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Questions in biology

[Done] What part of the cell functions as factories to produce proteins?

[Done] What do the epidermis and the dermis have in common?

[Done] What is the biggest cause of extinction today? A. pollution B. exotic species C. global warming D. habitat loss

[Done] What kind of symbiotic relationship is shown between Dori and Marlin?

[Done] What creates more friction: aluminum foil, wax paper, or plastic wrap?

[Done] Two parents with dimples have a child with no dimples. The allele [tex]D[/tex] for dimples is dominant. What are the possible genotypes of the parents? I. [tex]DD[/tex] and [tex]Dd[/tex] II. [tex]Dd[/tex] and [tex]Dd[/tex] III. [tex]DD[/tex] and [tex]dd[/tex] A. I only B. II only C. I or II D. II or III E. I, II, or III

[Done] Which term describes the example below? A child with a widow’s peak has a mother who is homozygous dominant for a widow’s peak and a father who is homozygous dominant for a widow’s peak. A. homozygous dominant B. homozygous recessive C. heterozygous D. female E. male

[Done] Describe what happens when you step on a pin. (This is about the nervous system)

[Done] An animal with a coelom, jointed appendages, and metameric segmentation would be classified in the phylum: A. Mollusca B. Cnidaria C. Platyhelminthes D. Arthropoda E. Chordata

[Done] Gradualism is a pattern of evolution in which: A. A single species evolves into several closely related species. B. Several distantly related species develop similarities. C. A species evolves at a slow, steady pace. D. A species has periods of little evolution interrupted by periods of rapid evolution. Mass extinction would most likely result from which of the following events? A. A disease kills off a single species of predator within an ecosystem. B. A wildfire burns a national park. C. Global temperatures drop several degrees after several massive volcanic eruptions. D. A massive earthquake strikes North America.