12. jacks and silversides are a good example of an evolutionary arms race between predators and prey. describe the predatory adaptations of the jacks, and the defensive adaptations of the silversides

Predators is an organism which can be described as the hunter who hunts for food. An d prey can be described as the organism on which the predator will feed.

Silversides can be described as small fishes which are very thin. They are usually found in fresh water or near the coastal areas.

The adaptation of the Jacks include :

Adaptations of silverside are:

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.