Answer: Ecosystem
Explanation: An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. A niche refers to the role of a species in its ecosystem. A habitat is the physical environment in which a species lives and to which it is adapted.
D I think because the trees block out all the sun
It regulates the body's growth, metabolism (the physical and chemical processes of the body) and sexual development and function.
Which characteristic of life best describes photosynthesis?
Answer: The correct answer will be metabolism. Explanation: Photosynthesis is a process performed by the plants and green bacteria which produces sucrose using carbon dioxide and water in the presence of sunlight.
Glucose and oxygen are the input molecules