The answer is sea stars. Sea stars can then push their stomachs out of the body while inserting it into the prey thus the food is being digested externally. Echinoderms are having 5 or at times multiple of 5 arms. Their shell is made of calcium carbonate.
The correct answer for the question above is letter d. Dehydration of fatty acids is the one that describes the chemical reaction taking place in this equation ,f<span>atty acids → triglyceride water. Dehydration is the process of removing water in the system.</span>
The answer is an embryonic stage. This is the period of gestation right after the implantation, this is when the major organs of a baby are formed.
In the embryonic stage, <span>ectoderm is the outer layer that develops to a hair, teeth, brain and spinal cord. </span>