Answer: b. Carry on a conversation
Explanation:
There are different levels of intensity when exercising and these require different energy levels and different amounts of air coming into the lungs.
The CDC notes that if you are exercising at a moderate level, the energy and oxygen requirements will not be as high so you can be able to talk to other people without being short of breath from needing more of the oxygen and energy that is being used in the talking.
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Answer:
A good quality education is the foundation of health and well-being. For people to lead healthy and productive lives, they need knowledge to prevent sickness and disease. For children and adolescents to learn, they need to be well nourished and healthy.
Answer:
Neurodegenerative disease
Explanation:
Neurodegenerative Disease is a generic term for a range of diseases that affect neurons in the human brain. Neurons are the base unit of the nervous system (brain and spinal cord). Normally, neurons do not reproduce or replace themselves, so when they are damaged or die they cannot be replaced. Parkinson's disease, Alzheimer's and Huntington's disease are some examples of neurodegenerative diseases.
They are incurable and debilitating diseases that result in progressive degeneration and / or death of neurons. They cause problems of movement (ataxias) or mental function (dementia).
Biological macromolecule Building blocks Examples
Lipids Fatty acids and glycerol Fats, phospholipids, waxes, oils, grease, steroids
Proteins Amino acids Keratin (found in hair and nails), hormones, enzymes, antibodies
Nucleic acids Nucleotides DNA, RNA
