Answer:
Organism- A living thing.
Population- The amount of Organisms in a certain species.
Biological community- The species and others in a certain biome
Ecosystem- The entire biome itself
Biome- A type of landform with its own features and geography.
Forest fires promote regrowth, clear cut has to be replaced
Answer:
1.message or impulse sent through the nervous system
2.body or lymph performes the action.
3.muscle contract
4.message received at muscle fibers
5.brain decides the action.
Answer:
Option A, Viruses contain either DNA or RNA.
Explanation:
Virus is a non-living microscopic molecule that requires a host to live in and reproduce. All the viruses have nucleic acid either in the form of DNA or RNA. DNA or RNA is genetic material that is enclosed with in a membrane known as capsid. Capsid is also made up of protein. They are extremely small, even smaller than a normal cell and only consist of package of nucleic acid and protein.
Hence, option A is correct
Answer is B. The rest don’t make sense
