Ques: Q: What do opposite charges do to one another? Choices: - strengthen - weaken - repel - attract A:
Ans: attract

Ques: Q: What organism is characterized by an incomplete digestive system and a single, tentacled opening? Choices: - annelids - prokaryotes - sponges - cnidarians A:
Ans: cnidarians

Ques: Q: Light has the properties of both a wave and what else? Choices: - atom - nucleus - electron - particle A:
Ans: particle

Ques: Q: Where does digestion begin? Choices: - spicule cavity - excretory system - oral cavity - gastrovascular cavity A:
Ans:
gastrovascular cavity