| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.82 |
| Score | 0% | 56% |
In the food chain, consumers are classified as which of the following?
tertiary |
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secondary |
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all of these |
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primary |
Most animals consume other organisms to survive. Consumers (heterotrophs) are divided into three types, primary, secondary, and tertiary, based on their place in the food chain.
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
plants |
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animals |
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habitats |
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minerals |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
In the heart, blood flows from the right __________ to the lungs then back to the heart via the left __________.
atrium, atrium |
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ventricle, ventricle |
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ventricle, atrium |
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atrium, ventricle |
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.
As part of the carbon cycle, plants release carbon into the atmosphere through which process?
evaporation |
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photosynthesis |
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decomposition |
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sedimentation |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
protons |
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electron shells |
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electrons |
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atomic mass units |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.