GS Book 5 Unit 1 (Ch 1-3)

Reptiles breathe with _____.

• gills

• lungs

• skin

• feathers

Some tall trees in tropical rainforests are supported by _______.

• shallow roots

• deep roots

• aerial roots

• buttress roots

The feathers of emperor penguins are short, thick and _______.

• dry

• spikes

• waterproof

• spotted

Insects have a pair of _______ . They are the sensory organs.

• antennae

• thorax

• abdomen

• legs

Wetland soil lacks ______. The stems of lotuses have holes to facilitate gaseous exchange.

• nutrients

• water

• sunlight

• oxygen

Grasshoppers' back legs are lined with ______ for protection.

• hair

• poison

• spikes

• eyes

Climbing plants grow by twining their _______ around trees to reach more sunlight.

• stems

• roots

• leaves

• wings

Mosses and ferns reproduce by ________.

• leaves

• flowers

• seeds

• spores

Some plants in tropical rainforests have smooth leaves to shed excessive _____.

• oxygen

• rainwater

• nutrients

• soil

Pelicans' beaks are long and large with a throat _______ under it.

• skin

• hair

• pouch

• backbones