Answer:
The nervous system has two main parts:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
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Answer:
They became closer to each other.
Explanation:
When skeletal muscles contracts the Z lines that are at the end of every sarcomere became closer to each other due to the fact that the I bands that are attached to the Z lines and contains the myosin filaments move closer to each other interacting with the actin filaments and shorten the the H zone that is in the middle of the sarcomere. In other words, It all becomes compact during a contraction.
Answer: population, community, ecosystem and biosphere
Explanation:
In ecological organization, the smallest level is Organism level (a unit representative).
Population level comes next after the Organism level. Population refers to the total number of organisms of the same species inhabiting a geographical area.
Then, Community level comes next after population level. A refers to group of plants, animals and other living components functioning in their non-living environment.
Ecosystem level is the next after community level. An ecosystem refers to the aggregate of living organisms interacting with the non-living components in an environment.
Lastly, Biosphere is the highest level in ecological organization. Biosphere refers to the part of the earth where living organisms occupies.
Answer:
transfer RNA carries a copy of the DNA base sequence to the cytoplasm
Explanation:
i am sorry if this is wrong
Answer: Ozone in the stratosphere is made up of three (3) oxygen atoms while Oxygen we breathe consists of two (2) atoms
Explanation: Oxygen in the atmosphere is a diatomic molecule, this means it is made up of two oxygen atoms. Ozone is a blue gas with a pungent odor, it is a triatomic molecule, this means it is made up of molecules containing three oxygen atoms. Ozone protects living organisms by preventing ultraviolet rays from reaching the Earth's surface.
