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 .:/cspeofkd4 bacterium that can respire using oxygen and also without oxygen in its environment. It can live in soil and water wheref ked4s.cp:/o 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 of the ecological niche of an 7:iv8cz f+dhhorganism? zh8+hdv7 :fci
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 miqw ytyz j4ct. yutvprt,3 -01,xotrophic 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 e.tt5n+i 1fgu 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 o iw /.ob w4cj7w)vmuj3*tv4oz f the abiotic factors affecting plant growth in the canopy and on the f vv iwwmj4b)j4tuo.z 7/c3ow* orest 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 and6v8a 5esqbzg*z3 fbat 9ry(j( quality of light that would be expected6et bfa8( a5g9(q3brzy*v sj z in 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 fundame krlo,h am:o rtnbuc3: /39v-j orr1b+ntal niche with 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 sim1, 1xaq2ph 0 mqhjdw(jh)-elmilar niches, and they are in dir h0je pw2dm11hqlh)(a- qm,xject competition for resources in the habitat.

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