Ques: Q: What type of waves start when a source of energy causes a disturbance in the medium? Choices: - fluid waves - mechanical currents - magnetic waves - mechanical waves A:
Ans: mechanical waves

Ques: Q: The light-sensing cells in the retina are called rods and what else? Choices: - sensor cells - stents - light cells - cones A:
Ans: cones

Ques: Q: Energy is lost as heat between each trophic level due to the second law of what? Choices: - reactions - particles - chemistry - thermodynamics A:
Ans: thermodynamics

Ques: Q: Strong, stable bonds between carbon atoms produce complex molecules containing chains, branches, and rings; the chemistry of these compounds is called what? Choices: - animal chemistry - inorganic chemistry - nuclear chemistry - organic chemistry A:
Ans:
organic chemistry