What is the struggle for food, space and limited resources called

Scarce

Explanation:

If something is scarce, there isn't much of it around. Scarce, meaning “restricted in quantity,”

Intra Specific Competition

Explanation:

Competition occurs when organisms existing at the same time and

in the same place struggle for the same limited resources. This is

one of the three major types of interactions among organisms, the

other two being predation and symbiosis.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

which