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 male butterfly?
a. ZO
b. ZW
c. WW
d. WO
e. ZWW
ANSWER: c
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The tube feet of sea stars are used primarily for ____
a. excretion of excess water b. locomotion c. reproduction d. circulation e. sensation
The guard cells that surround stomata are specialized
a. endodermal cells. b. parenchyma cells. c. mesophyll cells. d. collenchyma cells. e. cortex cells.
The addition of a competitive inhibitor slows down a particular reaction. What could be done to increase the rate of the reaction, even in the presence of the inhibitor?
A) Add more inhibitor. B) Lower the temperature of the reaction. C) Add a coenzyme. D) Add more substrate. E) Allow the reaction to reach equilibrium.
Which of the following carry impulses toward the cell body of a neuron?
Axons Dendrites Glial cells Schwann cells