Question: Choose your answer.

Which of these is a safe practice in a laboratory investigation when working with chemicals?
My Answer: wearing safety goggles when working with chemicals

Question: Choose your answer.

According to the endosymbiotic theory, double-membrane mitochondria originated as a result of some larger eukaryotic cells with flexible membranes engulfing smaller prokaryotic cells. Which of these explains where the outer layer of the double membrane of the mitochondria originated?
My Answer: the plasma membrane of the eukaryotic host

Question: Choose your answer.

What is the composition of the nucleus of an atom?
My Answer: protons and neutrons

Question: Choose your answer.

A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by
My Answer:
friction