The first organisms to appear in an area undergoing succession are known as the pioneer species. These organisms lead to a more biodiverse steady-state ecosystem.
The producers are the main source of the food production in the ecosystem. The producers are the organism, which convert the energy from the sunlight into the chemical energy. The consumers use this chemical energy for carrying out the metabolic processes in their body.
Without producers, the consumers cannot obtain their energy. Hence, the ecosystem without any producer would not survive.
Answer:
B - In real world conditions
Makes the most sense.....
<span>nerve cells need b 12 for proper functioning</span>
