Final answer:
The Animal Care Panel was established in 1950 to ensure the welfare of laboratory animals. The ethical treatment and humane care of these animals are overseen by Institutional Animal Care and Use Committees (IACUCs) as mandated by regulations.
Step-by-step explanation:
The group established in 1950 to ensure the welfare of laboratory animals and provide for their needs is the Animal Care Panel. Over time, the importance of ethical treatment of animals in research has led to the creation of various regulations and the involvement of Institutional Animal Care and Use Committees (IACUC). Each institution conducting animal research and receiving federal funding must have an IACUC that includes researchers, administrators, veterinarians, and a community member, ensuring humane treatment and scientific justification for the use of laboratory animals.