Answer:
b. Has risk factors that include atherosclerosis
Explanation:
Ischemic stroke happens when there are underlying factors such as atherosclerosis. Atherosclerosis is caused by clogging of fat and cholesterol in the blood vessels. The reduction in the flow of blood to the brain is usually as a result of blood clumping together and blocking the blood vessels carrying blood to the brain.
The symptoms of ischemic stroke include dizziness, loss of coordination, headache etc.
The wave period is the amount of time it takes a wave to
pass a point. Wave frequency is what you
call the number of waves that pass in a certain point per second. If you
increase the wave length of any wave, you decrease the wave frequency (the
number of waves that pass in a certain point per second).
Phenotype, physical appearance, is determined by the genotype, an organism's genetic makeup.
Answer:
chlorophyll
Explanation:
Most plants contain a special colored chemical or pigment called chlorophyll that is used in photosynthesis. Chlorophyll is what absorbs the sun's energy and turns it into chemical energy. Not all the light energy from the sun is absorbed. Sunlight has many different colors in it.