I don’t know why they make everyone type more than 20 characters but B sounds like the most reasonable answer.
Subtract the atomic number from the atomic mass to get the neutrons
The answer is B.) animals at the end of the food chain would not get enough food to stay alive.
Answer:
Autotrophs are the organisms which have ability make their own food using various sources of energy. Examples are can green plants and algae such as <em>Spirogyra, Chlorella, Volvox</em> make their food using sunlight carbon dioxide and water. they are photoautotrophs
Some bacteria are also make their food using chemical energy through oxidation. They are chemoautotrophs.