During the Olestra experiment which group was the experimental group?
a. The group that received plain chips
b. All three groups.
c. None of the groups.
d. The group that received Olestra chips.
e. The group that became ill.
d
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Each of the following events actually occurs. Which case would be included in the definition of sexual reproduction?
A. The female sex cell of a flower develops into a new generation after receiving the male sex cell from the same flower. B. A female sex cell develops into a new individual without fertilization. C. Three new plants develop from three branches cut from a plant and placed in potting soil. D. Twins develop.
Flukes are divided into the groups Monogenea and Digenea. Monogenea have a posterior holdfast with hooks, clamps, and suckers, while Digenea have suckers but never hooks and clamps. Monogenea have only one host in the life cycle and usually live on gills or skin of fish and amphibians. Digenea have at least two hosts, and are named for having two reproductive states in their life cycle (an adult and intramolluscan phase).Based on this information, the blood fluke Schistosoma would be classified as
A. an endoparasite and Monogenean. B. an ectoparasite and Monogenean. C. an endoparasite and Digenean. D. an ectoparasite and Digenean.
When threatened, a cobra will rear up and spread its hood, which makes its head look larger and displays the eye spots. What kind of behavior is this?
A) A readiness to mate B) A desire to fight C) Dominance in a social group D) A submissive posture E) An aggressive display
Obligate saprobes can adapt to a living host.
Answer the following statement true (T) or false (F)