| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.31 |
| Score | 0% | 66% |
A person's genotype is their genetic makeup and includes:
phenotypes |
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dominant alleles |
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recessive alleles |
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both dominant and recessive 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.
Which of the following members of the food chain are most alike?
scavengers and decomposers |
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herbivores and autotrophs |
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producers and tertiary consumers |
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primary consumers and omnivores |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.
Which of the following is the smallest component of an element that still retains the properties of the element?
atom |
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molecule |
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element |
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neutron |
An atom is the smallest component of an element that still retains the properties of the element.
Someone who has Rh-factor __________ blood cannot receive blood with a __________ type.
antigen, negative |
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positive, antigen |
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positive, negative |
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negative, positive |
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.
During digestion, after proteins are broken down where does the undigested food go next?
large intestine |
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small intestine |
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esophagus |
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stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.