Plant obtain energy through photosynthesis .They are producers because they are able to obtain synthesize their food . Animals on the other hand are consumers and must obtain their energy by consuming organic matter such as plants and animals .
Food is moved through the digestive tract by a sequence of wave-like muscle contractions called peristalsis.
<h3>What is digestive tract?</h3>
- The digestive system of the human body is made up of the gastrointestinal tract and additional digestive organs (the tongue, salivary glands, pancreas, liver, and gallbladder).
- In order for food to be absorbed and incorporated into the body, it must first be broken down into smaller and smaller components during digestion.
- Cephalic, gastric, and intestine phases make up the three stages of the digestive process.
- Gastric gland secretions in reaction to the sight and smell of food start the initial stage of digestion, known as the cephalic phase.
<h3>What is peristalsis?</h3>
- Peristalsis is the contraction of the muscles. is the contraction and relaxation of radially symmetric muscles that travels anterogradely down a tube in the form of a wave.
- In the lining of the gut, a simultaneous contraction of the longitudinal muscle and relaxation of the circular muscle is followed by a coordinated contraction of involuntary circular muscles known as peristalsis.
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The properties of soil are dependent only on nonliving components.
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5. when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent
6.They are moving toward each other
7. The Nazca Plate is bounded on the west by the Pacific Plate and to the south by the Antarctic Plate through the East Pacific Rise
8.Convection currents in the mantle drive plate tectonics. Convection is the reason for ocean currents. Ocean currents result from two processes - the action of wind on the surface of the water, and from variation in water temperature that causes movement.
Both the mantle and ocean experience the heat transfer due to bulk movement of molecules within fluids such as gases and liquids, including molten rock; this is called, again, convection.
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By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition
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