Which of the following organisms lack a hydrostatic skeleton?
A. planarian
B. roundworms
C. hydra
D. earthworms
E. cicada
Answer: E
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Insects:
A. have a respiratory system including spiracles connecting to a trache B. generally give birth to live young. C. typically have a younger flying life stage and an older aquatic life stage after metamorphosis. D. typically mate and produce young during their larval stage.
Four of the following are associated with mushrooms. Which one is the exception?
a. Gills b. dikaryotic hyphae c. nuclear fusion d. Meiosis e. flagellated spores
Which of these factors would have the least effect on heat transfer processes in animals?
A. internal insulation such as blubber B. bone density C. difference between body temperature and ambient temperature D. external insulation such as feathers or fur E. surface area of the body
If a given plant loses 200 L of water in a day, how much of this do you expect will be lost through the cuticle?
A. 20 L B. 100 L C. 5 L D. 10 L E. 195 L