A sterile hybrid plant can form a fertile new species if its chromosomes are doubled. This is referred
to as
a. allopatric speciation
b. cladogenesis
c. a hybrid zone
d. anagenesis
e. sympatric speciation
E
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Which of the following ideas was most commonly held in the eighteenth century?
A. the fixity of species B. genetic change through mutation C. changes in a species through adaptation to the environment D. evolution by natural selection over time
Finger-like projections that assist in gathering released eggs into the oviducts after ovulation are called the __________
Fill in the blank(s) with the appropriate word(s)
Which of the following is a normally correct base pairing in transcription?
A. (DNA)A...U(mRNA) B. (mRNA)C...G(tRNA) C. (DNA)U...A(mRNA) D. (DNA)A...T(tRNA)
Susan ran a beef slaughterhouse. At the end of a very long day in which many cattle were processed, she found that there were several pounds of thyroid gland, unsalable as such. Therefore, she ordered the glands be ground into hamburger meat. If someone
were to buy, cook, and eat all of that thyroid-burger, what serious outcome would you predict for that customer? What will be an ideal response?