B. its should be propped up against the wall
All of the above
some people aren’t as fit as others, and older people may not be able to do the stuff that younger people can
Answer:
Mutations
Explanation:
A gene mutation is a permanent change in the DNA sequence of a gene. Mutations can occur in a single base pair or in a large segment of a chromosome and even span multiple genes. Mutations can result from endogenous (occurring during DNA replication) or exogenous (environmental) factors.
<span>Drug abuse is a major public health problem that impacts society on multiple levels. Directly or indirectly, every community is affected by drug abuse and addiction, as is every family
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