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AP Bio Ch. 2 MCQ
MCQ for ecology and ecosystems
| Question | Answer |
|---|---|
| Living organisms in an ecosystem are continually affected by abiotic factors. Which ones: | temperature, fire, sunlight, wind, soil ingredients, O2, H2O, CO2, precipitation, pH (acidity), pesticide |
| If a rise in temperature causes a decline in grasshopper development, how might this affect bird populations? | It would cause the bird to not get as much food and they would decrease |
| Describe how cooler temperatures and low precipitation might affect the producer and primary consumer populations in this food web: | The grass and trees (primary producers) will decrease growth, limiting available food. This will cause primary consumer populations to decrease. |
| Predict what would happen to the bird populations if the caterpillar population emerges unusually early, such as February: | The bird population will decrease. The caterpillar population will be gone before the hatchlings are ready to eat them, so food supply will be lower |
| When organizing scientific data, two general types of graphs can be used. When looking at the relationship between one variable and another, including time, a ___ graph is usually used. | line |
| When organizing scientific data, two general types of graphs can be used. When comparing different categories of data, a ___ graph is usually used. | bar |
| The standard error in the above data can be often reduced by ___ the number of ___ taken at ecosystem type. | increasing, samples |
| Energy flows all through an ecosystem. For example, in the presence of light, producers store energy into sugars and release oxygen, taking in carbon dioxide and water, through the process of ___. | photosynthesis |
| Meanwhile, both consumers AND ___ use the reverse process to metabolize the energy in sugars, releasing ___ + ___ and taking in ___, through the process of ___ | producers, CO2 + H2O and O2, respiration |
| In any ecosystem, terrestrial or aquatic, don't forget the tiny ___ that can still contribute to the food web through photosynthesis and respiration. | microorganisms |
| Primary Producer | grass |
| Primary Consumer | grasshopper |
| Secondary Consumer | bird |
| Tertiary Consumer | owl |
| Autotroph | grass |
| Does respiration | all of them |
| Carnivore | fox, owl, hawk |
| Herbivore | bird |
| Omnivore | chipmunk |
| Does Photosynthesis | all plants |
| Heterotroph | all of the animals |
| What term might apply to a human? | omnivore, heterotroph, does respiration, consumer |
| Two main strategies are often utilized in terms of reproduction, depending on the amount of time and resources available. ___-selected species take a long time to invest a lot of energy into just a few offspring. | K |
| Two main strategies are often utilized in terms of reproduction, depending on the amount of time and resources available. ___- selected species take advantage of a quick abundance of resources, and reproduce quickly with a high number of offspring. | r |
| What is an example of an r-selected species in the food web? | grasshopper |
| What's an example of a K-selected species in the food web? | hawk, owl, fox |
Created by:
josie_dr
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