Barn owls have heart shaped discs while typical owls have round shaped ones. I think.
Only the 50 cent coin, known as yotin, is square shaped. All other coins are round. For a while the 5 florin note was replaced with a square coin but it's now minted as a round coin.
Polaris, the North Star, has been used for navigation in the northern hemisphere for centuries. It is reasonably static, while the Earth's rotation makes all the other stars appear to circle round it.
Post (pillow shaped) and maybe Quaker (round) , but I haven't seen them in a while.
The stems of the mints are square and stout
Because the Earth and all the planets move in orbits round the Sun, while the stars appear to be fixed if we disregard the Earth's daily rotation.
a plant cell has a large, oval shaped bubble looking vacuole, while the animal cell's is small and round, like a sphere
binary stars are two stars that orbit each other while supernovas and novas stars are stars that explode when it runs out of fuel
Cells can have various shapes depending on their function and location in the body. While some cells are cube-shaped, others are round, elongated, irregular, or even have more complex shapes. The shape of a cell is often related to its function and the role it plays in the body.
Staphylococcus and Streptococcus are both types of bacteria, but they differ in their shape and arrangement. Staphylococcus bacteria are round-shaped and form clusters, while Streptococcus bacteria are round-shaped and form chains. Additionally, they can cause different types of infections and respond to different antibiotics.
a galaxy is a collection of Stars and planets while a planet is simply a large mass of rock, in orbit round a star. If you wanted to be able to distinguish the two from each other by simply looking at them in the sky, this is impossible.
It's the other way round