What feature, among living animals, is completely unique to birds?
a. Laying amniotic eggs
b. Four chambered heart
c. The ability to fly
d. Feathers
e. Making a nest for rearing the offspring
d
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Plants often do not survive indoors because they lack adequate amounts of: (Check all that apply)
_____ Water _____ Minerals _____ Light _____ carbon dioxide
If your mother has cystic fibrosis, which is caused by a recessive allele, the odds of you having cystic fibrosis are
____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. impossible to determine without knowing your father’s genotype
Two of Darwin's finches display a character displacement when they occur as sympatric species. Which of the statements correctly interprets the graph?
A. Both species have the same size beak on Santa Maria Island.
B. Both species have the same size beaks on Daphne Major.
C. Both species have the same size beaks on Los Hermanos Island.
D. The two species have different beak sizes when they occur on the same island.
E. The two species feed on different food resources; one feeds on seeds while the other feeds on insects.
After mitosis, the chromosome number of a daughter cell is __________ parent cell's.
A) the same as B) one-half C) rearranged compared to D) doubled compared to