The endocrine system is a network of glands located throughout the head and torso. Unlike the nervous system which is directly wired throughout the body, endocrine organs are separate entities linked to each other via the cardiovascular system.
What is the cardiovascular system explained?
For the body to get oxygen, blood must be pushed from the heart through the circulatory system to the lungs. Following that, the heart pumps oxygenated blood through the arteries to the rest of the body. Veins bring blood that is oxygen-deficient back to the heart, where it is circulated again.
Why is cardiovascular important?
The cardiovascular system feeds the body's cells and organs with oxygen, nutrients, hormones, and other essential compounds. The body must be capable of meeting the demands of stress, exercise, and activity. It helps control body temperature among other things.
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Answer:I think it was The Heat waves can be dangerous, causing illnesses such as heat cramps and heat stroke, or even death. Warmer temperatures can also lead to a chain reaction of other changes around the world. That's because increasing air temperature also affects the oceans, weather patterns, snow and ice, and plants and animals
Explanation:
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Answer:
B. Case-Control
Explanation:
A case-control is a study that compares a group with an outcome of interest (cases) with a group who do not have the outcome (controls). This study aims to looks back retrospectively to compare how frequently the exposure to a risk factor is present in each group and with that to determine the relationship between that risk factor and the outcome.
So in this case, the cases are children with pervasive development disorder and the control is those without the disorders.
These studies are normally observational because no intervention is attempted.
