I feel the answer is cell membrane .
The cell membrane is a semipermeable protection and covering for the cell.
Please mark me as brainliest, if this helped.
Answer:
The total length will be "10 units". A further explanation is given below.
Explanation:
The given points are:
R(−2, 4)
S(3, 4)
T(3, −1)
On applying the distance formula,
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
and,
⇒ 
⇒ 
⇒ 
⇒ 
Now,
The total trail length will be:
= 
= 
= 
Answer:
the answer is :
Lane 3 contains the longest DNA fragment
The seeds are enclosed because it's the plants way of protecting them.