ASVAB ASVAB General Science Biology and Ecology 5

Question 1

Which level of biological organization is ABOVE an organism but BELOW a community?

Accepted Answer

Population

Answer

A population consists of individuals of the same species living in the same area, between the organism and community levels.

Question 2

What is the correct order of nitrogen fixation in the nitrogen cycle?

Accepted Answer

Atmosphere → soil bacteria → plants → animals

Answer

Nitrogen-fixing bacteria convert atmospheric N₂ into ammonia in the soil, which plants then absorb.

Question 3

A scientist discovers a new organism that has a cell wall but no nucleus. What kingdom does it most likely belong to?

Accepted Answer

Monera (Bacteria)

Answer

Prokaryotes like bacteria have cell walls but lack a membrane-bound nucleus, placing them in kingdom Monera.

Question 4

Which of the following is an example of a biotic factor in an ecosystem?

Accepted Answer

Predators

Answer

Biotic factors are living components of an ecosystem, such as predators, prey, and plants.

Question 5

During meiosis, how does the chromosome number in daughter cells compare to the parent cell?

Accepted Answer

It is halved

Answer

Meiosis reduces the chromosome number by half to produce haploid gametes (sperm and eggs).

ASVAB - Armed Services Vocational Aptitude Battery Practice Test