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Answer:
Atmosphere, plant, animals, fossil fuels.
Explanation:
Carbon Is the essential elements needed for life.
Carbon cycle is the movement of carbon from the atmosphere to the Earth.
Carbon move in the carbon cycle and start from the atmosphere.
In the atmosphere, carbon react with oxygen and it is inform of carbon dioxide. Plants use the carbondioxide along with water,and uses light energy from the sun to produce carbohydrates through a process of photosynthesis.
Animals get carbon from plants after consuming plants.
During respiration, carbon atoms are released to the atmosphere.
Some human activities like burning of fossil fuels releases carbon to the atmosphere.
Answer:
a & c.
Explanation:
small local populations depend on a specific food source. If the food source is depleted because of the existing populus, chances are, there will be no reproduction. If the populus, does not look beyond their boundaries for food, the species will die.
Answer:
Too Much Growth Hormone in a Child: Causes and Effects
Growth hormones are important influences on a child’s height and development. While many children are shorter or taller than others due to genetics, some children may have a growth disorder.
Growth disorders affect the speed at which a child develops. Height, weight, and sexual development are just a few features which can be affected. Diseases or problems with the pituitary gland are the leading causes of growth disorders.
The pituitary gland is responsible for producing growth hormones. Too few can lead to poor growth in children, while too many can lead to a condition called gigantism.
Answer:
The left side of the heart receives oxygenated blood from the pulmonary vein and pumps it into the aorta, while the right side of the heart receives deoxygenated blood from the vena cava and pumps it into the pulmonary vein. The pulmonary vein and aorta also have valves connecting them to their respective ventricle.
Explanation:
