The lack of any physical mechanism to change its size significantly.
The same thing that keeps you from floating out into space. Gravity.
Isotonic solution, where the concentration of solutes inside and outside the cell is the same, will keep the cell the same size with no change. This is because there is no net movement of water into or out of the cell, maintaining equilibrium.
Mercury and Mars are roughly the same size, with Mars being only slightly larger in terms of diameter. Venus is also similar in size to Earth.
Venus is often considered Earth's "sister planet" because it is very similar in size, with a diameter about 95% that of Earth.
No. Neptune is much larger than Earth.
my guess is earth is the same size as earth
The same thing that keeps you from floating out into space. Gravity.
Isotonic solution, where the concentration of solutes inside and outside the cell is the same, will keep the cell the same size with no change. This is because there is no net movement of water into or out of the cell, maintaining equilibrium.
no the earth and the moon are not the same size the sun is about 100 times bigger than the earth
A white dwarf can be roughly the same size as Earth.
The Earth and Moon appear the same size in the sky when viewed from Earth because the Moon is about 1/4 the size of Earth and is about 1/4 as far away from Earth as the Earth is from the Moon. This alignment creates the illusion that they have the same apparent size.
Yes - the same gravity that makes the apple fall from the tree - keeps the earth in orbit around the sun.
No planet is exactly the size of Earth. Venus is close to Earth's size but slightly smaller.
no
same size
pretty close to the same
No