Emperor penguins need lungs to breathe. In penguin lungs, air never stops. ... Once the air goes farther into the trachea it splits into two different directions into both lungs. To get the oxygen into the blood cells, it must come "within small distance of the penguin blood cells".
<span>I think B but not 100% sure</span>
Not only did it burn up in our atmosphere and lose mass. Scientist believe it almost hit earth that went around the orbit and broke before it entered the atmosphere and one of the pieces is the moon.
The answer that fits the blank is RED. The phytochrome refers to the pigment that are found in plants which is sensitive to light, particularly the color red of the visible spectrum. This pigment is actually blue-green in color. This pigment plays various significant roles in photo-perception among plants.
Answer:
b. calcitonin and parathyroid hormone
Explanation:
calcitonin is needed for the regulation of calcium and phosphate level in the body.
parathyroid hormone is also very important for maintaining blood calcium level.
