Q: Represented in equations by the letter "g", what pulls objects down to the earth's surface? Choices: - energy - motion - light - gravity A:
gravity

(Question)
Q: Constriction and dilation allow the circulatory system to change the amount of blood flowing to which body parts? Choices: - arteries - tissues - muscles - organs A:
(Answer)
organs

Ques: Q: What is it called when two waves in the same medium pass one another? Choices: - accumulation - frequency - synchrony - interference A:
Ans: interference

(Q).
Q: What are the two types of fats? Choices: - thick and thin - full and empty - liquid and solid - saturated and unsaturated A:
(A).
saturated and unsaturated

Ques:Q: What are ionic substances completely held together by? Choices: - thermal bonds - localized bonds - magnetic bonds - ionic bonds A:

Ans:ionic bonds

Question: Q: When changes in the genes of a species result in a new species, the process is called what? Choices: - Classic Evolution - simple evolution - similar evolution - biological evolution A:
Answer:
biological evolution