Besides being selectively permeable and regulating transport the cell membrane is also involved in
A) secretion.
B) storage of wastes.
C) storage of DNA.
D) Gram stain reactions.
Ans: A) secretion.
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The vascular bundles of eudicots separate the
ground tissue into two zones. Which of the following correctly describes the arrangement of these zones?
a. outermost xylem >>> phloem >>> pith >>> cortex b. outermost phloem >>> xylem >>> pith >>> cortex c. outermost cortex >>> phloem >>> xylem >>> pith d. outermost pith >>> phloem >>> xylem >>> cortex e. outermost cortex >>> xylem >>> phloem >>> pith
In men, ______ stimulates secretion of testosterone by the ______ cells.
A. LH/pituitary B. LH/interstitial C. FSH/pituitary D. FSH/interstitial
Suppose that in the use of polynucleotide phosphorylase, nucleotides A and C are added in a ratio of 1A:5C. What is the probability that an AAA sequence will occur?
What will be an ideal response?
The primary source of Earth's energy is the sun
Indicate whether the statement is true or false