Nucleus is the answer your looking for I'm positive its correct. If you have anymore questions feel free to post them.
From sleeping because sleeping gives us energy
The biconcave cells in blood that lack nuclei when they are mature are the red blood corpuscles.
<u>Explanation:</u>
The blood contains a combination of cells especially the Red blood corpuscles, white blood corpuscles and the blood platelets. The major function of the Red blood corpuscles is to carry oxygen and supply to all the parts of the body from the lungs and similarly carry carbon dioxide and supply to all parts of the body . To facilitate this it does not have a nuclei.
Answer:
It is a process by which greenhouse gases allow the sun’s light to penetrate the atmosphere but stop the heat from escaping
I hope your talking abt the green house EFFECT which is related to global warming and not greenhouse where plants grow
