Q: Echinoderms use pheromones to communicate with each other, and ascothoracican barnacles attach to echinoderms or corals. Given these facts, corals use what to communicate with each other among the following options: - Energy - pheromones - kinetic energy - produce light - heat produced - heat energy - Chemical energy - sound
A: pheromones

Q: Passive immunity lasts only as long as the antibodies survive in body fluids, and breast Milk contains antibodies. Given these facts, what can make passive immunity last among the following options: - resistance - sweating - Leptospirosis - breast milk - smoking tobacco - the environment - competition - fur seals
A: breast milk

Q: Seasons cause change to the environment, and environments reflect native habitats. Given these facts, what do seasons cause change to among the following options: - one celled organisms - an object - native habitats - coastlines - an external framework - body water - colors of the spectrum - our nearest star
A: native habitats

Q: Antigens are molecules that the immune system recognizes as foreign to the body, and rejection is a normal reaction of the body to a foreign object. Given these facts, antigens are molecules that the immune system recognizes as needing to be what among the following options: - welcomed into the body - it needs them - stored in the body - accepted into the body - major threat to health - Something that causes allergies - rejected from the body - members of their own species
A: rejected from the body