Q: The what is the number of wave cycles that pass a specified point in space in a specified amount of time? Choices: - vibrancy - intensity - density - frequency A:
frequency

Q: The level of carbon dioxide in the atmosphere is greatly influenced by the reservoir of carbon where? Choices: - before the oceans - in the earth - after the oceans - in the oceans A:
in the oceans

Q: Q: What part of the rainforest commonly has ferns and other ground plants? Choices: - forest floor - canopy layer - emergent layer - understory A:
A: understory

Question: Q: What fills the epidermal cells that make up fingernails and toenails? Choices: - cellulose - chromatin - amino acids - keratin A:
Answer: keratin

*Question*
Q: What do you call prokaryotes that do not need oxygen for respiration? Choices: - aerobic - chloroflexus - enzymatic - anaerobic A:
**Answer**
anaerobic

Q: The ancient greek philosopher aristotle thought that all matter consists of just four what, which he identified as earth, air, water, and fire? Choices: - ingredients - structures - compounds - elements A:
elements