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 aerugmikw/ ryo*u.3n; 7kffinosa is a bacterium that can respire using oxygen and also without oxygen in its environment. It can live in soil and water where it causes infectionfyf*r ok3 ki;n/uwm. 7s 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 of the ecological ngjhnzfy:r/tq :5hy;qa /90:ln+ow aniche of an organism? z0 5jtg+fy // a;oqan:hnq n:h9lyr:w
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#

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3. What is an obligate mixotrophm f)nm (82twjjeu ,xm7ic 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 nutritib s7ulg3s(y c*on?

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 with details oe g(zqiikzu+g 3 g71s5,u6 //inbdghn f the abiotic factors affecting plant growth in the(gsnzk 6h1+g dn u3gi7/qize 5gi/u,b 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#

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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 any4 tu09cya8 jrp v0w1fhbrsbit*3i0 )f.1jped quality of light that would be expected in plants that grow on the foru8cf4 ajy3*f1tv1h t.)bri0 e 00sbpi9 y jwrpest floor

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7#

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第 3 题组 (共 2 题 2 分)

6. Contrast the fundamental niche wit0) v8wbk3l edah 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 yovnbr. vxbac7 ua+w- 30u might expect if two species have very similar niches, and they w.a-0bcbn xavu 37+rvare in direct competition for resources in the habitat.

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