Nature
Where is plankton found?
(a) the surface of the ocean
(b) tropical rain forests
(c) all forest lands
(d) the bottom of the ocean
(a) Plankton is found on the surface of the ocean.
Where is plankton found?
(a) the surface of the ocean
(b) tropical rain forests
(c) all forest lands
(d) the bottom of the ocean
(a) Plankton is found on the surface of the ocean.
Which of the following statements is true?
(a) Scavengers and decomposers are basically the same.
(b) Only green plants can be producers.
(c) The United States prohibits the importation of endangered species.
(d) All of the above.
(c) It is true that the United States prohibits the importation of endangered species.
Cars are the leading cause of:
(a) air pollution
(b) water pollution
(c) deforestation
(d) fossil fuel consumption
(a) Cars are the leading cause of air pollution.
An animal which eats only animals is called a(n):
(a) carnivore
(b) herbivore
(c) omnivore
(d) scavenger
(a) An animal which eats only animals is called a carnivore.
Three alternate energy sources are:
(a) sun, wind, rain
(b) atomic energy, coal, wind
(c) coal, oil, gas
(d) sun, wind, atomic energy
(d) Three alternate energy sources are sun, wind, atomic energy.
In a balanced ecosystem, the largest number of organisms are the:
(a) consumers
(b) producers
(c) carnivores
(d) omnivores
(b) In a balanced ecosystem, the largest number of organisms are the producers.
DDT was hazardous because it:
(a) decomposed too quickly
(b) killed everything it was sprayed on
(c) increased the amount of bacteria in soil
(d) was carried all over the world by wind
(b) DDT was hazardous because it killed everything it was sprayed on.
A group of organisms which lives together in an area is called a(n):
(a) species
(b) habitat
(c) community
(d) environment
(c) A group of organisms which lives together in an area is called a community.
Select all that apply.
Which of the following can be recycled?
(a) paper
(b) coal
(c) glass
(d) metal
(e) plastic
The following items can be recycled: (a) paper, (c) glass, (d) metal, and (e) plastic.
In the past, human populations were controlled by:
(a) wolves and coyotes
(b) disease and famine
(c) disease and pollution
(d) producers and consumers
(b) In the past, human populations were controlled by disease and famine.
How did insects become resistant to DDT
(a) Some were already resistant and were the survivors that could reproduce.
(b) All insects already had genetic resistance to DDT and it took effect once exposed.
(c) The gametes of all insects exposed to DDT were mutated for the offspring to be resistant.
(d) All surviving insects eventually developed resistance after multiple exposures to DDT.
(a) How did insects become resistant to DDT - Some were already resistant and were the survivors that could reproduce.
Ground water is becoming:
(a) depleted and warmer
(b) polluted and radioactive
(c) polluted and depleted
(d) increased and salty
(c) Ground water is becoming polluted and depleted.
Which of the following is an example of a human disruption to the balance of nature?
(a) terracing
(b) recycling
(c) conservation
(d) poaching
(d) Poaching is an example of a human disruption to the balance of nature.
Which of the following statements is true?
(a) Nuclear power plants can decrease fish populations.
(b) Solar power is expensive and not widely used.
(c) Coal and oil are considered nonrenewable resources.
(d) All of the above.
(d) All of the following statements are true:
Nuclear power plants can decrease fish populations.
Solar power is expensive and not widely used.
Coal and oil are considered nonrenewable resources.
In a prairie ecosystem, seeds are eaten by mice, which are eaten by foxes. If the fox population suddenly increased:
(a) the population of mice would increase
(b) the number of seeds would decrease
(c) the population of mice would decrease
(d) none of the above
(c) In a prairie ecosystem, seeds are eaten by mice, which are eaten by foxes. If the fox population suddenly increased the population of mice would decrease.
What is the difference between transformation and transfection gene therapies?
The process of transformation occurs in a laboratory. Cells are grown in the lab and then introduced to DNA that carries the gene of interest.
Transfection uses a virus to introduce the gene of interest to the host cells.
What is the difference between therapeutic and reproductive cloning?
In therapeutic cloning, embryos are cloned for their stem cells. These stem cells are then used to grow tissue and organs.
Reproductive cloning involves the cloning of an embryo for the purpose of producing a genetically identical organism.
Eugenics is the set of beliefs and practices that aim at improving the human population thru genetic engineering.
Describe both a positive and negative effect that could result from this type of thinking.
Positive effect of eugenics is that more cures will be found to fight against disease.
Negative effect of eugenics is that some people will be denied help.
What concerns do you have with the consumption of genetically engineered plant and animal food products?
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