I think it's called the Acrosome
A or the balance between organic matter and mineral matter
<span>A person is able to squeeze a clothespin more times if they exercise beforehand because many body systems have been activated during the prior exercise. The respiratory system is activated providing increased oxygen to brain and other muscles. The circulatory system is activated to move blood from lungs and brain to the proper muscles. The brain has been activated to a mechanical task such as muscle movement.</span>
Answer:
Rivers often start from the mountain streams and contain high amounts of oxygen. Rivers and streams grow larger as these waters merge. Rivers pick up sediments from the land as they flow. Lakes support many varieties of organisms, including plants in shallow, open water and wetlands. In shallow water near shore, plankton is covered in water all or some of the time and are found along the edge of lakes and the floodplains of rivers. A deer is nibbling moss on rocks beside a river. Rivers are a major source of water for a variety of animals and plants.
Keywords
- Mountain streams
- Oxygen
- Merge
- Sediments
- Plants
- Wetlands
- Plankton
Explanation:
Freshwater ecosystems are of great importance for the diversity of plants and animals; they are also of the utmost importance for people as they are used in various ways. There are differences between freshwater ecosystems and marine ecosystems; the latter cantains a large number of salts, while the freshwater ecosystem does not provide.
Freshwater ecosystems are made up of rivers, lakes, streams, among others.
<em>I hope this information can help you.</em>
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