Why do oils form a significant part of the nutritional reserves in many seeds?
A. Oils help keep the embryo hydrated, allowing the seed to survive in dry habitats.
B. The oils reduce the density of the seed and allow for water dispersal.
C. Oils contain more mineral nutrients than carbohydrates.
D. Oils store twice as much energy as an equivalent mass of starch.
E. Hormones diffuse more quickly through oils.
D. Oils store twice as much energy as an equivalent mass of starch.
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Under the "business as usual" model of climate change, will temperatures change uniformly across the globe?
Examine Figure 48.7 in your text and compare the projected change in temperature in central South America and central Africa at the equator (draw an imaginary line across the globe at its widest point and examine a spot in the middle of each continent along that line). Which of the following best describes the predicted changes? A. Central South America will warm by an average of 7–8 degrees; central Africa will warm by around 3–4 degrees. B. Central South America will warm by an average of more than 8 degrees; central Africa will warm by 1–2 degrees. C. Central South America will remain about the same; central Africa will warm by 7–8 degrees. D. Central South America will warm by 2–3 degrees; central Africa will not change. E. Both central South America and central Africa will warm by 4–5 degrees.
Describe the events that convert an mRNA into a cDNA
What will be an ideal response?
Four of the five answers listed below are members of the same kingdom. Select the exception
a. Archaea b. protozoa c. charophyte d. dinoflagellate e. euglenoid
Because females carry two X chromosomes and males carry only one, females have higher levels of all products
encoded by genes on the X chromosome. a. True b. False