What do indirect values of biodiversity all have in common?
A. They all depend on an individual species.
B. They provide pleasure and relaxation for humans.
C. They are all pervasive benefits provided by ecosystems.
D. They all undo some harm that humans have done.
E. They are all involved with the biogeochemical cycles.
Answer: C
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Except for the regions at its tips where it is homologous to the X chromosome, genes on the Y chromosome:
A. are completely linked. B. are mostly completely linked, but a few exhibit independent assortment. C. are mostly completely linked, but a few exhibit random segregation. D. may or may not be linked; it just depends on how far apart they are from one another. E. may or may not be linked; it just depends on the individual alleles of the gene.
Which of the following is a macronutrient?
a. Boron b. Zinc c. Copper d. Calcium e. Iron
One reason angiosperms are more successful than gymnosperms is because gymnosperms lack _____
a. seeds b. megaspores c. fruits d. leaves e. wood
In the human cardiovascular system, what's the difference between the pulmonary circuit and the systemic circuit?
What will be an ideal response?