that is has a nucleus and also a cell wall
Answer:
Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen.
Explanation:
Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen. By respiration, O2 is removed from the atmosphere and replaced with CO2. However, these processes are not balanced. Some organic matter is not oxidized. (I'm very sorry if I'm wrong but I believe it's that)
Six distinct antibody subtypes can be produced in response to the antigen.
It is assumed that a certain antigen has six distinct antigenic determination sites.
To find out how many various types of antibodies this antigen can trigger production of, read on.
A molecule, chemical structure, foreign particle, pollen grain, or any other substance that can attach to a particular antibody or T-cell receptor is referred to as an antigen.
An epitope is an antigenic determinant, which is the component of an antigen that the immune system recognizes.
An antibody is a large, Y-shaped protein that the immune system employs to recognize and destroy foreign substances like dangerous germs and viruses.
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It is a process that causes rock to break into little pieces.
Modern day whale species, have very small pelvic bones in comparison to their body size, and also they are useless. This is because this bones in the whale body are remnants from the time when their ancestors were land dwelling creatures, thus they had legs as the typical land mammal has. But during their evolution, as their ancestors were starting to adapt more to the water, the legs started to disappear, but the bones inside of the body remained, even though they were of not use. Even though millions of years had passed since this bone is useless, it still exists, and the reason for that is that there hasn't been any evolutionary pressure for it to not exist, since it is not causing any disadvantage into the movement and lifestyle of the whales.