Q: Which types of waves are used for cell phones and radar? Choices: - light waves - thermal waves - sound waves - microwaves A:
microwaves

(Question)
Q: How many chromosomes do mature gametes contain? Choices: - 19 - 13 - 17 - 23 A:
(Answer)
23

Ques: Q: What is the name for the organs behind the head of a fish that absorb oxygen from water? Choices: - pores - alveoli - lungs - gills A:
Ans: gills

(Q).
Q: Melting ice and grinding wood into sawdust are examples of what? Choices: - chemical changes - reversible changes - unpredictable changes - physical changes A:
(A).
physical changes

Ques:Q: Scientists around the world study speciation, documenting observations both of living organisms and those found in the fossil record. as their ideas take shape and as research reveals new details about how life evolves, they develop models to help explain what? Choices: - spontaneous mutation - creation theory - food chains - rates of speciation A:

Ans:rates of speciation

Q: How many alleles comes from each parent? Choices: - none - two - three - one A:
one