Cellular respiration occurs with a product of Carbon Dioxide (CO2)
An example of inertia could be when you are in a car and it stops. You know how your body suddenly jumps forward? That's inertia. Inertia is the tendency of a body to resist a change in motion or rest. In the same way, you jump backward when the car starts moving forward. So if you tried to play soccer or baseball without inertia, it would be difficult to score a goal or home run as the ball would try to resist changing direction.
The population increases due to the fact that birthrate becomes higher than the death rate.
6:
•picture on the left is a sperm cell, thing labelled is the TAIL
•picture on the right is a bacteria cell, thing labelled is PILI
7:
cilia are short hairs that are on cells where as flagella are very long hairs
therefore the structures below are FLAGELLA