Answer:
B. Stroke
Explanation:
Atherosclerosis refers to the formation of cholesterol-rich plaques in the inner lining of arteries. Atherosclerosis in cerebral arteries which function to provide oxygenated blood to brain cells leads to abrupt destruction of brain cells. Death of brain cells occurs due to oxygen deprivation. It is called a stroke or brain attack or cerebrovascular attack. Stroke poses a risk of developing higher blood pressure.
<span>The answer is </span>‘<span>the molecule would have to be longer to be more
sensitive to red light and shorter to be more sensitive to blue light.</span>’The cones change shape and vary their length once
they absorb a photon. This change is transduced, through biochemical pathways, into nerve impulse and carried
to the brain.
Answer:
A.
Explanation:
We can see that in both the male and female despite being heterozygous both have freckles. This must mean that freckles is a dominant trait. In box one, there are two capital f's (FF). Two of the same would make it homozygous, and because it is two of the dominant trait which gives freckles A is the correct choice.
Answer:
See the steps below (8,681.25 g of 
will be needed0
Explanation:
From the equation, 4 moles of H2 requires 1 mole of Fe3O4.
1st step: calculate the number of mole of 300 g of H2.
mole = mass/molar mass
Mole of 300 g H2 = 300/2 = 150 mole
Hence, 150 moles of H2 will require: 150/4 = 37.5 moles of Fe3O4.
Step 2: Use the mole of Fe3O4 to calculate the mass of Fe3O4
mass = mole x molar mass
mass of 37.5 mole Fe3O4 = 37.5 x 231.5 = 8,681.25 g
Hence, 8,681.25 g of Fe3O4 will be required to completely react with 300 g H2
