Your Results | Global Average | |
---|---|---|
Questions | 5 | 5 |
Correct | 0 | 3.52 |
Score | 0% | 70% |
Which of blood component carries oxygen?
plasma |
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red blood cells |
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platelets |
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white blood cells |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
The large intestine does which of the following?
breaks down starches |
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breaks down proteins |
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processes the physical waste produced by digestion |
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breaks down fats |
The large intestine (colon) follows the small intestine and processes the physical waste produced by digestion, absorbing water and minerials that remain back into the body. Solid waste is then stored in the rectum while liquid waste is stored in the bladder.
Momentum is a measure of how difficult it is for a moving object to stop. Which of the following is the formula for momentum?
\(\vec{p} = m\vec{v}\) |
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none of these |
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\(\vec{p} = { \vec{v} \over m}\) |
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\(\vec{p} = {m \over \vec{v}}\) |
Momentum is a measure of how difficult it is for a moving object to stop and is calculated by multiplying the object's mass by its velocity: \(\vec{p} = m\vec{v}\). Like velocity, momentum is a vector quantity as it expresses force applied in a specific direction.
A person's genotype is their genetic makeup and includes:
phenotypes |
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both dominant and recessive alleles |
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recessive alleles |
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dominant alleles |
A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.
-40°F is how many °C?
-40 |
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-8 |
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\({40 \over 9}\) |
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\(-{40 \over 9}\) |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)