Answer:
Cell membrane
Explanation:
It encapsulates and delimits the cell. It controls what goes into the cell and what goes out of it. It holds the cell organelles together. It maintains a homeostasis state.
Answer:
Off-pump coronary artery bypass
Explanation:
In this heart bypass surgery a vein or artery from another part of the body is taken and used as a graft to replace the blocked coronary artery. The benefit of this type of surgery is that there is negligible chances of rejection of the graft because the graft has been taken from the same body. A surgical cut is made inside leg, between the ankle and groin and one end of the graft is attached to coronary artery whereas the other end to the opening of aorta.
Radial artery of wrist is also common graft in heart bypass surgery.
Answer:
The correct option is B) Outer space
Explanation:
Most of the radiations emitted by the Earth are absorbed by the Earth;s surface. These radiations cause the Earth to get warm and also causes global warming. However, little of this radiation is reflected back towards the outer space. Hence, the correct option is B.
A sliding friction occurs as a fish swims through water.
