Invertebrates have their skeleton on the outside. This hard shell defines their shape.
If you drop small particles like sand they roll and form a natural angle. (Just steep enough to be held by friction.) Further particles keep rolling and the angle stays the same. This makes the natural shape.
Yes, spiders are invertebrates. They belong to the class Arachnida, which is a group of arthropods that includes spiders, scorpions, ticks, and mites. Invertebrates do not have a backbone or internal skeleton made of bone.
1.Sun's gravitational force due which it revolves around the Sun. 2.Earth's gravitational force which keep its Rotation/wobble around it's own axis. 3.Interplanetary and natural satellites gravitational forces which keeps the motion of universe in round shape as earth.
An orange is an everyday object that has a shape similar to Earth, with a round and spherical shape.
the shape of the earth is not flat. it has a spherical shape. its slightly flattened at the poles to give a nearly spherical shape hence; the earth's shape is better described as a geoid which means the earth's shape
Yes, they don't have a bony skeleton. Their hard outer casing is called an exoskeleton and gives the body its shape.
yess
yes they are
yes
No they have bilaterial symetry.
Invertibrates
They are invertibrates
Invertibrates.
under the ground
invertibrates
Invertibrates
dont step on them.