A system is a group of related parts with specific roles that work together to achieve an observed result. If a body system, such as the digestive system, fails to work properly, what would happen to the organism? A. The organism would not be able to function properly. B. The defective system would regenerate into a new, working system. C. The other organ systems would compensate for the defective system. D. The organism would immediately evolve so the defective system is no longer necessary.

A. The organism would not be able to function properly.

Explanation:

In relation to living organisms, a system consist of several organs that are working together to achieve a single aim. The system is a form of division of labour among several organs.

The main aim of the digestive system is to carryout digestion of food. Through digestion, organism is able to extract nutrients and energy necessary for other metabolic activities.

Hence, if the system fails to work properly, the organism will not be able to carryout digestion and this will affect the overall function of the organism.

The correct option is A.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?