WorksheetsBiodiversity
Total questions: 50
Worksheet time: 50mins
What does a food web represent?
All connections of energy flow throughout all organisms in a habitat.
The specific ways that mutualism is carried out.
A single pathway or energy flow between organisms.
How carnivores get their food.
What is the branch of science that deals with the study of living things and their relationship with the environment?
Anthropology
Ecology
Ecosystems
All living things or organisms in an ecosystem are
None
biotic factors
abiotic factors
What type of organism makes its own food?
Autotroph
Heterotroph
What is asparagus?
autotroph
heterotroph
What is a lion?
autotroph
heterotroph
Physical characteristics that help an organism survive are called:
Habitats
Extinction.
Adaptations.
Learned behaviors.
Living things are based on a universal genetic
code. What molecule is responsible for that code?
RNA
Lipid
Protein
DNA
Maintaining a stable internal
environment is called
homeostasis
equilibrium
balance
evenness
Identify the characteristic: green plants produce their own food through the process of photosynthesis.
All living things use energy
All living things contain cells
All living things maintain homeostasis
All living things grow and develop
Identify the characteristic: A camel has eyelashes that work to keep the dust and sand out of its eyes.
All living things adapt/respond to their environment
All living things grow
All living things have cells
All living things use energy
Organisms, like bacteria, insects and worms, that break down waste are called ___
carnivore
herbivores
decomposers
Primary succession occurs in an area that has:
Has Soil
Has No Soil
Has Some Soil
none of these
___ are the first organisms to colonize an area and begin the process of ecological succession.
foundational organisms
introductory organisms
primary organisms
pioneer species
Which of the following is the correct order of ecological succession?
grass - shrubs - lichens - trees
lichens - shrubs - grasses - trees
lichens - grasses - shrubs - trees
grasses - lichens - shrubs - trees
What is an increase of biodiversity over time, after a natural or man made disturbance?
ecological recession
climax recession
ecological succession
climax succession
What is the term that describes a steady and stable community?
peak community
turf community
climax community
disturbed community
Which is faster: Primary or Secondary Succession?
Primary Succession
Secondary Succession
Both Take The Same Amount of Time
Nitrogen fixation...
animals eat the plants and other animals that contain nitrogen and release it through their waste
Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen
Once in the ground, bacteria in the soil also nitrify the nitrogen
plants absorb nitrogen through their roots and return it back to the atmosphere
Abiotic is non-living
What is an invasive species?
an organism that IS native to an area and causes harm to the environment/humans
an organism that is NOT native to an area and causes harm to the environment/humans
an organism that is NOT native to an area and helps the environment/humans
an organism that IS native to an area and helps the environment/humans
The primary cause of invasive species introduction is
too much food
human actions
weather events
asteroids
What is a keystone species?
A species that helps to hold an ecosystem together
A species that lives in or around rocks
Keys and stones have nothing to do with ecology
A keystone isn't a living thing, it's just a stone
