1) Which animal can communicate by singing? a) turtel b) frog c) bat d) whale 2) the fireflies communicate by using a) sound b) dance c) light d) language 3) Ant soldiers communicate by send ................... in case of danger. a) smelly massage b) light c) sound 4) Humans communicate by using ....... a) light b) sound c) language d) all the previous 5) ........................... materials allow most light to pass through a) transparent b) opaque 6) .......................... materials don`t allow light to pass through a) transparent b) opaque 7) Animals that have an excellent night vision for hunting, include...... a) snake and owl b) bat and owl c) owl and cat d) cat and snake 8) Painted surface .............. the incoming light rays a) absorbs only b) reflect only c) absorb and reflect d) allow to pass 9) Bees communicate by ............ a) light b) sound c) dance d) language 10) Chameleons have ......... shaped feet a) U b) V c) S d) M 11) Bats communicate by using ............... a) light b) echolocation c) writing d) internet

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