Which of the following is a characteristic of
the plasma membrane?
a. it controls the contents of the cell
b. the main lipid of a cell membrane is
cholesterol
c. carbohydrates carry out most of the cell’s
dynamic functions
d. it encloses a jellylike mixture called a
cytoplastic reticulum
e. all of these are characteristics of plasma
membranes
A
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All skeletal muscle fibers are _____
A) smooth and under involuntary control B) smooth and operate independently of other skeletal muscle fibers C) striated and under voluntary control D) smooth and under voluntary control E) striated and electrically coupled to neighboring fibers
The bark of a woody stem contains:
1.xylem
2.parenchyma
3.vascular cambium
4.phloem
A symbiotic relationship in which both species benefit is called ________.
Fill in the blank(s) with the appropriate word(s).
Heidi injured a ventral root below her ribs. What problem will she likely experience?
A) She will have trouble walking. B) She will become deaf. C) She will lose all sense of touch in her abdomen. D) She will not be able to close her eyes.