Simply put, the respiratory system provides oxygen and other necessary gases for cellular respiration and other cellular processes that take place in the circulatory system and beyond, the circulatory system then passes the wasted created by these processes back to the respiratory system which then expels them from the body.<span />
I have no clue, there is nothing else here to support your question.
Organic compound living things use for energy can be classified into a larger group called
Gross production is going to be all the production combined while net production is the gross production - respiration.
Answer:
The correct answer is Ovule
Explanation:
The evolution of the seed is a very important step of evolution in land plants. The evolution of the seed enable plants to grow away from the very moist environments. That is why gymnosperms soon became the dominant plants. Gymnosperms and angiosperms both have ovule whcih is after fertilization becomes seed. The ovule in the gymnosperm is naked and not enclosed in the fruit, whereas in the angiosperms seeds are enclosed in the fruits.