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- 1. Multiple Choice
Units of inherited information
genetic variation
mendelian genetics
genetics
genes
- 2. Multiple Choice
The science that study heredity.
genes
genetic variation
genetics
DNA
- 3. Multiple Choice
A trait that is being masked of another trait.
recessive trait
heterozygous
dominant trait
homozygous
- 4. Multiple Choice
These are alleles that have nonidentical genes.?
allele
heterozygous alleles
homozygous alleles
trait
- 5. Multiple Choice
A trait that mask the expression of another trait.
recessive trait
heterozygous
homozygous
dominant trait
- 6. Multiple Choice
What happens to cause air to be exhaled from the lungs?
The rib muscles contract and move outward
The chest cavity expands and grows larger.
The diaphragm relaxes and moves upward.
The lungs contract and then expand.
- 7. Multiple Choice
What term do scientists use to describe the chemical process in which oxygen and glucose react to release energy inside body cells?
inhaling
exhaling
respiration
breathing
- 8. Multiple Choice
When blood flows into the right atrium from the body, it contains.
little oxygen and a lot of carbon dioxide
a lot of oxygen and little carbon dioxide
a lot of both oxygen and carbon dioxide
little of either oxygen or carbon dioxide
- 9. Multiple Choice
Blood vessels that carry blood away from the heart are called
veins
arteries
capillaries
lymphatic vessels
- 10. Multiple Choice
Exercise is important for cardiovascular health because it
increases blood pressure
strengthens heart muscle
slows the heartbeat
reduces sodium in the blood
- 11. Multiple Choice
Your pulse rate increases, your heart is beating
slower than before
faster than before
at the same rate as before
with less pressure than before
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