How many chromosomes are present in a frog cell?
A. 42
B. 26
C. 63
D. 4
Correct Answer: B. 26
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A. 42
B. 26
C. 63
D. 4
A. A cell membrane of a cell
B. A cytoplasm of a cell
C. A central region of a cell that contains its DNA
D. A cell wall of a cell
A. Sodium oxide
B. Iron oxide
C. Silver oxide
D. Copper oxide
A. Ethane gas
B. Methane gas
C. Naphthalene gas
D. Ethanol
A. Leaves
B. Seeds
C. Flowers
D. Roots
A. Moss, Fern
B. Pine, Juniper
C. Thuja, Sago palm
D. All of these
B. Lungs
C. Heart
D. All of these