Module 1: Energy & Matter Review

Which two processes are opposite one another in terms of the chemical reaction taking place?

•  eating and sleeping

•  photosynthesis and respiration

•  raining and snowing

• movement and heartbeat

What is the ultimate source of energy on Earth?

• plants

• animals

•  sun

• water

How much energy is passed from one level to the next in a food pyramid?

• 1%

•  10%

•  90%

•  100%

A type of relationship that exists between two species where one benefits and the other is harmed is called ________.

• commensalism

• parasitism

• mutualism

•  predator-prey

Which of the following is the main way that water is returned to the ground?

• precipitation

• condensation

• runoff

• decomposition

Without ________, plants would not be able to carry out photosynthesis.

• chloroplasts

• mitochondria

• cell walls

• central vacuoles

What part of the carbon cycle are humans impacting the most at this time?

• decomposition

• respiration

• photosynthesis

• emissions of CO₂ by fossil fuel burning

Which of the following does not contain nitrogen so does not depend on the nitrogen cycle?

•  amino acids

•  nucleic acids

•  proteins

•  carbohydrates

What gas is most common in the air we breathe?

• water vapor

•  oxygen

• nitrogen

• carbon dioxide

Which of the following does not carry out photosynthesis?

• mushroom

• flower

• oak tree

•  grass