Biology – Answwers

( 2 ai)

D – Butterfly net

E – Pooter

F – Quadrat

( 2 aii )

I – Handle

II – Net

III – Tube for sucking in tiny organisms

IV – Cork

V – Beaker

VI – Tube for applying sucking

VII – Frame

VIII – Wire guaze

( 2 aiii )

I – It is used to connect the net

III – It is used for collecting tiny organisms

IV – It prevents dirts from entering the suction tube

V – Containing the suctionate gas

VII – It gives support to the wire gauze

( 2 b )

D – For capturing insects such as butterfly

E – For sucking tiny vertebrates such as insects and spiders

F – For capturing and re – capturing of small organisms

3 ai)

– butterfly

– house fly

3 aii )

I – libial palp

Ii – antenna

Iii – thorax

Iv- fore wing

V – abdomen

Vi – antena

Vii – compound eye

Ix- dipitural wing

X – hind leg

3 b ) Vi – for detection of food or object

Vii – for vision

Ix – for taking off during flight

X – for balancing when at rest

Can also be for locomotion

3 c)

A – grasses / vegetation

B – dirty water

3 d ) presence of antena for flying

– presence of compound eye

– presence of probocis for sucking

1 ai

A is canine

B is molars

C is incisors

1 aii . I canine

II incisors

IV . Molars

1 aiii . A they are used for tearing and ripping food apart.

B they are used to chew foods .

C they are used for chopping and cutting food .

1 aiv . A they are pointed teeth

B They are strong and wide

C They are shaped like small chisels with flat but sharp ends , making

1 b )

i Use for tearing .

ii . use for chewing .

iii . use for cutting .

1 c)

i . It has a flat rigid surface

ii . It has a sharp edges .