Passed Answers 2025-2026 Updated.
Biology is.... - Answer the scientific study of life
Define what life is: - Answer 1. order
2.reproduction
3. growth and development
4. energy processing
5.responses to environment
6. regulation
7. evolutionary adaptations
Order - Answer life is highly organized; living cells are the basis of the organization
reproduction - Answer organisms reproduce their own kind
growth and development - Answer consistent growth + development controlled by inherited
DNA
energy processing - Answer use of chemical energy to power an organisms activities and
chemical reactions
responses to environment - Answer ability to respond to environmental stimuli
regulation - Answer ability to control an organisms internal environmental with limits to
sustain life
evolutionary adaptations - Answer adaptions evolve over generations as individuals with
traits best suited to their environment have greater reproductive success and pass their traits to
offspring
biosphere - Answer all of the environments on earth that support life
ecosystem - Answer all the organisms living in a particular area and the physical components
with which the organisms interact
,community - Answer the entire array of organisms living in a particular ecosystem
population - Answer all the individual of a species living in a specific area
organisms - Answer an individual living thing
organ system - Answer several organs that cooperate in a specific function
organ - Answer a structure composed of tissues and provudes a specific funtion for the
organisms
tissues - Answer a group of similar cells that perform a specific function
cells - Answer fundamental unit of life
organelle - Answer membrane bound structure that performs a specific function in a cell
molecule - Answer cluster of small chemical units called atoms held together by chemical
bonds
different levels in the hierarchy interact - Answer eg. molecules impacting organisms
is the hierarchy related to scale (size)? - Answer not necessarily, consider the microbiome in
you
whats the microbiome? - Answer bacteria and other organisms live in communiteis and
ecosystems within us and support important functions (eg. digestion, immune system)
Emergent properties at each level - Answer -things are more than the sum of their parts
-emergent properties appear at each level or organization
-the whole is greater than the sum of its parts
system biology ( A system) - Answer combination of components that function together
, System biology (system for research) - Answer at large scale, construct models for the
dynamic behaviour of whole systems based on interaction among parts
cells are the lowest level at the properties of..... - Answer life emerge
prokaryotic cells - Answer -more ancient
-small, simpler
-evolved 3.5-3.8 billion years
ex. bacteria
eukaryotic cells - Answer -evolved 2.1 billion years ago
-has membrane-bound organelles
ex. your cells
cells show how form fits function - Answer ex. nerve cells are long and thin for transmitting
electrical impulses throughout our body
ecosystem diverstiy - Answer -in land ecosystems, plants are producers that provide the
basis of food for the ecosystems
-in aquatic ecosystems, bacteria or algae (photoplankton) are producers that provide the basis
of food for the ecosystem
the common language of life is: - Answer DNA
all cell DNA have... - Answer deoxyribonuclecic acid
unity of life is..... - Answer the common genetic code
diversity of life - Answer differences in DNA
molecular structure of DNA - Answer a dna molecule is made of two long chains arranged in
a double helix
what are the 3 domains of life? - Answer 1. domain bacteria
2. domain archaea compose the prokaryotes
3. eukarya