Answer:
soo sorry i dont know the answer
Explanation:
Answer:
A blood donor is a person who donates blood and a blood recipient is a person who receives donated blood.
Explanation:
1. The cell wall has lignin (hard substance): to prevent the xylem vessel from collapsing and withstand high pressure.
2. The absence of protoplasm (nucleus + cytoplasm) and cross wall: to allow water to move through the lumen easily.
Hope it helped!
Answer:
more flexibility in movement
Explanation:
it allows the worm to pass waves of movement along its body to move through loose earth.
Homeostasis and transport of molecules