The first one is a.
2 is where water vapor is
<span> Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.</span>
I believe it is the retina that changes shape to focus on distant objects.
Answer:
after Clark was treated with a hypertonic solution? increased Na concentration in matrix of brain caused water from blood to move in to the brain which increased the matrix pressure. Pressure caused the neuron firing rate to increase which increased the likelihood of seizures.
Explanation:
hope this helps :)
