Answer the following statements true (T) or false (F)
1. The water cycle is primarily a chemical process, not a physical one.
2. Most evapotranspiration occurs from the sea.
3. Grasslands have a lower herbivore biomass than deserts.
4. All living organisms require phosphorus for ATP.
5. Phytoplankton consume zooplankton.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. FALSE
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How would the phenotypes of progeny differ if a trait was produced from the influence of many genes, compared to a trait caused by a single gene with two alleles and incomplete dominance?
A. They would not differ, and progeny in both would have an array of phenotypes that vary continuously across a range. B. The progeny from the single-gene cross would all be identical, whereas the manygene cross would vary continuously across a spectrum. C. The progeny from the single-gene cross would have three phenotypes, whereas the progeny of the trait caused by many genes would vary continuously across a spectrum.
Animal cells commonly have polysaccharides attached to ____ in their surface membranes
a. proteins b. nucleic acids c. lipids d. both nucleic acids and lipids e. both proteins and lipids
Although carbon dioxide contains carbon, it is not considered an "organic" compound because ____.
A. it is not found in the earth's crust B. it is not present in living cells C. the carbon atom is not bonded to at least one hydrogen atom D. the carbons are not in chains or rings E. it is too small
All the offspring of a cross between a red-flowered plant and a white-flowered plant have pink flowers. This means that the allele for red flowers is ________ to the allele for white flowers
A) dominant B) codominant C) incompletely dominant D) recessive