Answer:
Animals and humans depend on plants for many things, and without plants, there could be no life on Earth.
Explanation:
1. Plants are the primary producers. They are the only organisms that can make their own food. Animals, who are incapable of making their own food, depend on plants for their supply of food.
2.The oxygen that animals breathe comes from plants. Through photosynthesis, plants take energy from the sun, carbon dioxide from the air, and water and minerals from the soil. They then give off water and oxygen. Animals then use oxygen process called respiration. Respiration is the process used by organisms to release energy from food, and carbon dioxide is given off.
3.Plants also provide habitat for many species of animals. The plants provide food, shelter from weather (rain, sun), nesting place, sleeping ground and hideout from predators.
For example: Different animals live in different parts of the rainforest. Scientists divide the rainforest into zones based on the living environment.
<h3><u>Answer;</u></h3>
circulatory; excretory
<h3><u>Explanation;</u></h3>
- Circulatory system is an organ system that is responsible for transport of nutrients to all the body tissues. Blood circulates and transports nutrient such as electrolytes, amino acids and oxygen, carbon dioxide, hormones, and blood cells to and from the body cells to provide nourishment.
- The excretory system is responsible for the removal of waste products such as urea, uric acid, and creatinine from the blood and passing it out of the body as urine.
- The blood carries the waste products to the kidneys where the wastes such as urea, uric acid among other material are removed from the body.
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90%, it looses 10% is the energy/heat is passed.