To communicate through the sense of sight we need ............ ;
hearing music
making sound
availability of light
Humpback whales use singing for...............
hide from enemies
having fun with whales
communication
What is adaptation?
A process of getting rid of harmful substances in living things.
Feature owned by living things to help them survive.
The process by which new species appear.
Animals can communicate with each other by... ......
reading.
the Sound
Writing.
Eagle is bird of prey (who eats meat). Its beak is strong and sharp. This structural adaptation helps it to .....................
find a shelter
ripping meat
escape.
Animals can communicate with each other through____
writing
talk
sounds and lights
What feature of light helps you see yourself in the mirror?
short rays
reflection
refraction
When light falls on a dark surface_____
light passes through it.
the surface absorbs the light
the light is refracted
All of the following are components of the nervous system except____
nerves
heart
brain
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 digestive system
the nervous system
the circulatory system
What happens to living things that can't adapt to the conditions of its environment
keep their number constant
they can survive in the environment
they can't stay in the environment
The organ responsible for the sense of sight____
the ear
the eye
the nose
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 brain
The esophagus.
Adaptations include changes that ...............in the environment.
reduce reproduction process
reduce life span for individuals
improve species survival
.............. panting to lower her body temperature.
Foxes
Bats
Lions
Raise the thumb up or lower it down a kind of ___
waves
colors
codes
When you determine a sweet or bitter taste, you have used___
the tongue
Which of the following allows pass the light through it?
wood
glass
moon
Animals that live in a hot environment have ........................ ears to help her, and allow heat to escape to be cool.
long
short
small
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.
Wood
carton
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...
pull your hand away from a hot
You will do nothing
Keep placing your hand
One of the behavioral adaptations that help the animal protect itself from enemies __
reproduction
extinction
blend in
The ability to turn the head in all directions ,....................
Snakes
dolphins
owl
The light-reflecting materials like_______
mirrors
paper
plastic
Surface that regularly reflects light ...............
smooth and shiny
dark with impurities
rough and dark
Each of the following is considered a source of light except .........
the sun
the lamp
Which of these examples of hid or a camouflage?
Camel hump
the fox is golden like its environment.
Camel broad feet
Stomach is a part of the digestive system that ..........
delivers food into the esophagus.
converts solid food into liquid
absorbs nutrients from food
_____Your sensation of hot weather depends on sensory receptors in the
skin
eare
nose
Fish extracts oxygen out of the water by ...................
fins
gills