Question

some bio questions???

Answer 1

A few Biology questions.....4. Which of the following statements about enzymes is not true? (1 point)Enzymes work best at a specified pH.
All enzymes have the same shape as their substrates.
Enzymes are proteins.
The shape of an enzyme allows it to do its job.

5. Which of the following shows the correct sequence of levels from least complex to most complex? (1 point)biosphere, biome, ecosystem, community, population, organism
population, organism, ecosystem, community, biome, biosphere
community, population, organism, biome, biosphere, ecosystem
organism, population, community, ecosystem, biome, biosphere

6. Why is an organism’s niche like a person’s occupation? (1 point)An organism makes “money” by working in its niche.
A niche is a “company” that the organism has to work in.
A niche is a “factory” where organisms build things.
An organism can “make a living” and survive in its niche.

7. Which of the following occurs during the ecological succession of an ecosystem? (1 point)An ecosystem reaches a final, unchanging stage.
Animals move out of the ecosystem until succession is complete.
Living organisms modify their environment a little at a time.
Parts of communities split off to form new communities.

8. Suppose that a species of toads is introduced into a new environment in an attempt to reduce the population of insects. The toad has no natural predators in the new environment. The toad population would most likely (1 point)increase exponentially.
increase logistically.
decrease rapidly and die out.
remain the same.

9. A major factor that negatively affects biodiversity is (1 point)biological magnification.
habitat fragmentation.
contour plowing.
nonrenewable resources.

10. Which of the following is not a principle of the cell theory? (1 point)Cells are the basic units of life.
All living things are made of cells.
Very few cells are able to reproduce.
All cells are produced from existing cells.