Photosynthesis uses carbon from carbon dioxide. What ultimately happens to the carbon?
1.It is released as sugar.
2.It is incorporated into the organism as tissues, energy sources, and structural components.
3.It is released as energy during cellular respiration.
4.It is released as nutrients into the soil.
2
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Why are weak chemical interactions so important in biological systems?
What will be an ideal response?
Lyell's theory of uniformity is the idea that ________
a. None of these answers b. rapid, sudden changes have changed the Earth c. gradual, repetitive changes have shaped the Earth d. lines of descent improve each generation as a result of internal drive by the organism e. catastrophic geological events have shaped the Earth
In pine, there is a dominant ____ generation.
A. sporophyte B. gametophyte C. male gametophyte D. female gametophyte
Which of the following cube-shaped objects would have the highest surface-area-to-volume ratio? A cell with a volume of
A. 10 cm3. B. 8 cm3. C. 3 cm3. D. 1 cm3.