11. protect the cell and keep its shape.
12. chloroplast
Answer: False and Kinda true.
Explanation:If ya don't exercise your body will become weak and will die. same goes with old ppl. unless you are too old to exercise you can still take a walk. unless you have a wheel chair or no legs or a leg condition.
Answer:
fringes move farther
Explanation:
The relation between the distance between the fringes is given by
y = Dλ/d
where, D is the distance between the plane of slit and the screen
d is the width of slit, λ is the wavelength of light used.
As the slit made narrower, that means d decreases, the value of y increases, that means the fringes move farther.
