Which one of these exhibits gill slits at some point of its development..
a. all mollusks
b. all echinoderms
c. all cnidarians
d. all chordates

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

Long term exposure to waves can cause sunburns and skin cancer.

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms