Answer:
When one thing dies, or is taken away from the food web, then this could happen:
Let's say plants are taken away. Then, herbivores have nothing to eat, sot hey die. Then, carnivores have nothing to eat, and the same thing happens, etc.
Plants are the base of survival for every organism in nearly every ecosystem.
Rotating crops and using fertilizer replenish the soil with nitrogen, an essential element for all living things.
You answer would be B because half n half from ur parents
=2÷200
=1÷100
The ratio of 2m over 200cm is 2/100
hope it helps you!! stay safe healthy and happy!!!