Why do we say chloroplasts look like green footballs even though a lot of the time they look like perfect green spheres?

Explanation:

The football used in American Football is an oval. Chloroplasts can be spherical but also oval-shaped. For the rest of the world, football is what people in the U.S. call soccer. So a football can also be spherical in shape and thus chloroplasts can be spherical just like footballs are. Chloroplasts can also be disc-shaped.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.