Q: Timber, medicines, dyes, oils, and rubber are just some of the useful products humans derive from what? Choices: - roots - fossils - flowers - plants A:
plants

Q: What help should you use for disposing hazardous products? Choices: - biohazard unit - call poison control - first aid kit - guidelines on label A:
guidelines on label

Q: Q: What is the main artery of the systematic circulation called? Choices: - femoral - subclavian - carotid - aorta A:
A: aorta

Question: Q: What is the name for areas where there is overlap between closely related species? Choices: - mono zones - extinction zones - gap zones - hybrid zones A:
Answer: hybrid zones

*Question*
Q: Population size influences the chances of a species surviving, with very small populations generally at greatest risk of what fate? Choices: - adaptation - accumulation - mutation - extinction A:
**Answer**
extinction

(Q).
Q: What is the movement of substances across the membrane without the expenditure of cellular energy called? Choices: - inner cell transport - immune transport - active transport - passive transport A:
(A).
passive transport