Which of the following methods do alkaliphiles use to survive in their environments?
A) enrich their plasma membrane with acidic compounds to attract H+ ions to their cell surface
B) enrich their plasma membrane with basic compounds to attract OH- ions to their cell surface
C) use plasma membrane lipids that are highly branched and saturated
D) build special monolayer plasma membranes
E) use proton pumps to export excess protons from the cytoplasm
Answer: A
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Describe the cortical reaction and explain its significance in the process of fertilization
What will be an ideal response?
Body parts that are similar in different lineages because they are adapted to the same environment are ____
a. homologous structures b. comparative structures c. analogous structures d. repetitive structures e. vestigial structures
Choose the letter of the best match from the following:A. birth control pillB. intrauterine deviceC. diaphragmD. foams and jelliesE. vasectomySperm destruction.
Fill in the blank(s) with the appropriate word(s).