F2_Science_Chapter Test (C1-C13)

What is an endemic species?

• Species that can be found anywhere

• Animals that became endangered

• Organisms that can only be found in restricted habitat

• Plants that can undergo photosynthesis

A __________________ is a method used by biologists to identify and classify organisms systematically

based on similarities and differences.

• dolphin key

• dicotyledon key

• dictionary key

• dichotomous key

Biodiversity is a priceless treasure and a legacy of nature which should

be preserved. Choose two importance of biodiversity. (more than one correct answer)

• Recreational places

• To maintain the water level in the atmosphere

• Medical

• To classify organisms

Why is biodiversity important to ecosystems?

• It helps populations adapt to ecological changes.

• It increases at each level of the food chain.

How can humans best help an endangered species avoid extinction?

• they can feed the animals
• they can put the animals in a zoo
• they can protect the animal’s habitat
• they can take the animal to new habitats

Choose the correct pair of the classification of animals given above.

• Salamander : Mammal

  Turtle : Reptile

• Turtle : Reptile

  Pangolin : Mammal

• Zebra : Mammal

  Turtle : Amphibian

• Pangolin : Reptile

  Salamander : Amphibian

Plants are classified as non-flowering and flowering plants. Which of the following is flowering plant?

• Moss

• Fern

• Durian tree

• Conifer

What is the characteristic of this plant ?

(more than one correct answer)

• Leaves with network-like veins

• Dicotyledons

• Wooden stem

• Fibrous root system

Which of the following is the characteristics of animals above?

(more than one correct answer)

• Has three pairs of legs

• Has hard-outer shells

• Has segmented body

• Poikilothermic

State the factors that threaten the extinction of the above animals.

(more than one correct answer)

• Illegal hunting and high demands for animal products

• The use of chemical fertilisers and pesticides excessively

  to agricultural

• Uncontrolled logging activities

• The habitats of animals have been destroyed