Soil is a mixture of broken rocks and minerals, living organisms, and decaying organic matter called humus. Humus is dark, soft and rich in nutrients. Soil also includes air and water. Organisms in the soil need air and water to survive.
Plankton
these are microscopic eukaryotic organisms the often float at the surface of the ocean
Answer:
The correct answer is - smooth muscles.
Explanation:
inside the organs, there are internal muscles present that build walls of most of the organs like the stomach, heart, blood vessels, intestines, and more hollow organs. These muscles are composed of ininvoluntary muscles.
These muscles can not be controlled as these are meant to be working on their own with the stimulus. The role of such muscles is to push or pull the various material such as blood, or food through the organs.
Thus, the correct answer is - smooth.
Enzymes and acidic juices in the stomach, which break proteins down into smaller molecules, is known as proteolytic enzyme.
Proteolytic enzyme (also known as protease) is any group of enzymes that break down the long chainlike proteins molecules into smaller molecules (peptides) and later into amino acids. In the stomach, protein digestion takes place. The three main proteolytic enzymes; pepsin (produced by the stomach), and trypsin and chymotrypsin (produced by the pancreas) breaks down proteins into polypeptides which are eventually broken down into amino acids by several exopeptidases and dipeptidases.
