the correct answer would be C. Coffee is a homogenous mixture.
Answer:
us humans need a balanced ecosystem because its what keeps us alive. when having a balanced ecosystem we have cleaned water, purified air, maintained soil, regulates our climate, recycles nutrients, and provides us with food.
The correct answer is that "further teaching on skin care is necessary". This patient is using tepid water to cleanse the area as well as applying ice three times a day. The nurse should educate the patient that the extremes of temperatures are not necessary and should be avoided such as warm to hot water as well as cold water or even ice. Cold water or ice will constrict blood vessels in the area and can produce tissue necrosis by ischemia. Warm to hot water can scald the skin (if hot enough) and even promote the redness as warm water dilates blood vessels.
Chemical factors: This is due to internal stimuli. Changes in the blood such as decrease in O2, increase in CO2 and decrease in PH cause impulse in the carotid artery which stimulates the respiratory centers in the medulla and cause breathing.
Mechanical factors: also called external stimuli. Compression of the fetal chest during delivery forces small amount of lung fluid out of the lungs. This increase in pressure in the chest draws air into the lungs.
Answer:
C
Explanation:
We can rule out B and A easily as to pretty clear facts. C and D are the only ones left. Genetic variation (D) is not going to take place as there is no specific need for DNA variation.
