A. Earth worms
Because it can only flow one way
That easy..............<span>21 one is your technical answer according to todays rules but scientist used to think it was only 20 so 20 would be your answer</span>
the answer is four hope this helps :)
To show he presence of a trait you would need to follow it through multiple generations in a pedigree.
Answer:
Locomotion is essential for various internal and external bodily functions
Explanation:
Locomotion is the art through which our body exhibit various functions and also escapes various condition of environment.
For instance –
a) Through movement of limbs, actions such as running, walking, jumping, crawling, swimming, etc are performed.
b) Movement of body parts and joints helps in taking different comfortable postures.
c) Even some body parts move even when it is not essentially vital for the function being performed such as movement of eyeball and external ear while swallowing food.
d) Movement of nutrients and blood with in the circulation system and digestive system.
e) Movement of sense organs when exposed to extreme environmental conditions.
