SL Topic B4.2 Ecological niches - 无忧得胜-网上国际课程 (5edu.win)

1#

第 1 题组 (共 4 题 4 分)

1. Pseudomonas aeruginosa is a bacterium that can respire using oxygen and also v;t; p.te1bce:ul 7ttq/mnr8 without oxygen in its environment. It can live in soil and water where it causes infections in mant e/ 8n qmvprc1b;t.ult t:e;7y species of plants and animals.
Which is the best description of Pseudomonas aeruginosa?

A. A facultative anaerobe and obligate parasite.

B. An obligate anaerobe and obligate parasite.

C. A facultative anaerobe and facultative parasite.

D. An obligate anaerobe and facultative parasite.

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2#

单选题 ( 1.0 分) (组内2/4) 切至整卷模式搜藏此题

2. Which of the following are components of the ecologic*fpre.x kk f0:al niche of an organism?xf k0*r:kfe. p
I. Abiotic factors.
II. Biotic factors.
III. Position of the organism in a food web.
IV. Light availability.

A. All of the above

B. II and IV only

C. I, II and III only

D. I, III and IV only

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3#

单选题 ( 1.0 分) (组内3/4) 切至整卷模式搜藏此题

3. What is an obligate mixotrophieotc,e--oh*ba c52 8y76 p hehdli ht/c protist?

A. A photosynthetic prokaryote that requires organic molecules from the environment.

B. An autotrophic eukaryote that requires organic molecules from the environment.

C. An insectivorous plant.

D. An autotrophic eukaryote that cannot utilise light as a source of energy.

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4#

单选题 ( 1.0 分) (组内4/4) 切至整卷模式搜藏此题

4. What is the best descyqwcq ta (blgyz7d6 .7.i,-b eription of holozoic nutrition?

A. Organic nutrients are ingested, digested, absorbed, and assimilated.

B. Inorganic nutrients are ingested, digested, and assimilated

C. Organic nutrients are digested externally.

D. Nutrition for animals with a hollow body structure.

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5#

问答题 ( 1.0 分) (组内1/2) 切至整卷模式搜藏此题

第 2 题组 (共 2 题 2 分) 当前第1/2题

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5. The image is of a deciduous forest.

(a) Complete the table wiaetm./cq120h s pj .mith details of the abiotic factors affecting plant growth in the canopy and on the forestmj ep01s im.ca/ h2t.q floor.
Use comparative terms like ‘more / higher / less’.
The first row has been completed as an example.

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6#

问答题 ( 1.0 分) (组内2/2) 切至整卷模式搜藏此题

第 2 题组 (共 2 题 2 分) 当前第2/2题

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5. The image is of a deciduous forest.

(b) Outline two adaptations to the availabiliuen 6 w,7ra7 s(ok5hibty and quality of light that would be expected in plants that grow on t7ark5o7w 6i,eb (hnsuhe forest floor

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7#

问答题 ( 1.0 分) (组内1/2) 切至整卷模式搜藏此题

第 3 题组 (共 2 题 2 分)

6. Contrast the fundamental niche with4s quotcb; 57c the realized niche of a species.

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8#

问答题 ( 1.0 分) (组内2/2) 切至整卷模式搜藏此题

7. Discuss the outcomes you might expect if two species have very similar nichei0vlbf+ ct //ks, and they are in diriklf/c/ vb+t 0ect competition for resources in the habitat.

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