Praxis II Biology General Science Test Questions

1. What is the name for the ability to maintain consistent internal conditions despite external changes?

A. homeostasis
B. mutation
C. heterogeneity
D. spontaneous combustion

2. What is another name for the number of protons in the nucleus of an atom?

A. molarity
B. atomic mass
C. atomic number
D. atomic significance

3. Which of the following substances is used by plants for long-term energy storage?

A. glucose
B. starch
C. cellulose
D. hemoglobin

4. What is the name for the cellular processes that allow an organism to generate sufficient energy and nutrients to sustain life?

A. homeostasis
B. devolution
C. collusion
D. metabolism

5. What provides the energy for photosynthesis?

A. soil
B. light
C. heat
D. animal waste

6. What is the name of the chromosomal mutation in which gametes have more than 2 full sets of chromosomes?

A. deletion
B. translocation
C. inversion
D. polyploidy

7. Which section of the marine biome receives no sunlight?

A. littoral
B. neritic
C. abyssal
D. pelagic

8. Which of the following is NOT a characteristic of reptiles?

A. they undergo metamorphosis
B. they are covered with scales
C. they are ectothermic
D. they hatch from amniotic eggs

9. Which part of a eukaryotic cell is responsible for aerobic respiration?

A. nucleus
B. cell membrane
C. mitochondria
D. lysosome

10. What is another name for a random change in allele frequency?

A. mutation
B. deletion
C. gene flow
D. genetic drift