Question: Q: What are the two layers of the skin? Choices: - dermis and epithelial - sebaceous and salivary - epithelial and endometrial - epidermis and dermis A:
Answer: epidermis and dermis

Question: Q: In flowering plants, male gametophytes are in grains of what? Choices: - viruses - bacteria - nitrogen - pollen A:
Answer: pollen

Question: Q: What is pollution that enters water at just one point called? Choices: - entry point pollution - point supply pollution - point supply pollution - point source pollution A:
Answer:
point source pollution