Which of the following is NOT an example of parental investment?
A. A male fish holds fertilized eggs in his mouth until they hatch to protect them from predators
B. A female mammal produces milk for her offspring
C. A male praying mantis is eaten by a female during mating, and the proteins from his body are deposited into the eggs she produces after mating with him
D. A female bird sits on a nest to incubate eggs
E. A male fish guards a female after mating with her, preventing other males from mating with her
F. all of these are examples of parental investment
Answer: E. A male fish guards a female after mating with her, preventing other males from mating with her
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The result of natural selection is
A. extinction. B. catastrophism. C. adaptation. D. synthesis. E. behavioral change.
WHICH OF THE FOLLOWING IS A POPULATION?
What will be an ideal response?
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.
Phylogeny is deciphered to build phylogenetic trees using
A. the fossil record B. homology C. molecular data D. all of the choices