A pine tree is a ____
a. flowering plant
b. seedless plant
c. sporophyte
d. bryophyte
e. gametophyte
ANSWER: c
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A cross-reaction is an interaction between an antibody or TCR and
A) a heterologous antigen. B) a homologous antigen. C) either a heterologous or homologous antigen. D) None of these are correct.
The unit of measure usually used to describe bacterial size is:
A) millimeters. B) micrometers. C) nanometers. D) angstroms.
Companies in which of the following categories entirely own all of their own manufacturing facilities and do not outsource?
A) car industry (like Toyota). B) clothing industry (like Benetton). C) shoe industry (like Nike). D) retail sales (like Wal-Mart). E) None — they all outsource a lot.
If the chromosome number were not halved when gametes are produced, what would be the result of fertilization?
A) The zygote would undergo meiosis again to halve the number of chromosomes. B) The zygote would have double the number of chromosomes as the parents. C) They zygote would have the same number of chromosomes as the parents. D) The zygote would have half the number of chromosomes as the parents.