Explanation:
Uranium- 238 - lead 206 dating
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:
atoms
Explanation:
Atoms are the building blocks of elements.
<em>The technique of lowering the cover slip at an angle is used to;</em>
B. Reduce the formation of air bubbles
<u>It is essential that the technique of lowering the cover slip at an angle is used to put a cover slip at that angle and to lower it onto the specimen to avoid creating air bubbles which would interfere with the view.</u>