Butterflies are diploid organisms. In these animals, the sex of an individual is determined by Z and W chromosomes. Use
this information to answer the following question.
Which chromosomes are carried by a normal female butterfly?
a. ZO
b. ZW
c. WW
d. WO
e. ZWW
ANSWER: b
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Glycolysis results in the partial oxidation of glucose to pyruvate. This means that:
What will be an ideal response?
If the amount of sodium suddenly increases in the blood, which of the following would occur?
A. Blood osmolarity would increase. B. Blood aldosterone levels would decline. C. Blood antidiuretic hormone would decline. D. Both blood osmolarity would increase and aldosterone levels would decline. E. Both blood osmolarity would increase and antidiuretic hormone levels would decline.
How do the muscles in your arm extend your arm outward?
A. The muscles in your arm push on the bones, causing your arm to extend. B. The muscles in your arm relax, and the tendons pull the arm straight. C. The top half of your bicep wraps around underneath the elbow like a rope over a pulley. When it contracts, the arm is pulled out straight. D. Some muscles in your arm relax, and others contract, pulling the arm straight.
Although extinction is a natural process and is ongoing, it is likely we are in a time of ____, an event in which many
different kinds of organisms become extinct in a relatively short period.
a. mass extinction b. genetic mutation c. geologic catastrophe d. loss of megafauna e. birth of new species