9. external innate immunity depends on a. complement receptors. b. cytokines. c. inflammation. d. intact skin.

The answer is D Intact skin

The answer is option D.

Explanation:

The natural safe framework is basically comprised of obstructions that plan to keep infections, microscopic organisms, parasites, and other outside particles out of your body or point of confinement their capacity to spread and move all through the body.Innate resistance alludes to nonspecific guard components that become possibly the most important factor instantly or inside hours of an antigen's appearance in the body. These components incorporate physical obstructions, for example, skin, synthetics in the blood, and invulnerable framework cells that assault remote cells in the body.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

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