Answer:
Natural and Basic resources.
they are needed by plants to grow
<span>B. areas of high population density will have greater needs and deplete resources available</span>
Answer: radioactive as in blow up and decay means to vanish slowly pretty much
Explanation: blowing up and slowly vanishing
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Answer: Resources such as rocks, soil, water, and air, nonliving things that help to meet our needs. You learn that water and air are renewable resources that can be replaced quickly. You learn that soil and rocks are non-renewable and cannot be replaced quickly. Comment Below if this helped! Brainliest Would be amazing!
Answer:
Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>
Explanation:
Humoral immunity is defined as the immunity which is mediated by several macromolecules presnet in the extracellular fluids such as antibodies, certain antimicrobial peptides, and complement proteins.
Humoral immunity allows to distinguishes two groups of foreign substances. it involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood. </u>
Humoral immunity begins when an antigens bind to B cells. Interleukins or helper T cells provides a secondary signal to the B cells that activates a B cell and allows B cell proliferation. which roduces produce plasma cells. The plasma cell then produces antibodies which are identical to the specific antigen. The antibodies are the released and circulate through the body, binding to antigens. B cells the further produces memory cellss for future immunity.
So, Humoral immunity involves <u>B cells</u> and<u> recognize antigens or pathogens in the lymph or blood.</u>
