why are model organisms used in biomedical research? a.) to scientists understand medical issues that cannot be tested on humans b.) to increase the likelihood of transmitting virusesc.)  to find organisms genetically identical to humans d.) to increase the populations of fruit flies, zebrafish, and other model organisms

The appropriate answer is a. to help scientists understand medical issues that cannot be tested on humans. Scientists often use animals that are easy to cultivate and have some similar anatomical feature to humans or have a feature similar to human organs or features. One of the most common model organism is the mice; a specially bred species used for testing in the lab.

idk but if i had to take an educated guess i’d say a c d