True or false: a selective force (such as antibiotics) must be present for dna mutations to occur. g

After incubation, you observe that your streak-plate has heavy, uniform growth but no isolated colonies.

Explain how trees can be producers and yet the smallest trophic level in a pyramid of numbers.

Which features do sound waves have that ocean and light waves do not? Check all that apply. compressions rarefactions amplitude wavelength crests frequency speed

How does oxygen production relate to the rate of photosynthesis

What might be a hypothesis that would illustrate the relationship between mass and kinetic energy?

Which is a fossil fuel

Evolutionary history/advances from the monerans to protists to fungi

The town current population is 4790 people. Its expected to increase by 7.0% over the next 5vyears. Based on the current per capital consumption, how much land must be cleared?

W Review Active The African snail is a large snail that eats at least 500 different types of plants and is one of the top 100 invasive species in world.

Which structure of a protein is the arrangement of polypeptides? A - primary B - secondary C - tertiary D - quaternary