Ariations within a species are an important part of Charles Darwin's theory of evolution. Which example can be explained by
dividual variation?
The food source in a lake is not enough to support the bass population, but it can support the trout.
A population of brown bears has doubled in the past 10 years as its habitat size has increased.
Owls and foxes compete fiercely againsteach other for small rodents in their habitat.
Brightly colored cardinals are better able to survive and to reproduce than darker cardinals.

the eggs of the insects should be the first thing collected at the scene.

false

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.