Q: The electron beam scans the surface of the sample, usually coated with a thin film of which metal? Choices: - platinum - silver - copper - gold A:
gold

Q: Pacemaker cells stimulate the spontaneous contraction of cardiac muscle as a functional unit, called a what? Choices: - coenocyte - tapetum - adipocytes - syncytium A:
syncytium

Q: Q: What measurement is used to describe the amount of water vapor in the air? Choices: - precipitation - barometric pressure - heat - humidity A:
A: humidity

Question: Q: What is the process for developing knowledge called? Choices: - evolution - theory - creationism - science A:
Answer: science

*Question*
Q: What is produced when haploid gametes fuse in sexual reproduction? Choices: - deformity - cell cluster - isolated zygote - diploid zygote A:
**Answer**
diploid zygote

Q: What term means the force of attraction that holds together oppositely charged ions? Choices: - electron bond - magnetic bond - solvent bond - ionic bond A:
ionic bond