<span>The immune system is the body's natural defense mechanism against organisms that can cause infection.There are three types of mechanisms:
1. Cellular :</span><span> refers to the recognition and/or killing of virus and virus-infected cells by leukocytes and the production of different soluble factors (cytokines) by these cells when stimulated by virus or virus-infected cells
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2. Structural: </span>barriers and the immune system defend the body<span> against organisms that can cause infection. </span>Natural<span> barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid.
3. Chemical: </span><span>Some of these include the low pH of the stomach, which inhibits the growth of pathogens; blood proteins that bind and disrupt bacterial cell membranes; and the process of urination, which flushes pathogens from the urinary tract.
</span><span>antibodies - chemical
tissues lining hollow organs - cellular
phagocytes - cellular
skin - structural
antigen - chemical
leukocytes - cellular</span>
Because green house air is like carbon dioxide and is toxic for people to breathe in but they want to put it under an act that says it will cause u no harm
A nurse can
identify possible developmental dysplasia of the hip (DDH) during a newborn
assessment through asymmetry of the gluteal folds. Asymmetrical buttock creases can
suggest hip dysplasia in infants but an ultrasound or x-ray study will need to
be done to determine whether the hips are normal or not just like a hip click.
Answer:
1. Obtain two identical containers and dry sand.
2. Shape equal amounts of sand into a "slope on the side of" each container.
3. Spray water on the sand in one container. The sprayed water represents "rainfall"
.
4. In the other container, "place ice cubes to melt on the sand. This represents snow or glaciers."
.
5. Observe and record the changes in the sand.
6. Analyze differences between the two containers.
Explanation:
Mine hasn't been graded yet but I'm pretty sure this is the right answer. I'll come back once it's graded and say.
I would say <span>C. being injected into the cell is the right answer</span>
