Please heip i am giving away brainiliest for the best answer Which substance produced by the immune system is involved in both active and passive immunity?

A. antibiotic

B. antibody

C. vaccine

d. mucus

no dam links

Donde se encuentra el adn nuclear en un organismo eucariota?

What function does a limb serve in each animal how are the limb bones of the four animal similar based on the similarities what can be inferred about the evolution of the poor animals

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit