Al has a pet cat. one day he observes that it is scratching and urinating on tree trunks in his yard. what behavior is al's cat displaying?
protection
predation
territoriality

The behavior Al's cat is displaying is TERRITORIALITY.

The cat is marking his territory so that whatever animal comes in Al's yard, they will know that a cat lives there because they can smell his urine and identify his scratches.

Animals who arrives in the cat's territory will be aware of possible danger that the cat may inflict on them for tresspassing his territory. Urine and tree scratches are used as deterrent for other animals from venturing farther in the yard.

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 correct answer is  b)