Answer:
The nucleus contains a cell's DNA.
Answer:
The living components of the environment are known as biotic factors
Explanation:
Biotic factors include plants, animals, and micro-organisms. The non-living components of the environment are known as abiotic factors. Abiotic factors include things such as rocks,water,soil,light,rocks etc...
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Answer:
b. ventricles
The right and left ventricles
im not to sure, but i think its 21.95
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