The building blocks of nucleic acids are
a. amino acids.
b. nucleotides.
c. pentose sugars.
d. phosphate groups.
e. nitrogenous bases.
Answer: b
Biology & Microbiology
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Tolerance is the acquired ability to make an adaptive immune response directed to self-antigens
Indicate whether the statement is true or false.
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At a low sugar region of a plant, sugars move from ____ into ____
a. sieve elements; source cells b. sieve elements; sink cells c. xylem; phloem d. phloem; source cells e. the low pressure phloem; the high pressure plant tissue
Biology & Microbiology
What adaptations have evolved in birds to assist them in flight?
What will be an ideal response?
Biology & Microbiology
The simplest sugars are called ____________________, and two of these sugars linked together form a(n)
____________________. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology