Compare and contrast the function of the external epithelium and its derivatives in invertebrates and vertebrates. What will be an ideal response?
Concepts to Consider: The epithelium is the outer, protective covering in animals.
Invertebrates: secretion of an outer protective covering such as a cuticle or shell. Vertebrates:gives
rise to the integumentary system, including the skin. Derivatives of the skin include
scales, hair, feathers, claws, glands, and sensory receptors.
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Which of the following is NOT a public health measure used to control the transmission of disease?
A) sanitary water and waste disposal methods B) immunization C) forced quarantine D) genetic engineering
Why is the productivity poor in the deeper parts of the ocean?
What will be an ideal response?
In a population, the difference between the birth rate and the death rate is the
A. population dispersion factor. B. per capita rate of increase. C. population density determining factor. D. S-shaped population curve. E. J-shaped population curve.
A biologist discovers an algae that is marine, multicellular, lives at a depth with very little light, and is highly branched. This algae probably belongs to which group?
a. red algae b. brown algae c. green algae d. dinoflagellates e. golden algae