Answer:
A food web consists of many food chains. A food chain only follows just one path as animals find food. eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected.
Explanation:
Answer:A
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Answer:
B. Oxidation of food through the process of cellular respiration
Explanation: During cellular respiration oxygen molecules combines with glucose and forms ATP or adenosine triphosphate an energy giving molecule to sustain cellular activities.
Because of increasing in the temperature causing decrease of amount of oxygen that dissolved in water
B. From microorganisms that live in the soil.