| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.46 |
| Score | 0% | 69% |
An endoskeleton (internal skeleton) is a charateristic of __________ animals, including humans.
spiny |
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sentient |
|
arthropod |
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vertebrate |
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
In a eukaryotic cell, which organelles deal with proteins?
Golgi apparatus |
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endoplasmic reticulum |
|
ribosomes |
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all of these deal with proteins |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. Ribosomes produce proteins, endoplasmic reticulum helps synthesize proteins and fats, and Golgi apparatus prepares proteins for use.
Small rocks shed by asteroids and comets that reach the earth are called:
shooting stars |
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meteorites |
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meteors |
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meteoroids |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
In the heart, the __________ artery and vein manage blood flow to the lungs.
atrial |
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aorta |
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capillary |
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pulmonary |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
__________ is caused by a lack of Vitamin C.
shingles |
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scurvy |
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diabetes |
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anemia |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.