Specific types of lipids assemble into defined areas of a biological membrane referred to as:
A. sphingopatches.
B. lipid rafts.
C. biomembrane aggregation regions (BARs).
D. plaques.
E. cholesterol plugs.
Answer Key: B
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Which of the following characteristics are shared by all living organisms?
I. hereditary information is passed to offspring II. adaptation to environmental change III. requirement for nutrients IV. DNA housed in a nucleus
a. I and II b. I and III c. II and III d. I, II, and III e. I, II, III, and IV
What is one mechanism through which increased density may cause infant mortality in mammals?
A) reduced social contact causes stress B) reduced seed bank causes a decrease of feed for infants C) increased stress increases infant size D) high stress environments may reduce lactation
Populations of roses that have different gene frequencies from one another are
A. clones. B. hybrids. C. varieties. D. communities.
The Calvin cycle is only capable of fixing carbon dioxide in the dark.
Answer the following statement true (T) or false (F)