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Questions in biology

[Done] What are two human uses for mosses?

[Done] Indicate which pattern of evolution is shown by the many species of finches on the Galápagos Islands.

[Done] Which of the following can fix nitrogen? A. Human industrial processes B. Lightning C. Certain bacterial species D. All of the above

[Done] It is likely that Earth could lose half of its species in the next ____________ years. A. 50 B. 100 C. 500 D. 1000

[Done] In minks, the gene for brown fur (B) is dominant to the gene for silver fur (b). Which set of genotypes represents a cross that could produce offspring with silver fur from parents that both have brown fur? A. Bb × Bb B. BB × Bb C. BB × bb D. Bb × bb E. none of the above

[Done] A boy jumps into a cold swimming pool, and his body temperature goes down. His muscles, blood vessels, and nervous system work together to restore his body temperature. Which term best describes this process? A. homeostasis B. hypothermia C. reflex D. respiration

[Done] Which of the following is most important in classifying two groups of bears into the same genus? A. similar diets B. similar genes C. similar habitat D. similar body size

[Done] Which of the following nutrient cycles has its largest reservoir in the atmosphere? A. Carbon cycle B. Nitrogen cycle C. Potassium cycle D. Phosphorus cycle E. Water cycle

[Done] A pea plant is heterozygous for height (Tt). Which allele will be carried by a pollen grain produced by the plant? A. T only B. t only C. T and t D. T or t

[Done] Name two things found in a plant cell that are not found in an animal cell.