Answer:
open cluster
Explanation:
As the name suggests, an open cluster is a star cluster that is loose and disorganized.
Answer:
A
Explanation:
We do not gain the mass of the food we eat. Therefore, B is wrong. Our cells do not grow in size, they only grow in number. Therefore, C is wrong. Although the puppy's body does, in a way, stretch out, A is a better option. Therefore, D is likely to be wrong.