What is the sticky female region of a flower that is specialized for receiving pollen?
a. stamen
b. stigma
c. anther
d. ovary
e. endosperm
ANSWER: b
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Answer the following statements true (T) or false (F)
1. The most efficient plants at producing sugars under hot and arid environments maximize photorespiration. 2. Hormones regardless of whether they operate locally or at long distances must bind a receptor to elicit a cell response. 3. Auxin is a plant hormone that causes cells to shorten and allow plant growing tips to move toward the sun. 4. In terms of cell signaling, estrogen in animal cells works in a similar fashion as the plant hormone auxin via binding to intracellular receptors.
Why is Duchenne muscular dystrophy less common in females than males?
What will be an ideal response?
Identify two environmental factors that affect the germination of seeds. Then list the adaptation(s) of
seeds to deal with each environmental factor. What will be an ideal response?
If a single strand of mature messenger RNA contains 12 coding nucleotides, the protein that it will manufacture will have ___________ amino acids.
A. one B. four C. six D. twelve