Answer:
Natural factors of population change can't be swayed by humans. So for an example of a natural factor take an Earthquake. As of right now we can only predict when Earthquakes will. Inevitably some things will still get damaged and that just can't be helped. An Artificial factor for population change is something specifically made by humans. For an example take a genocide. If some guy decides he wants to go on a killing spree, well all I can say is that is Definitely not natural. Hope that helped.
Answer:
When we do high intensity Exercise our heart rate increases, supplying more blood flow to the brain. The increased heart rate also increases our breathing, making us breathe harder and faster. As a result more oxygen is supplied in our blood stream, more oxygen reaches our brain. This leads to neurogenesis, which is the production of neurons. Research has indicated that physical Exercise increases neurogenesis in the hippocampus, brain area important for learning and memory. Additionally, Exercise also influences the neurotrophies, it’s the family of protein that aids in neuron survival, development and function. This leads to greater brain plasticity and as a result better memory and learning. Regular physical activity lowers the risk of developing cognitive impairment, such as dementia, including Alzheimer’s disease. This improvement from the exercise is for people with normal and also impaired cognitive health, including people with ADHD, schizophrenia, multiple sclerosis, Parkinson’s disease, and stroke.
I believe the answer would be emotions.
The lungs<span> hold air that is breathed in. </span>Oxygen<span> gas in the air moves into the blood. The </span>heart<span> pumps to </span>transports<span> this oxygenated blood to cells in the body that need it to produce energy.</span>
Nick who observes thickening and discoloration of the nail of the index finger is most likely suffering from a fungal infection. Nail fungal infection is also known as onychomycosis or tinea unguium and is caused by many different types of fungi (yeasts or molds) . This infection cause the nail to become discolored, thick, and more likely to crack and break.
