The answer will be B. It is common sense
Answer:
True
Explanation:
In phase-contrast objective and a phase contrast optical systems is equipped with Light microscope .
Phase contrast microscope is used to differentiate unstained structures in a cell that differ in refractive indices and thickness. Thus it is usefull for examining living unstained organisms.
Light that passed through materials of different refractive index and/or thickness will undergo a change in Phase. The difference in phase or wave front irregularities cause variation in brightness of the structures.
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The Predator from an Ethiopian Highlands ecosystem is the Wolf. The Wolf is
regarded as a Carnivore and it gets its food from preys through Predation.
<h3>What is a Carnivore?</h3>
Carnivores refer to animals which feed on flesh . Carnivores are mainly
secondary or tertiary consumers in the ecosystem.
They prey on herbivores such as
The prey animal can be classified as Herbivores in terms of feeding
relationships. Herbivores feed on primary producers known as plants.
REad more about Predation here brainly.com/question/13148843
Answer:
Blood cells are a lot smaller than nerve cells and have a disc-shaped structure, both great traits for moving quickly through small spaces. Their disc shape also provides them with a big surface where lots of oxygen can enter the cell.
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