Carbohydrates are your main sources of energy. They are needed for operation of the brain, body, and inner organs.
Hope this helps!!
<span>If a noun ends in a vowel, simply add -s.If a noun ends in a consonant, simply add -es.If a noun ends in a -z, change the z to c before adding -es.If a noun ends in ión, drop the written accent before adding -es.<span>If the plural refers to a mixed group, use the masculine.</span></span>
Answer:
Explanation:
Doctors,nurses and other medical stuff must study biology to learn how to aid both humans and animals. Learning about the human bodys inner processes, organs, neurological system, blood, reproduction development and diseases all prove essential for treatment and research.
The purple circular structures are the nucleus.