Answer:
ecosystem
Explanation:
An ecosystem consists of all the living things (biotic factors) in a given area, together with the nonliving environment (abiotic factors). The nonliving environment includes water, sunlight, soil, and other physical factors
Answer:
<em>DNA does not act directly on other molecules instead lots of enzymes act on DNA and copy its Info</em>
Explanation:
Answer: Cells typically receive signals in chemical form via various signaling molecules. When a signaling molecule joins with an appropriate receptor on a cell surface, this binding triggers a chain of events that not only carries the signal to the cell interior, but amplifies it as well.
Explanation:
In this example, the biosphere is very dependent on the hydrosphere.
Pollution is an ecological disturbance and turmoil that ruins and endangers life either in land or sea, even air.
Three types of pollution exist:
Water pollution
Air pollution
Land pollution
The process is called the waxing moon.