A unique feature of diatom cells is that they are enclosed within a cell wall made of silica<span> (hydrated silicon dioxide) called a </span><span>frustule.</span>
Answer:
1-reactants 2=products 3=catalyst 4=activation energy 5=enzymes
Explanation:
I would say C. Among all other options, C is the best choice.
The right answer is competitive exclusion principle.
The concept of competitive exclusion states that populations of two species with identical ecological requirements, that is, exploiting a single limiting resource, can not coexist indefinitely in a stable and homogeneous environment, the most competitive of the two species ending more or less long term by eliminating the other.
This principle amounts to saying that two species can not share the same ecological niche (set of ecological requirements).
Answer: Weather
Explanation: Weather is predicted by a long term trend..
