Which is a characteristic of ribbon worms and flatworms?
a. They are coelomates.
b. They are acoelomates.
c. They have two germ layers.
d. They are pseudocoelomates.
e. They have three germ layers
b
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What feature is common to all the alveolates?
a. heterotrophy b. lung-like sacs used for respiration c. bioluminescence d. complex life cycle with two hosts e. numerous small membrane-bound sacs beneath the plasma membrane
Which of the insects in Figure 31-7 is a flea?
A. 1
B. 2
C. 3
D. 5
E. 6
The pulmonary circuit specifically circulates blood ________
A) from the heart to the lungs B) from the heart to the rest of the body C) from the heart to the brain D) from the heart to the liver
Place each of the following terms with the correct statement.A. CoevolutionB. Defensive colorationC. CamouflageD. Secondary chemical compoundsE. Batesian mimicryOrganisms that possess this property are poisonous, sting, or are otherwise harmful, commonly black, yellow, and red in color.
Fill in the blank(s) with the appropriate word(s).