8.1 Abiotic & Biotic Components

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Worksheet 8.1 Form 4 Biology: Chp. 8 : Dynamic ecosystem ; The Abiotic & Biotic Components of the environment.

Name : ____________________________________________ Form : _____________________________________________ Date : _____________

Topic : Abiotic and Biotic Components of the EnvironmentActivity : Gather information

Procedure :. !or" in gro#p. $ather information from %nternet CD ' co#rse(are an) printe)materials abo#t the respiratory process in energy pro)#ction. *. Disc#ss the information that have gathere) in yo#r gro#p.+. Then ans(er all the follo(ing ,#estions.

A. The Biotic Components of an Ecosystem

1. Give definition of the following term :

Term Definition

1. !cology

". #ioticcomponent

$. A%ioticcomponent

&. 'umidity

(. Topography

). *icroclimate

". +omplete the chart %elow to ,now a%out the component of the environment.

-repare) by: -n. #liana bt. /#h). /#stafa

1

+omponent of the environment

1. ".


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$. The a%iotic component may affect the growth- di tri%ution and i e of the %iotic component . +omplete the chart %elow to howhow it/ affect:


Wa s how it affect the biotic com onent

Biotic com onent

p' value Temperature 0ight inten ity 'umidity Topography *icroclimate

Growth di tri%ution of

organi m

Ex anation

2 *o t organi mlive in an almo tneutralenvironment.2 certain a3uaticorgani men itive to p'change .2 certain planthave different p're3uirement togrow well. !g:a4 coconut tree 5al,aline oil

%4 potato plant 5acidic oil

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B. C assifyin! the Biotic components into trophic eve s

1. An eco y tem ha three main nutritional group :

". +omplete the ta%le %elow to define the following term :

Terms Definition1. Producer

". +on umer a4 Primary con umer %4 6econdary con umer c4 Tertiary con umer

$. Decompo er

&. Food chain

(. Food we%

). Trophic level

7. Pyramid of num%er

$. +on ider the following food chain : a4 gra e ra%%it na,e haw, %4 oa, tree in ect mall %ird owl For each food chain- draw a diagram to repre ent the pyramid of %ioma and another

diagram to repre ent the pyramid of num%er .

a4 %4


#iotic component

1. ". $.

$


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C. "nteractions between Biotic Components in #e ation to $eedin!

1. #iotic component interact with each other. Their interaction may either %e atemporary or a long8la ting one. There are four type of %iotic interaction uch a :

". +omplete the ta%le %elow to how the difference %etween the four type of %ioticinteraction .

Types of interaction Definition Characteristic Examp e1. 6ym%io i

a4.+ommen ali m

i. !piphyte


Biotic interactions

1. ". $. &.

a4

epiphyte

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ii. !pi oite

%4 Para iti m


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c4 *utuali m

". 6aprophyti m

$. Prey 8 predator

&. +ompetition


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8.1 Abiotic & Biotic Components