Your Results | Global Average | |
---|---|---|
Questions | 5 | 5 |
Correct | 0 | 3.29 |
Score | 0% | 66% |
Someone who has Rh-factor __________ blood cannot receive blood with a __________ type.
negative, positive |
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antigen, negative |
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positive, antigen |
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positive, negative |
Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.
What is a major difference between the somatic and autonomic nervous systems?
one is inherited, the other is learned |
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one controls voluntary activity, one controls involuntary activity |
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one controls thinking, the other controls feeling |
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each belongs to a different nervous system |
Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
DNA is encoded through a combination of which of the following?
nucleotides |
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gametes |
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helix |
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genes |
Deoxyribonucleic acid (DNA) is the molecule that contains genetic information. DNA is encoded through a combination of nucleotides that bind together in a specific double helix pattern.
The envelope of gases surrounding the planet is called the:
geosphere |
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lithosphere |
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atmosphere |
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hydrosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
In the pancreas, lipase converts fat to:
amino acids |
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simple sugars |
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glycerol and fatty acids |
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complex carbohydrates |
The acids produced by the pancreas contain several enzymes that aid in digestion. Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.