They need it to grow healthy
Competition
- when space is full pack organisms compete for resources and the sooner the
resources are gone. Predation - organisms feed on and kill animals lowering
their population growth and the prey population growth, same as herbivore and
human prey. Disease - again feeds on hosts. Stress from overcrowding - females
could kill offspring. Hurricanes (density-independent limiting factors).
Iron, oxygen and water react with the iron creating a substance known to us as rust.
Hope this helps.
Eukaryotic cells posses a nucleus the purpose of the nucleus is it stores DNA which is the genetic material for the cell DNA acts as an instruction manual for the other organelles in the cell. While prokaryotic cells do not have a nucleus they still have dna but it’s floating around freely
I have no idea what that means but the answer is b
