The correct answer is option C. Single celled organisms and soft, bone less animals. The Precambrian ear was believed to be before evolution. Meaning more plants and complex animals. Therefore, organisms were single celled during that time.
Hope I could help! :)
<span>While the cortex is the superficial outer layer of the kidney located underneath the capsule; the renal cortex is the most superficial part of the kidney. It is the outer region of the kidney between the renal capsule and the renal medulla where ultrafiltration occurs. Looking at the kidney, you'll observe that the renal cortex is a layer of tissue that contains tiny blood vessels, blood filters called nephrons, and collecting ducts that lead to the center region of the kidney. It contains a major portion or the nephrons and all cortical radiate arteries.</span>
I wouldn't know how to solve this question since I don't have all the information given to solve this problem. But I'm going with a hypothesis, but if given more information I would be glad to help.
<span>A person who is ill with fever will experience an increased basal metabolic rate. The body’s metabolism contains all of the chemical and biological process needed for the conversion of food into energy and the use of it like digestion and excretion. So when we become sick, the metabolism speeds up to fight the illness.
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