Which specialization evolved in land plants to allow for reproduction in dry conditions?
A. Xylem
B. Phloem
C. Stomata
D. Roots
E. Sporophyte dominance
Answer: E
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The nitrogen in our atmosphere is only usable to us after it is converted to
A. ammonia. B. amino acids. C. fertilizer. D. nitrous oxide.
Answer the following statements true (T) or false (F)
1. When a molecule of NAD+ gains a hydrogen atom, the molecule becomes reduced. 2. Proteins and fats may be used as energy sources to drive aerobic respiration. 3. During the energy investment phase of glycolysis, glucose has a decrease in free energy. 4. The rate of photosynthesis is much greater in green light than red light.
Which of the following sugars is found in
RNA and NOT in DNA?
a. glucose b. deoxyribose c. deoxyribulose d. ribose e. ribulose
Cyclic AMP is a type of nucleotide
__________________ Indicate whether the statement is true or false.