Diarrhea is defined by loose, watery stool (poop.) Diarrheal diseases kill millions of people worldwide every year. Describe how a diarrheal disease might lead to death.

dehydration.

Explanation:

the body is loosing more fluid than it is able to keep in and extreme cases result in death

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex