| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.06 |
| Score | 0% | 61% |
Velocity is the rate at which an object changes position. What is the formula for velocity?
none of these |
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\(\vec{v} = { \vec{d} \over t } \) |
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\(\vec{v} = \vec{d}t \) |
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\(\vec{v} = { t \over \vec{d} } \) |
Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
A dominant trait will be expressed when paired with:
a chromosome |
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a gene |
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a recessive trait |
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a dominant trait |
The traits represented by genes are inherited independently of each other (one from the male and one from the female gamete) and a trait can be dominant or recessive. A dominant trait will be expressed when paired with a recessive trait while two copies of a recessive trait (one from each parent) must be present for the recessive trait to be expressed.
Respiration is the process by which __________ absorb oxygen and eliminate carbon dioxide.
capillaries |
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blood cells |
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diaphragms |
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bronchioles |
The respiratory system manages respiration which is the process by which blood cells absorb oxygen and eliminate carbon dioxide.
In the food chain, omnivores may be which of the following?
secondary or tertiary consumers |
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primary or secondary consumers |
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secondary consumers or scavengers |
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primary or tertiary consumers |
Secondary or tertiary consumers may be omnivores.
Examples of secondary consumers include:
wolves |
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chickens |
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grasshoppers |
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plankton |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.