I believe the answer is B. Annelids. :)
C. The digestive system breaks down food and the circulatory system transports the nutrients throughout the body.
The Digestive system is the system that helps the body digest food. It consists of the following organs: liver, stomach, gallbladder, large and small intestines, pancreas, rectum, and esophagus.
The Circulary system is the system that pumps blood through body. The blood contains all the nutrients and minerals the body needs. The system consists of the following organs: heart, blood vessels, blood, lymph, lymphatic vessels, and glands.
The answer would be fossils since they are they remains of past life forms
The first responsibility of the surgeon is notify the surgeon and go over the preoperative skin antiseptic choice.
Preoperative Skin- An excellent way to reduce surgery site infections is preoperative skin preparation (SSI). The two most often used antiseptics are povidone iodine (PV-I) and alcoholic chlorhexidine (CHG). Their effectiveness in lowering the normal bacterial skin flora after clean orthopedic surgery is the focus of this meta-analysis.
Antiseptic- An antiseptic is a substance that inhibits or stops the development of microorganisms on the body's outside surfaces, hence assisting in the prevention of illnesses.
Microorganism- A living thing that can only be observed under a microscope. Protozoa, algae, fungus, and bacteria are all examples of microorganisms.
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B) The atria only recieve blood and the Ventricles have to pump the blood
