Hi there!
Your answer would be
C. Observation, hypothesis, experiment, and conclusion.
Hope this helped and please give brainliest!!
<span>As the pollen tube penetrates the ovule, it releases two sperm cells. As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization.</span>
The tilt of the Earth is what causes the seasons...In the summer, the northern pole is pointed closer to the Sun giving the northern hemisphere more daylight hours. The opposite is true during the winter.
Answer: its CO2 for the first one
Explanation:
When animals eat food, they get carbon in the form of carbohydrates and proteins. ... The oxygen (O2) from the CO2 molecule was sent back into the atmosphere; the carbon atom (C) was detached and used to make a molecule of sugar.
