Question: Choose your answer.

Organisms that reproduce asexually generally have offspring that are

OPTIONS:
- unicellular.
- multicellular.
- genetically varied.
- genetically identical.
My Answer: genetically identical.

Question: Choose your answer.

The average temperature of the surface of Earth has increased approximately 1C in the past century. Which reason best explains this increase in temperature?

OPTIONS:
- higher levels of oxygen in the atmosphere
- lower levels of ozone in the atmosphere
- higher levels of carbon dioxide in the atmosphere
- lower levels of nitrogen in the atmosphere
My Answer: higher levels of carbon dioxide in the atmosphere

Question: Choose your answer.

A student is writing a report on volcanoes. What should the student include to best help explain how a volcano works?

OPTIONS:
- a photograph of an active volcano
- a map showing the location of a volcano
- a table of famous volcanoes and last known eruptions
- a diagram showing the structure of a volcano
My Answer: a diagram showing the structure of a volcano

Question: Choose your answer.

A scientist is comparing two body cells of a multicellular organism. Which of the following is most likely identical?

OPTIONS:
- shape of cell walls
- number of mitochondria
- shape of cell membranes
- number of chromosomes
My Answer:
number of chromosomes