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 th3n0l 0o ,zu0l7di3dgj 8yrvm rat can respire using oxygen and also without oxygen in its environment. It can live inzld3,jmlvriu0r 37od 80 ygn0 soil and water 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 components oodxhj160 cw3,h9 0j-p;bf,imkw pow bf the ecological niche of an organism? pw j m 0k wifbd0obx1,wo; ,hcph36-j9
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 mixotrophic n,/m 8)b (ztx4gfq;iptf5 w ymprotist?

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 nutrition?*aa; 5+k*0gpmlc ripbkue +;g

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#

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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 witmv3 h cx03l/nho 4+qwrh details of the abiotic factors affecting plant growth in the canopy and on the forest floor.h vmx/ row4nhqc330+ l
Use comparative terms like ‘more / higher / less’.
The first row has been completed as an example.

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6#

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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 availability and quality of light that woa:4st s*axsn,uld be expected ,s s*axt4na: sin plants that 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 with the realized niche of a sqh fbt2,cc)qd. , ac *9ceoe7hpecies.

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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 havsrd5xwa a.xr win e( /hca*2)4e very similar niches, and they are in direct competition for resources in tra 542wahx wei (cd /).a*nsxrhe habitat.

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