Hirudinea is the only class of annelids that contains:
A. species that are parasitic blood suckers
B. species with a segmented body
C. parapodia
D. a gizzard
E. a clitellum
A. species that are parasitic blood suckers
You might also like to view...
Leptospirosis is often contracted
A. by eating infected animals. B. by eating contaminated vegetables. C. from contaminated animal urine. D. by the respiratory route.
When caring for a victim of heat stroke or heat exhaustion, you should do all of the following except ________
a. have them lie down b. allow them to exercise if they wish c. soak them with water d. give them water to drink
Explain the concept of homeostasis using the example of how we regulate our body temperature. What will be an ideal response?
The ozone layer of Earth's atmosphere helps to filter ultraviolet radiation. As the ozone layer is depleted, more ultraviolet radiation reaches Earth's surface. This increase in ultraviolet radiation may be harmful because it can directly cause
a) photosynthesis to stop in all marine organisms b) tissue damage c) increased cooling of the atmosphere d) abnormal migration patterns in waterfowl