B cells play a crucial role in the defense of pathogens. They are responsible for producing antibodies that help fight the enemy.
The answer would be
D) Kicking a soccer ball
Skeletal muscle controls just about all of your body movement. When you are digesting lunch you are not moving. When your body is moving blood through arteries, your body is not moving. When your heartbeat is increasing you are not moving. But when you move to kick a soccer ball you are moving. Thats why this action would be completed by skeletal muscles.
The correct answer is 2.
A mutation can only be passed on to offspring if it occurs in the sex cell of the parent, which is what then forms the offspring. This renders all the other answers incorrect, because they do not happen in the gametes of ovaries or testes (the sex organs of females and males, respectively).
Oxygen has a partial negative charge, whereas hydrogen had a partial positive charge.
This means that water molecules are polar and can be used to dissolve a lot of chemicals, that's why water is such a popular solvent.
Hydrogen bond. Although other ones are equally as important such as a dipole-induced dipole