Q: What term is used to describe a simple diagram that shows one way energy flows through an ecosystem? Choices: - water cycle - food pyramid - fuel chain - food chain A:
food chain

Q: With the exception of water, what accounts for more mass than any other component of living organisms? Choices: - hormones - nervous tissue - fats - proteins A:
proteins

Q: Q: Breasts are considered accessory organs of what body system? Choices: - digestive system - nervous system - lymphatic system - female reproductive system A:
A: female reproductive system

Question: Q: The important equation pv = nrt holds true for substances in what state of matter? Choices: - solids - liquids - products - gas A:
Answer: gas

*Question*
Q: Overharvesting is a serious threat particularly to which species? Choices: - aerial species - amphibious species - terrestrial species - aquatic species A:
**Answer**
aquatic species

(Q).
Q: What does the human protein cytokine help fight? Choices: - mutations - parasites - toxins - infections A:
(A).
infections