Form 2 Chpt 2

Diagram shows the living organisms in the paddy field.

Which of the following is the example of secondary consumer?

• Rat

• Eagle

• Grasshopper

• Sparrow

Diagram shows a carbon cycle.

What are represented by process P and Q?

• P: Transpiration

  Q: Evaporation (蒸发)

• P: Respiration (呼吸)

  Q: Decomposition

  (腐化)

• P: Decomposition

  Q: Combustion (燃烧)

• P: Respiration

  Q: Combustion

Paddy --> Caterpillar --> Chicken --> Snake

Above shows a food chain.

What happens if the population of chicken decreases (减少) due to disease (疾病) strikes?

• The number of snakes increases.

• The number of caterpillars decreases.

• The number of caterpillars increases.

• The number of paddy plants increases.

Diagram shows an arctic fox.

Which of the following is the adaptation of the animal in tundra (苔原) area.

• has thin fur

• has short tail

• has small ears

• has long legs

Diagram shows a type of interaction between organisms.

Which of the following has the same type of interaction as the diagram?

• leech (水蛭) and human

• sea anemone (海葵) and clown fish

• zebra and lion

• remora fish and shark

What is the interaction shown by the organisms in the diagram?

• Mutualism

• Parasitism

• Commensalism

• Prey-Predator

Mutualism is an interaction that ____________ .

• benefits one organism without harming or benefiting another.

• benefits one organism but harms another.

• benefits both organisms.

• both gains (得到) nothing.

Which of the following is not the consequences of forest logging on the environment?

• causes acid rain

• causes soil erosion

• causes greenhouse effect (温室效应)

• causes the extinction of flora and fauna species

The plant roots hold the soil firmly to prevent soil ____.

Energy _____ in food web.