Question

Answer the following questions:

1) How is tropism beneficial to plants?
2) How is the balance of oxygen and carbon dioxide maintained in nature?
3) Decomposers play an important role in the environment. Justify.
4) Biotic and abiotic components are closely inter related in nature. Explain.

Answer 1

Explanation:

1. A tropism is a growth toward or away from a stimulus. Common stimuli that influence plant growth include light, gravity, water, and touch. ... Plant hormones, like auxins, are thought to help regulate the differential growth of a plant organ, causing the plant to curve or bend in response to a stimulus.
2. The balance of carbon dioxide and oxygen in atmosphere is mainly maintained by the oxygen released and carbon dioxide consumed during photosynthesis by plants. It is also regulated by the carbon dioxide released by animals during respiration. Thus, the correct answer is 'Photosynthesis.
3. Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.
4. Biotic factors are the living components of an ecosystem (biotic meaning biological). These include living animals, plants, and microscopic organisms like bacteria. Abiotic factors are the non-living components of an ecosystem. ... Biotic and abiotic factors both influence each other.