AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do animals get carbon?
A
By eating plants and or other animals.
B
They absorb it from the atmosphere.
C
From the ground
D
They do not get carbon from anywhere.
Explanation: 

Detailed explanation-1: -Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.

Detailed explanation-2: -When animals eat food, they get carbon in the form of carbohydrates and proteins. In animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon.

Detailed explanation-3: -Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.

Detailed explanation-4: -Animals get carbon by eating plants or by eating other animals. Different products produce differing amounts of greenhouse gases. Common greenhouse gases include carbon dioxide, carbon monoxide and methane.

Detailed explanation-5: -Animals obtain carbon through plants. Note: The process in which the plants take up carbon dioxide, prepare food which later is consumed by animals and when both die, their remains makes up the carbon in soil and eventually goes into the atmosphere, is termed as carbon cycle.

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