Q: The existence of what tiny, fundamental particles of matter was first proposed in the 1960s? Choices: - atoms - molecules - neutrons - quarks A:
quarks

Q: Reproduction in prokaryotic cells is by what process of growth, enlargement and division? Choices: - mitosis - budding - photosynthesis - binary fission A:
binary fission

Q: Q: What can be worn to protect hands and skin from harm? Choices: - splints - masks - filters - gloves A:
A: gloves

Question: Q: In genetics, what do you call characteristics that are passed from a parent to child? Choices: - mutations - similarities - habits - traits A:
Answer: traits

*Question*
Q: Inside each lymph node is a honeycomb of connective tissue with spaces filled by what? Choices: - platelets - hemoglobin - red blood cells - white blood cells A:
**Answer**
white blood cells

Q: Q: What are specialized cells in the brain that monitor the concentration of solutes in the blood called? Choices: - staurikosaurus - sporozoans - ionconcentrate - osmoreceptors A:
A: osmoreceptors