The tadpoles take their food from the yolk of an egg. The egg yolk is equivalent to the placenta. T<span>he </span>placenta <span>attaches itself to the uterus to provide the </span>developing<span> foetus with blood and oxygen.</span>
Answer:
The skull.
Explanation:
The cerebrospinal fluid is a clear fluid that serves as a nutrient delivey system for the brain, it also removes waste and acts as a cushion surrounding the brain and spinal cord. <em>Its leakage from the nose usually happens when there is a fistula between the dura and the skull base after a trauma.</em> This kind of fractures can lead to meningitis and surgery is needed.
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Answer:
The relationship between stress and illness is complex. The susceptibility to stress varies from person to person. Among the factors that influenced the susceptibility to stress are genetic vulnerability, coping style, type of personality and social support. Not all stress has negative effect. Studies have shown that short-term stress boosted the immune system, but chronic stress has a significant effect on the immune system that ultimately manifest an illness.
Answer:
A good workout option for health class would be cardio or yoga.
Explanation:
Increasing rates of chronic diseases, increasing elderly population
