The operculum of fishes covers the gills, protecting them from damage and predators. What additional functions does the operculum have?
What will be an ideal response?
It streamlines the body and keeps water moving over the gills.
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Extended phenotypes are.
A. Phenotypical attributes that extend far off the body, such as male peacock feathers. B. Phenotypes that tend to extend the longevity of the organism such as carapace. C. Phenotypes that are not genetically influenced, but are instead "extended" to a species through epigenetic induction due to environmental factors. D. Phenotypes that extend outside of the body such as creating structures, manipulating behavior of hosts, etc.
The oxidation of H2O releases
What will be an ideal response?
Which statement does not describe helminthic parasites?
A) All tend to have complex life cycles that can involve different host species. B) All belong to one of two groups: roundworms or flatworms. C) An important mode of transmission is ingestion of the eggs or organism from feces-contaminated food and water. D) All are hermaphroditic. E) All reproduce sexually.
The scala naturae, or scale of nature, is based on the ideas of __________.
a. Aristotle b. Darwin c. Lamarck d. Linnaeus e. Lyell