Edin says the change in the seal population was caused by a change in the environment. .
Vada says the change was caused by a mutation.
• Miko thinks both Edin and Vada are correct.
Who do you think is right? Explain what happened to the seals over many generations.

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

The answer is texture

Centriole.centrioles are present in animal cells but are usually absent in plant cells.