A 1. An amoeba is a unicellular organism. 2. When a human steps out into the cold air, the body begins to shiver in order to keep its temperature at 98.6 degrees Fahrenheit. 3. Green plants produce their own food through the process of photosynthesis. 4. An adult hydra is producing its offspring through budding, 5. The roots of a plant grow towards a source of ground water. 6. Over three years, Tim's height has increased from 5'4" to 5'11". 7. A pill bug eats a carrot. 8. A baby songbird hatches from its egg with both parent songbirds watching. 9. A tulip opens up in the morning at sunrise and closes up in the evening at sunset. 10. Identical twins have 99.999% of the same genes. 11. A caterpillar hibernates in a cocoon, and emerges as a butterfly.

Roots help a plant grow by absorbing the water and nutrients from the soil

Explanation:

Option C. "Homeostasis"

Explanation:

Homeostasis is the phenomenon inside the body of a living organism by which it maintains body mechanism with respect to changing environment in order to get stability.

Stomata plays a major role in the process of homeostasis in plant by reducing the water loss that takes place through the process of transpiration. When the environment is hot, stomata opens and water vapor comes out of stomata this helps in uptake of more and more water from the roots of the plants through the stems, this process cools down the plant.

When the temperature is cold outside, the stomata closes to stop the further uptake of water from the roots, this helps in maintaining the inner temperature of plant.

This is how stomata helps in maintaining homeostasis.