I wanna say the answer is B
Answer:
because they are copies of actual object or actions.
The USDA Animal Welfare Act takes precedence over guidelines produced by the Public Health Service, Department of Veterans Affairs and other government agencies.
The United States Department of Agriculture (USDA) has a specialized unit, called USDA Animal Care, which administers the Animal Welfare Act (AWA). AWA sets the minimum standards of care and husbandry for animals used for commercial or research purposes and public exhibitions.
B - FRONTS occur when two AIR MASSES meet!
Answer: Mutation can affect an organism by resulting to a change in the number and structure of chromosomes (chromosomal mutation). A typical example of this type of mutation is Down's syndrome where the individual contains 47 instead of 46 chromosomes.
Mutation can also result to a change in the nucleotide sequence of the DNA molecule in a particular region of a chromosome(Gene mutation) an example of genetic mutation is sickle cell anemia
Explanation:
