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 bacteriumkdk:gtn b:g3 * that can respire using oxygen and also without oxygen in its environment. It can live in soil and wate::*bdg3gtnk k r where it causes infections in many 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 componelsh 0j7mo +q1*m*zzklnts of the ecological niche of an organism? l1zklo mz*s0j* + q7hm
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 mixotro.jmo+j bw,5fq8y 85g ysb4towphic 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 description of holozoic nkv h xpg1*havg u,vc1p, :+x,powuse-uqo; 78utrition?

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

题组内容描述:
5. The image is of a deciduous forest.

(a) Complete the table with details of the abiotic g8 nch 8z4ds:6vo(dphfactors affecting plant growth in oz (vhpd88d:4s 6g nchthe canopy and on the forest 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 adaptnn)pe ;hbf97csx k k:-ations to the availability and quality of light that would be expected in plants that grow on the f7ex)bh- s:9kk; nncpforest floor

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7#

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第 3 题组 (共 2 题 2 分)

6. Contrast the fundamental niche with the realized nz7 oyo*a,dm7st9yfw +84z kquexq,- eiche 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 expectrbtfu t kj2 .9u*7o3ut if two species have very similar niches ru2butt7ko9tu 3.j*f , and they are in direct competition for resources in the habitat.

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