The cell that acts to relay electrical information to other nerve cells is a(n) ____
a. motor neuron
b. sensory neuron
c. integrator neuron
d. interneuron
e. glial cell
ANSWER: d
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A water molecule is an example of which type of molecule?
a. polar covalent b. nonpolar covalent c. ionic d. coordinate covalent e. network
Which one of the following is TRUE regarding bone repair?
A) Fibrocartilage degenerates where the two broken ends of the bone were once together. B) Osteoblasts convert cartilage to bone in the injured area. C) Immediately after breaking a bone, a hematoma breaks free from the injured area. D) Bones heal more quickly as individuals age. E) The repaired area of a bone is much thinner than the original bone.
The two-factor crosses performed by Mendel support the observation that
A. alleles for a given trait are distributed randomly among an individual's gametes independent of the alleles for other traits. B. the F1 generation can display phenotypes in combinations different from those seen in the P generation. C. traits that are encoded by genes on different chromosomes are never found within the same gamete. D. self-fertilization of the F1 generation will produce 100% heterozygous plants at both loci. E. the F2 generation will only display phenotypes in the same combinations as the P generation.
Accumulation of a metabolic pathway product may result in decreased activity of the pathway enzymes.
Answer the following statement true (T) or false (F)