AFNS — AFNS Biology
Introduction to Biology
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#25 Heterotrophs depend on:
A) Sunlight only
B) Other organisms for food
C) Only minerals
D) Only water
Answer: B
#26 Biodiversity refers to:
A) One species only
B) Variety of life
C) Only plants
D) Only animals
Answer: B
#27 Theory of natural selection was given by:
A) Darwin
B) Lamarck
C) Mendel
D) Pasteur
Answer: A
#28 Mendel worked on:
A) Pea plants
B) Rice
C) Wheat
D) Maize
Answer: A
#29 Unit of heredity is:
A) Gene
B) Cell wall
C) Vacuole
D) Ribosome
Answer: A
#30 DNA stands for:
A) Deoxyribonucleic acid
B) Dinitrogen acid
C) Dual nuclear acid
D) Dense nucleic atom
Answer: A
#31 RNA is generally:
A) Single stranded
B) Always double stranded
C) Never in cells
D) Only in plants
Answer: A
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