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 bact.hs l m,ir0:woh3 xct:erium that can respire using oxygen and also without oxygen in its environment. It can live in soil and water where it causes infections in many species of plants anhxl s,3:m.0r:cwo thi d 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 compa4bewffn g;x+9tj w5/ onents of the ecological niche of an organism?9f nejx w+/f54abwgt;
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 mixkzk9)t57g b 8bfxlx o/otrophic 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 desc-m3bev 14*gye6uebi0 bv cp4xription 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

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

(a) Complete the table with details of the abiotic fact9fz t4*xmg sjk00(i yt1/wo igors affecting plant growth in tijsk/wtx z 4f1i09y*og gt0m(he 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

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

(b) Outline two adaptations to the availability and quality p6jifx ) d2g1zof light that would be expected in plants tpigz1 ) 26jdxfhat grow on the forest floor

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7#

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第 3 题组 (共 2 题 2 分)

6. Contrast the fundamental niche wc:tbdg ye ue1x) /3g,dj7 63 drtdw,vwith 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 expedd)u+ (ajtul. ct if two species have very similar niches, and the ( dau)+jultd.y are in direct competition for resources in the habitat.

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