Raise the thumb up or lower it down a kind of ___
colors
waves
codes
Fish extracts oxygen out of the water by ...................
fins
gills
skin
Animals that live in a hot environment have ........................ ears to help her, and allow heat to escape to be cool.
long
small
short
The ability to turn the head in all directions ,....................
owl
Snakes
dolphins
The organ responsible for the sense of sight____
the eye
the nose
the ear
Adel wanted to make a suitable box through which he could see what was inside without having to open it. What material should be used?
transparent plastic.
carton
Wood
Eagle is bird of prey (who eats meat). Its beak is strong and sharp. This structural adaptation helps it to .....................
find a shelter
escape.
ripping meat
What feature of light helps you see yourself in the mirror?
short rays
reflection
refraction
Which of the following allows pass the light through it?
glass
wood
moon
Stomach is a part of the digestive system that ..........
converts solid food into liquid
delivers food into the esophagus.
absorbs nutrients from food
Surface that regularly reflects light ...............
rough and dark
smooth and shiny
dark with impurities
To communicate through the sense of sight we need ............ ;
making sound
hearing music
availability of light
Animals can communicate with each other through____
sounds and lights
writing
talk
What is adaptation?
The process by which new species appear.
A process of getting rid of harmful substances in living things.
Feature owned by living things to help them survive.
Each of the following is considered a source of light except .........
the lamp
the sun
What happens to living things that can't adapt to the conditions of its environment
they can't stay in the environment
keep their number constant
they can survive in the environment
.............. panting to lower her body temperature.
Lions
Foxes
Bats
Animals can communicate with each other by... ......
reading.
Writing.
the Sound
_____Your sensation of hot weather depends on sensory receptors in the
nose
eare
The light-reflecting materials like_______
plastic
mirrors
paper
Humpback whales use singing for...............
hide from enemies
having fun with whales
communication
When you put your hand on a hot surface, the brain sends a message to the muscles and the action that comes from you immediately after it is to...
Keep placing your hand
pull your hand away from a hot
You will do nothing
Which of these examples of hid or a camouflage?
the fox is golden like its environment.
Camel broad feet
Camel hump
Sameh drives his bike and while that he hears a car behind him, he turns away so as not to hit it. The system that received a signal made Sameh realize that is .....
the circulatory system
the nervous system
the digestive system
When you determine a sweet or bitter taste, you have used___
the tongue
Adaptations include changes that ...............in the environment.
reduce reproduction process
reduce life span for individuals
improve species survival
All of the following are components of the nervous system except____
heart
nerves
brain
One of the behavioral adaptations that help the animal protect itself from enemies __
reproduction
extinction
blend in
Our eyes help us see what's around us. What is the organ responsible for perceiving what we see with our eyes? ...........
The stomach
The esophagus.
The brain
When light falls on a dark surface_____
the surface absorbs the light
the light is refracted
light passes through it.