Answer:
astro,bio,and celluar
Explanation:
there are many diiferent types of scientists
Biotic factors are the living things in any environment, while abiotic factors are the nonliving things.
So, in the Sahara desert the living things (biotic factors) would be the animals and plants.
The nonliving things (abiotic factors) would be the sunlight, temperature, dirt, etc.
you draw a pyramid and split it into different levels to show the flow of energy between different trophic levels
The answer would be the ligament.
