The 2+ in Cu2+ tells us that this atom ________.
A. has two more neutrons than protons
B. has two more electrons than protons
C. has two more protons than electrons
D. has two more electrons than neutrons
Answer: C
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Milk is a type of protein, and within mammalian cells, these proteins are transported in
spherical organelles called __________.
a. vesicles b. Golgi complexes c. lysosomes d. mitochondria
Experiments with bacteria and ____________________ offered solid evidence that deoxyribonucleic acid (DNA), not
protein, is the hereditary material.
Fill in the blank(s) with the appropriate word(s).Progression through the various phases of the cell cycle depends on fluctuating concentrations of specific proteins called ________
Fill in the blank(s) with correct word
In plants, the vascular tissue that consists of living cells that distribute sugars throughout the plant is called
A) xylem. B) phloem. C) lignin. D) pollen.