Answer:
B cell membranes protect a cell,and cell walls do not
True last scientific article I read which was not long again said that the gases that are in our air from space shows a neon color to it
Explanation:
Trophic levels is known as feeding levels in an ecosystem.
Trophic levels is any of the stages involved in the food chain. In an ecosystem, the trophic levels begins with the producer which provides foods from inorganic sources.
- Consumers at all levels feeds on the food produced by the producers. Some consumers feeds on other consumers.
C. The number of protons and neutrons.
