Differentiate between the following terms: threatened species, endangered species, and extinct species. What will be an ideal response?
An extinct species is one that is lost forever; i.e., extinction occurs when the last member of
that species dies. An endangered species is a species that is in imminent danger of extinction
throughout all or a significant part of its range. A threatened species is a species that is likely
to become endangered in the foreseeable future.
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Which would be the most likely location to find a slime mold?
A. Swiftly running stream B. Pond C. Rotting log D. Animal gastrointestinal tract
Choanoflagellates
a. have flagellated collar cells. b. may be free-living or colonial. c. make signaling molecules and adhesion proteins. d. likely share a common ancestor with sponges. e. fit all of these descriptions.
Genes that are duplicated within a genome and later diverge in function, such as the RNASE1 and RNASE1B genes in douc langur monkeys, are described as ________
A) duplicated genes B) orthologous genes C) homologous genes D) paralogous genes E) derived genes
The size of the cerebellum in an animal correlates to:
a. the amount of communication between the ventricles and the hindbrain. b. the size of that animal. c. the intelligence of that animal. d. the complexity of muscular activity exhibited by that animal. e. the animal's ability to smell.