true or false : Speaking is the only way of communication between people.
false
Write the scientific term of each of the following : An animal that can sense the body heat of its preys at night, by using a special part on its head.
snake
True or false 1. The agama lizard blend in with big green trees in its environment, to hide from its enemies.
false
If you know that the color of desert jerboa is yellow like sand, as an structural adaptation : How does this adaptation help jerboa to survive ?
Yellow color of jerboa allows it hides easily in sandy and rocky environment, so it can sneak up on its prey and hide easily from its enemies.
Write the scientific term : A large muscle in the human body that contracts during breathing in and relaxes during breathing out
diaphragm
True or false : .Eyes are one of the five senses, on which animals and humans depend to see the surroundings
true
Write the scientific term of each of the following : The visible form of energy, that enables us to see.
light
Cross out the odd word : Palm tree — Cactus plant — Mangrove tree — Barbary fig.
Mangrove tree (All items live in desert habitat, while mangrove tree lives in salt water habitat).
complete : Huge eyes of owls and ………….. help them to gather more light for excellent night vision.
tarsier
complete : A group of fireflies can change their own…………………. to match the flashes of another group of fireflies to communicate
flash pattern
Write the scientific term of each of the following : The season in which the humpback whale produces low-pitched sound.
summer season (feeding season)
Cross the odd word Brain — Spinal cord — Nerves — Lungs.
Lungs (All items belong to the nervous system, while lungs belong to the respiratory system).
choose
b. humans
Give a reason for the following : Gills is a unique structural adaptation in fish.
Because it helps fish to breathe under water
choose
d. the light that bounces off the membrane of the back of their eyes
Echolocation property is used by bats and ……………… to locate their preys.
dolphine
What happens if ... ? The warm blood vessels and cold blood vessels in penguin's feet are not weaved around each other
The blood in penguin’s feet will be very cold and it will not Be able to walk on ice
true or false : The sense of hearing of dolphins is stronger than that of human
true
choose
b.sight
choose
d. polar bear