LAST PERSON STADING ECOLOGY EDITION. 1. A certain plant requires moisture, oxygen, carbon dioxide, light, and minerals in order to survive. This statement

LAST PERSON STADING

ECOLOGY EDITION

1. A certain plant requires moisture, oxygen, carbon dioxide, light, and minerals in order to survive. This statement shows that a living organism depends on

1.biotic factors 2.abiotic factors 3.symbiotic relationships 4.carnivore-herbivore relationships

The correct answer is……

2. abiotic factors

2. Which is a biotic factor operating within an ecosystem?

1.the type of climate in a given region 2.the carnivores that consume other animals 3.the amount of helium gas in the air 4.the rate of flow of water in a river


2. the carnivores that consume other animals

3. Which condition is necessary for an experiment to yield useful data?

1. Similar results should be obtained when the experiment is repeated

2. Only the expected results should be considered each time the experiment is performed.

3. The hypothesis must be correct. 4. The experimental period must be short.

The correct answer is…….

1.Similar results should be obtained when the experiment is repeated

4.Name one major limiting abiotic factor limiting the growth of autotrophs at great depths in an ocean

1.Type of seafloor2. Availability of minerals3. Amount of light4.Absence of biotic factors

The correct answer is….

3. Amount of Light

5. Earth’s water, land and the atmosphere would constitute:

1. A community2. A Biome3. A Biosphere4. A Population


3. A biosphere

6. A plant needs oxygen, carbon dioxide, water and minerals to survive. This statement

shows that autotrophs depend on

1.Symbiotic relationships2.Abiotic Factors3.Biotic Factors4.Food chains


2. Abiotic factors

7. Choose a statement that represents a biotic factor in an ecosystem.

1.Cold Climate of a given region2.The predators feeding on herbivorous animals3.The amount of nitrogen in the soil4.The flow of water in the stream

The correct answer is…..

2.The predators feeding on herbivorous animals

8. All plants, animals and micro-organisms living in a forest ecosystem constitute a:

1.Population2.Species3.Phylum4.Community


4.Community

9. Decay/ Decomposition of organic matter is accomplished by the activity of:

1.Viruses and algae2.Bacteria and Fungi3.Green plants4.Scavengers


2.Bacteria and Fungi

10. What is the original source of energy in a forest ecosystem?

1.Sunlight2.Water3.Plants4.Animals


1.Sunlight

11. Which organisms are dependent upon other animals for food?

1.Producers2.Herbivores3.Scavengers4.Primary consumers


3.Scavengers

12. Choose a statement which illustrates a biotic resource interacting with an abiotic resource?

1.A rock moves during an earthquake.2.A sea turtle transports a pilot fish to food.3.A plant absorbs sunlight, which is used for photosynthesis.4.A wind causes waves to form on a lake


3.A plant absorbs sunlight, which is used for photosynthesis

13. Certain bacteria living in a human's large intestine help to produce vitamin K. This

relationship is an example of:

1.Mutualism2.Commensalism3.Plant parasitism4.Animal parasitism

The correct answer is…….

1.Mutualism

14.


1.Ecosystem

15.A student observes that an organism is green. A valid conclusion that can be drawn from this observation is that:

1 the organism must be a plant2.the organism cannot be single celled3.the organism must be an animal4.not enough information is given to determine whether the organism is a plant or an animal


4.not enough information is given to determine whether the organism is a plant or an animal

16. Why do scientists consider any hypothesis valuable?

1.A hypothesis requires no further investigation.2.A hypothesis may lead to further investigationeven if it is disproved by the experiment.3.A hypothesis requires no further investigationif it is proved by the experiment.4.A hypothesis can be used to explain a conclusion even if it is disproved by the experiment


2.A hypothesis may lead to further investigationeven if it is disproved by the experiment

17. Decomposers are important in the environment because they

1.convert large molecules into simpler molecules that can then be recycled2.release heat from large molecules so that theheat can be recycled through the ecosystem3.can take in carbon dioxide and convert it into oxygen4.convert molecules of dead organisms intopermanent biotic parts of an ecosystem


1.convert large molecules into simpler molecules that can then be recycled

18. In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and absorbs materials from the tree, while the slug eats algaegrowing on the outside of the trunk. These organisms do not compete with one another because they occupy1.the same habitat, but different niches2.the same niche, but different habitats3.the same niche and the same habitat4.different habitats and different niches


1.the same habitat, but different niches

19. Researchers performing a well-designed experiment should base their conclusions on

1.the hypothesis of the experiment2.data from repeated trials of the experiment3.a small sample size to insure a reliable outcome of the experiment4.results predicted before performing theexperiment


2.data from repeated trials of the experiment

20. What impact do the amounts of available energy, water, and oxygen have on an ecosystem?

1.They act as limiting factors.2.They are used as nutrients.3.They recycle the residue of dead organisms.4.They control environmental temperature.


1.They act as limiting factors.

21. The removal of nearly all the predators from anecosystem would most likely result in

1.an increase in the number of carnivorespecies2.a decrease in new predators migrating intothe ecosystem3.a decrease in the size of decomposers4.an increase in the number of herbivores


4.an increase in the number of herbivores

22. A science researcher is reviewing another scientist’s experiment and conclusion. The reviewer would most likely consider the experiment invalid if1.the sample size produced a great deal of data 2.other individuals are able to duplicate the results3.it contains conclusions not explained by the evidence given4.the hypothesis was not supported by the data obtained


3.it contains conclusions not explained by the evidence given

23. A company that manufactures a popular multivitamin wanted to determine whether their multivitamin hadany side effects. For its initial study, the company chose 2000 individuals to take one of their multivitamintablets per day for one year. Scientists from the company surveyed the participants to determine whetherthey had experienced any side effects. The greatest problem with this procedure is that

1.only one brand of vitamin was tested 2.the sample size was not large enough3.the study lasted only one year 4.no control group was used


4.no control group was used

24. Which phrase is an example of autotrophicnutrition?

1.a cow eating grass in a field2.a mushroom digesting a dead log3.an apple tree making its own food4.a tapeworm feeding in the body of a dog


3.an apple tree making its own food

25. A biologist formulates a hypothesis, performsexperiments to test his hypothesis, makes carefulobservations, and keeps accurate records of hisfindings. In order to complete this process, thebiologist should

1.adjust the data to support the hypothesis2.eliminate data that do not support the hypothesis3.write a research paper explaining his theories before performing his experiments, in order to gain funding sources4.evaluate the findings and, if necessary, alter the hypothesis based on his findings, and test the new hypothesis


4.evaluate the findings and, if necessary, alter the hypothesis based on his findings, and test the new hypothesis

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LAST PERSON STADING ECOLOGY EDITION. 1. A certain plant requires moisture, oxygen, carbon dioxide, light, and minerals in order to survive. This statement