Answer:
If you're on EDGE 2021, it's NOT D.
I think it's A.
Proteins are the compounds that do most of the work in the cell.
Answer: Proteins
States of matter. thats the answer ma boiii
Answer:
The correct answer will be option A.
Explanation:
The atrioventricular valve is one of the four valves present in the heart the function of which is to stop the back flow of the blood from the ventricles to the atrium.
These valve opens and closes in response to the change in the pressure of the blood in atrium and ventricles. The valve opens when blood is pumped form the atrium to ventricles which causes the papillary muscles to relax while the valve closes when the ventricles push the blood to the arteries. This causes the papillary muscle to contract which causes the chordate tendineae to create tension ad close the valve.
Thus, option A is the correct answer.
Answer:
The tropical rainforest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity (species richness). Rainfall: The word “rainforest” implies that these are the some of the world's wettest ecosystems.