There are many internal factors which living organisms respond to, two of them are temperature and hormone levels. Organisms respond to internal factors in order to stay healthy and survive. The internal environment of living organisms has to be kept relatively constant, this is constancy is achieved through the process of homeostasis.
Answer: C
Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.
Answer:
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A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.
Explanation:
For example factories in America will give off a lot of pollution but then thanks to the wind it will effect other places like Europe.
