2019 WAEC BIOLOGY PRACTICAL EXPO

 

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[1ai) The branch of biology that involves the use of specimen ABCDE and F is ecology
(1b) Functions👇🏾👇🏾👇🏾

SPECIMEN A:

They are used to measure the temperatures of different metals, liquids, gases and other materials.

Specimen B:

Rain gauge are used to measure rainfall.


Specimen C:

It is used to measure length of different objects.


Specimen D:

Sweep nets are used to collect arthropods such as insects from long grass and other types of vegetation.

Specimen E:

It is used to indicate the direction of the wind.

*(  2d )*

- it has hollow shaft that make it light weighted

- it is hairy do easy propulsion through the air

- the barbs are closely packed

      

       *(2dii)*

- it has green pigment(chlorophyll) for trapping sunlight

- it is exposed for easy access to atmosphere

(4cii)
(i) Both have antenae
(ii) Both possesses flying wings
(iii) Both have chewing mouth parts

(4di)
Biting and chewing

(4dii)
Grass or leaves

(4e)
DRAWING

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