Q: What is the study of how living things interact with each other and with their environment? Choices: - scientology - biology - geology - ecology A:
ecology

Q: What is the matter through which sound waves travel? Choices: - dust - mass - air - medium A:
medium

Q: Q: Time, mass, length, and temperature are considered to be what kinds of units? Choices: - support - measurement - unitary - base A:
A: base

Question: Q: The kidneys help control acid-base balance by excreting _____ and generating bicarbonate that helps maintain blood plasma ph within a normal range? Choices: - magnesium ions - sodium ions - lithium ions - hydrogen ions A:
Answer: hydrogen ions

*Question*
Q: What type of ionic compound is formed from acid and bases reacting with each other? Choices: - isolated - common - dry - salt A:
**Answer**
salt

(Q).
Q: Where do polychaete worms live? Choices: - lakes - digestive tract - garden soil - the ocean floor A:
(A).
the ocean floor