Chemicals detected by the nose must
A) stimulate the cones.
B) cause bending of hair cells in the upper nasal cavity.
C) dissolve in mucus in the nasal cavity.
D) bind to taste buds.
E) first enter the mouth.
C
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Heritability refers to
A) the genetic contribution to a phenotype in a population at a particular time. B) the genetic contribution to the variability of a phenotype in a population at a particular time. C) the number of genes contributing to a trait in a population. D) the degree to which offspring resemble parents.
Which subatomic particles are found outside the nucleus of an atom?
a. Neutrons b. Protons c. Electrons d. Photons
The genetic code is made up of units (codons), each of which consists of how many nucleotides?
a. 2 b. 3 c. 5 d. 6 e. 12
Changes due to developmental plasticity are reversible
Indicate whether the statement is true or false