Answer: its usually a blue line with triangles facing the way its moving
Explanation: a warm front would be a red line with half circles.
There are over 400 species of sharks. The most common are Spiny Dogfish Shark, the Blue Shark, and the Sandbar Shark.
Transfer of energy from one living to another in a food chain is called pyramid energy.
So simply we can energy pyramid shows how much energy passes from one living to another in a food chain.
Food chain always begins with autotrophs i.e. green nature (plants). Which becomes producers.
There are different types of organisms based on food habits and their environment.