Receptors are made from membrane-bound polyribosomes.
a. true
b. false
Ans: a. true
Biology & Microbiology
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One of the most important buffer pairs in blood is carbonic acid and bicarbonate because they regulate the pH of blood by absorbing and releasing hydrogen ions as needed
Indicate whether the statement is true or false
Biology & Microbiology
Figure 55-1 represents:
a. a fairly simple food web.
b. a fairly simple food chain.
c. a pyramid of biomass.
d. a pyramid of energy.
e. a pyramid of numbers.
Biology & Microbiology
When the proton and electron number are unequal, the atom or molecule _____
a. gains or loses a proton b. forms a covalent bond with another atom c. is an ion b. becomes part of a molecule
Biology & Microbiology
Most neurons have formed by the ____, allowing reflexive movements.
A. first trimester B. fourth month C. third trimester D. ninth month E. seventh month
Biology & Microbiology