Answer:
D.
Explanation:
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The answer is b. An animal that relies on the digestive tract for digestion breaks down food via extracellular digestion. The digestive tract uses mechanical and chemical processes to digest the food. Extracellular digestion is a type of digestion that happens in an opening as part of a digestive system where the nutrients produced from digestion is transferred to the blood or other body fluids. The digestive tract serve as the opening.
The ATP is then used throughout the cell and through the body for all of its needs. Carbon atom starts out in photosynthesis as part of a carbon dioxide molecule. Carbon dioxide is broken down into oxygen and carbon.
The examples of positive feedback loops are as follows:
- contractions during the process of giving birth
- Blood clotting
<h3>WHAT IS POSITIVE FEEDBACK LOOP:</h3>
- Positive feedback loop is that in which a change in a given direction causes additional change in that same direction.
- The contractions during the process of giving birth is an example of positive feedback loop because the contractions further stretch the walls and continues until birthing occurs.
- Also, the clotting of blood causes the stoppage of blood flow.
Therefore, the examples of positive feedback loops are as follows:
- contractions during the process of giving birth
- Blood clotting
Learn more about positive feedback loops at: brainly.com/question/11312580
enzymes are a biological catalyst that act on molecules called substrates and converts the substrates into different molecules known as products.
a substrate is the material upon which an enzyme acts, can be lipid, protein or carbohydrates.
active site is the region of an enzyme where the substrate will bind and undergo a chemical reaction.
