Answer:
it is called gene pool...
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
The correct answer is option D
The main cause of global warming is the green house gases that contributes more towards global warming.
The carbon dioxide produced from the transportation is the main green house gas. Transportation being the major source of carbon dioxide contributes towards global warming.
Reducing the amount of green house gases will help in the reduction of the global warming.
Food is chewed in the mouth because it helps you break down larger particles of food into smaller particles this well help in swallowing and digesting your food. Without being able to chew it is most likely for you to get constipated or choke
