biology form 5 chapter 9

Which one is the wrong habitat for animal ?

• worm in soil

• snake in smadjiwa

• frog in pond

• tiger in forest

Which one is not related to niche of wormsoil ?

• Loose the soil

• as food for other consumer

• as carnivor in food chain

• return nutrients back to soil

An ecosystem is a number of communities that live together in one habitat, interacting with each other including with non -living components (abiosis) such as water, air and soil.

• Yes

• No

Which one is not biotic components ?

• Consumer

• Decomposer

• Parasite

• Producer

Abiotic components :

• Temperature

• Air humidity

• pH value

• Microclimate

Which type of organism is placed at the first trophic level ?

• Autotroph

• Herbivor

• Omnivor

• Heterotroph

Which type of organism is placed at second trophic level ?

• herbivor

• carnivor

• heterotroph

• autotroph

Which of the following organism obtains nutrients from decaying substances ?

• Commensal

• Parasite

• Host

• Saprophyte

.

• I and II

• II and III

• I and IV

• III and IV

.

• A

• B

• C

• D