On Darwin's voyage, he observed ostriches and rheas living on grasslands on separate continents. These two types of birds are similar, but not identical. How did Darwin apply these observations? A. He tested the birds to see if each would survive in the other's environment.
B. He developed hypotheses to explain the distribution and differences of the birds.
C. He concluded that one of the birds must have evolved from the other bird.
D. He developed hypotheses to explain how each bird produced more of its own kind.

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

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.