01: 11: 42 archaeopteryx fossils show that the animal had feathers like a bird. it also had a bony tail, teeth, and claws on its wings like a reptile. scientists claim this is evidence of a common ancestor. what makes this a sound claim?

b) chemical ( the chemical breakdown of food is accomplished by enzymes. )

- officialprodixy ☕

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.

it depends on how much it could carry.