If when the immune system recognizes a foreign substance, antibodies are produced, then what happens when the immune system recognizes a foreign substance? Answer choices: - an area swollen with pus - The immune system fails - irradiation - Bacteria dies - Antibodies are formed - major threat to health - Something that causes allergies - Viruses reproduce
Antibodies are formed

(Question)
If something specialized to detect a stimulus is found mainly in the skin, then something specialized to detect a stimulus is found mainly where? Answer choices: - fields - humans - bushes - bats - a path - skin - retina - Birds
(Answer)
skin

Ques: If marine annelids go through a major transformation to be able to make larvae called trochophores that swim about by means of cilia, then marine annelids can make a swimming larvae called what? Answer choices: - barnacles - survive - graptolites - epidermal - Something to move - a trochophore - fertile - permineralization
Ans: a trochophore

(Q).
If creating paper makes the air dirtier, then what does creating paper do? Answer choices: - duplicate itself - Makes the air dirtier - Makes food - Cleans the air - converting electricity to heat - to move people - Plant growth is reduced - Lengthens tree life
(A).
Makes the air dirtier

Ques:If arthropods have no backbone, then what have no backbone? Answer choices: - insects - mammals - arthropods - humans - barnacles - fur seals - graptolites - bears

Ans:arthropods

Question: If aporcupine will extend it's quills when a fisher displays threatening behavior, then what will a porcupine do when it feels a fisher is displaying threatening behavior? Answer choices: - bite the fisher - decreases its bodily water - Change colors - extend it's quills - kill them - the body's largest organ - back away - fight the fisher
Answer:
extend it's quills