<span>The ventricles are the part of the heart that are responsible for the pumping action to move blood throughout the body. Therefore, the muscles in the ventricles are much larger and thicker to do their job properly. The atrium only has to pump blood through an open valve (the tricuspid valve) into the right ventricle. There is much less resistance to this flow of blood so much less muscle is needed. </span>
Answer:
1 and 4
Explanation:
simply due to process if an elinination so if u get another answer thats different and has an explanation believe them instead
Answer:
Add Compost. Compost is decomposed organic matter, and it is the best thing you use to improve the health of garden soil.
Get a Soil Test.
Mulch the Soil Surface.
Prevent Soil Compaction.
Rotate Crops Each Year.
Grow Cover Crops.
Add Aged Animal Manure.
Explanation: Soil fertility is the ability of soil to sustain plant growth and optimize crop yield. This can be enhanced through organic and inorganic fertilizers to the soil. Nuclear techniques provide data that enhances soil fertility and crop production while minimizing the environmental impact.
The decrease in the number of eagles made them more vulnerable to extinction because people were hunting them and they couldn't repopulate as fast as they were being killed.
