Blood, a fluid connective tissue, provides a transport system within our body for oxygen and other important substances. Cartilage provides strong support and connection for our skeletal framework. And the function of bones is to support and protect soft tissues and organs in our body.
The answer is D. Phosphorus and nitrogen
The three main elements are C, H and O. These two are elements other macro-molecules may not have
What reaction ?
I know endothermic absorbs energy while exothermic releases energy.
Or you could be talking about photosynthesis or cellular respiration.
Answer:
7: The earth's spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the earth's axis points towards the sun
8: Earth without a tilt would be stratified into climate bands that would get progressively colder as you moved away from the equator.
Explanation:
