Although I am not 100% (i am not the best for geography), It must be D. Hope this helps your grade! :3
The answer is Corpus callosum. The largest structure of the human brain, consisting of the two cerebral hemispheres connected by the corpus callosum and covered by the cerebral cortex. Corpus callosum is a long, thick band of nerve fibers that connects the left and right hemispheres of the brain and allows communication between them. Development of the CC makes communication between the hemispheres more efficient.
The ideal serving of protein rich food in a day is up to 2-3 servings or <span> c. 1/3 of your dinner plate. </span>Protein can be found in eggs, poultry, fish, beans, peas, lentils and nuts. The other 2/3 of your plate should include carbs and fruits and vegetables.
Estos pueden ser desde una tipología de rocas, un habitat natural, comunidades urbanas y rurales, cuerpos de agua y afuentes, elementos morfológicos(volcanes, sierras, montañas), coberturas vegeatles. Existe una gran diversidad y abundancia de organismos que habitan en nuestro planeta.