Q: Some samples of matter appear to have properties of solids, liquids, and/or gases at the same time. this can occur when the sample is composed of many what? Choices: - turn pieces - large pieces - few pieces - small pieces A:
small pieces

Q: What happened to earth's species during the permian period? Choices: - evolution - duplication - division - mass extinction A:
mass extinction

Q: Q: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what? Choices: - bacteria - acids - particles - proteins A:
A: proteins

Question: Q: What does the placenta sustain during pregnancy? Choices: - the heart - the mother - the endocrine system - the fetus A:
Answer: the fetus

*Question*
Q: Interferons are produced in virally infected cells and cause them to secrete signals for surrounding cells to make what? Choices: - overwhelm proteins - resist proteins - Raising Proteins - antiviral proteins A:
**Answer**
antiviral proteins

(Q).
Q: What is the average kinetic energy of particles of matter? Choices: - momentum - magnetism - friction - temperature A:
(A).
temperature