There are _________ (number) planets in the Solar System
Eight
In oceans there is salt water, but in rivers there is __________ water
fresh
This organelle is responsible for plant cells shape
Cell wall
Plants absorb water from the soil through their.....
roots
How many legs does a spider have?
8 legs
This planet is known as the twin of the Earth
Venus
The ozone layer is located in the ________sphere
strato
Cells that have no nucleus are called...
Prokaryotic
Pollinators look for the ____________ of the plant
flowers
Invertebrates are animals without a .....
backbone
The 4 outer planets are known as ________ giants
gas
The increse of CO2 levels in the atmosphere causes ....
Global warming
Some cells have a tail they use for moving around. This tail is also known as a...
Flagellum
To make their own food plants .....
photosynthesize
Some mammals, such as the _________, lay eggs
platypus, echidna
In the Universe there are small rocky bodies orbiting around the Sun known as...
asteroids
Which layer of the atmosphere contains the Moon?
None
Cells are so small that can only be seen under the ......
microscope
During the night plants only.....
breathe
What does it mean "gastropods"?
feet in the belly
Ceres, orbiting between Mars and Jupiter is a ________ planet
dwarf
Purified water needs a further treatment to became drinking water. Which one?
The addition of chlorine
The nucleus of the cell stores the ________________________ inside it
genetic material /DNA
Why most plants are green?
Because plant cells have a green pigment called chlorophyll
This type of vertebrates are said to have a double life
Amphibians