BIO 156 EXAM 2026 STUDY GUIDE BUNDLED
QUESTIONS SOLUTIONS WELL ILLUSTRATED
PRACTICE MATERIAL
◉ 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
◉ Define species: Answer: unique kind of organism
◉ Explain order of taxa from most to least exclusive: Answer: Domain,
Kingdom, Phylum, Class, Order, Family, Genus, Species, Common
name
QUESTIONS SOLUTIONS WELL ILLUSTRATED
PRACTICE MATERIAL
◉ 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
◉ Define species: Answer: unique kind of organism
◉ Explain order of taxa from most to least exclusive: Answer: Domain,
Kingdom, Phylum, Class, Order, Family, Genus, Species, Common
name
