BIO 156 PRACTICE SOLUTION COMPLETE QANDA STUDY REVIEW PACK

BIO 156 PRACTICE SOLUTION COMPLETE
QANDA STUDY REVIEW PACK

●● What is our current rate of extinction?
Answer: 1000x faster than the normal rate


●● Explain what the largest cause of extinction is:
Answer: Humans and human nature


●● List the order of components of "organization of life" (smallest to
largest):
Answer: atom, molecule, cell, tissues, organs, organisms, population,
community, ecosystem, biosphere (earths crust, atmosphere)


●● Which stage in organization of life does life emerge?
Answer: The cell


●● Identify two categories in which all living things are classified:
Answer: Prokaryotic and eukaryotic


●● Flow of energy and cycling of materials in the world of life:

, Answer: producers to consumers, they get energy from sunlight and the
cycle continues


●● Define homeostasis:
Answer: process by which organism keeps internal conditions


●● List three things all living organisms strive for:
Answer: 1. growth
2. reproduction
3. pass on DNA


●● Define biodiversity:
Answer: scope of variation among living organisms


●● Define nucleus:
Answer: double-membrane sac that encloses DNA


●● Which classification group do organisms with nuclei appear?
Answer: Eukaryotes


●● Which classification group do bacteria and archaea appear?
Answer: Prokaryotes