Food chains/webs
What is the principle source of energy input into biological systems?
The sun
Which type of pyramid is always pyramid shaped?
Pyramid of biomass
Define what biodiversity is
the number of different species living in an area
Respiration
Which country has the largest population?
India
What type of organism is the first level of food chains?
Producer
Give an example when a pyramid of numbers would be smaller at the bottom
When the producer is large such as a tree
What is the definition of an ecosystem?
unit containing the community of organisms and their environment, interacting together
What are the reactants for respiration
Glucose and oxygen
Which country invented French Fries? HINT: Its not France
Belgium
How is most energy lost at each trophic level?
As heat
Give an example when a pyramid of numbers would be bigger further up
When the secondary or tertiary consumer is small on a larger animal e.g. parasite
Give 3 reasons/ways in which humans destroy habitats
1. for housing/crop plantation/farming livestock
2. Extract natural resources/mining
3. freshwater/marine pollution (e.g. eutrophication or plastic pollution)
What are the reactants for photosynthesis
Carbon dioxide and water
Which muscle in the human body is the strongest?
Jaw
Which trophic levels would contain carnivores? Give 2.
Secondary, tertiary or quaternary
What is the phase before the exponential phase in a population curve?
Lag phase
Name an undesirable effect of deforestation
reduces biodiversity
causes extinction
loss of soil/soil erosion
flooding
Increase carbon dioxide in the atmosphere
Other than respiration and decomposition, which other process releases carbon dioxide into the atmosphere?
Combustion
What is the name of the monster in Stranger Things?
The Demogorgon
Approximately what percentage of energy is transferred at each trophic level?
10%
Which phase of a population curve has the equation birth = death
stationary phase
Give 3 ways species can be conserved
1. monitoring/protecting species or habitats
2. education
3. captive breeding/breeding programmes
4. Seed banks
Give the complete balanced equation for photosynthesis
6CO2 + 6H2O -> C6H12O6 + 6O2
Which athlete has the most Olympic medals?
Michael Phelps