Random Review
What is the most important element in chemistry ?
carbon
Define Reservoir
a place where anything is collected or accumulated in great amount
Decomposers are essential to recycling matter in the Nitrogen Cycle. Which trophic level would a decomposer get their energy from?
A) Producers
B) Primary consumers
C) Secondary consumers
D) All of these levels
D
What is the current world population ?
7.8 Billion , 7.9 Billion, 8.0 Billion, 8.1 Billion, 8.2 Billion
8.2 Billion
Name 3 decomposers.
Worms
Fungi
Mold
Bacteria
Yeast
Certain Insect
Give two examples EACH of a non-renewable and renewable resource.
non-renewable: Gas, Oil, Nuclear,
renewable resource: Soil, Fresh water, air,
In a reaction, what does reactants and products mean ?
Starting Material of a reaction
End result of a reaction
What are the three main ways carbon travels in our ecosystem ?
1. Photosynthesis
2. Cellular Respiration
3. Decomposition
What is the infant mortality rate if 43% of infants survive ?
Give your answer as a percentage.
57 %
What makes CO2 a greenhouse gas ?
Absorbs and traps heat from the atmosphere. Hence the earth gets warmer.
Eating a bag of takis is an example of _______ hazards
A) Biological
B) Physical
C) Societal
D) Chemical
Chemical
Factors that threaten or are harmful to human health are called__________.
Hazards
Where does carbon come from ?
Originates from the natural and human resources. A majority is found within the earth's crust, atmosphere, and oceans.
Sensitivity: An organism's ability to respond to external stimulus
Genetics: a genome that influences a person's resistance to pathogens or hazards.
Which of the following would be most affected over the long term by the greenhouse effect?
(Select all that apply)
A) The rotation of the Earth on its axis
B) Human Population
C) The carrying capacity of the Earth’s ecosystems
D) The distance in light years from the Earth to the sun
E) The natural resources of the Earth like water and trees
C. & E
Name one method discussed in class to combat deforestation
Afforestation
Cellular Respiration is __________
the process by which cells break down glucose ( & other molecules) to release energy in the form of ATP.
(Aka. Metabolism)
Explain the way CO2 travels from the atmosphere into our vegetation. Be specific
Plants take carbon in as part of photosynthesis
Once inside a plant carbon is split from CO2 and used in the Calvin Cycle to make glucose.
What are the two main contributors discussed in class that greatly affected human population growth ?
Agriculture & Industrial revolution
What type of hazard are green house gases ?
Environmental / Physical
In human cellular respiration is CO2 a reactant or a product ?
Product
What are fossil fuels ?
(Specify the two atoms in fossil fuels in your response)
Hydrocarbons from the organic matter of dead plants and microorganisms (or fossils) , decompose and form non-renewable fuel.
Which part of photosynthesis is CO2 a reactant ?
Calvin cycle or light-independent reaction
Different forms of agriculture include: Foraging, Pastoralism, Traditional and modern farming. Which of the methods listed has the lowest carrying capacity ?
Pastoralism
Name the two types of Man-Made hazards.
(We discussed four types of hazards in class )
Societal & Chemical (Synthetic)