presence of memory cells b. the presence of antibodies that remain in the body after a first-time infection c. the activity of killer T-cells d. antibodies introduced when someone receives a vaccination
In agriculture, the use of GMOs is regulated by
a. the FDA b. the AHA c. Greenpeace d. the USDA e. the NIH
Which of the following types of molecule is secreted by the human brain and acts as a natural pain killer?
1.catecholamine 2.endorphin 3.norepinephrine 4.serotonin
Rich sources of stored energy that are dissolvable in organic solvents are
a. carbohydrates. b. proteins. c. glucose. d. lipids.