The definition of speciation is the formation of new and distinct species in the course of evolution.
Answer:
Engine is very much similar to the muscular system in a car.
Explanation:
The system is made up of the tissues which work with skeltal system to control the movement of the body is called Muscular System. In a car the engine is very much similar to the muscular system. They both help their systems to move. Without them the car or body would not going to operate.Like the human body car parts are also specialised & perform specific tasks, but they all depend on each other.Many would compare the engine of the car with heart of human body.The heart is the engine of the body just like the car. Our brain is very much similar to the the car's computer system or CPU.Every car is powered by an engine and most cars use an internal combustion engine which runs on gasoline.A car's overall power is a function of the size of engine as well as the factors such as timing of combustion and the type of transmission used.
From the options, I would say it would be option B.
Answer: Lactobacillus
This kind of cell would be considered a friendly cell, a cell that would protect your body. But, it's more into animals then anything else. But, there's all kind of these kind of cells, that's why they can be into any kind of animal and human. Hope this helps.
<span>The sensory and motor nerves in the body are present in the reflex arc. Or just the nervous system and muscle groups. Hope that helps!</span>