Biology Semester 2 Final
- 1.
![Refer to the illustration. The photosynthetic algae are - ProProfs]( "Refer to the illustration. The photosynthetic algae are")
Refer to the illustration. The photosynthetic algae are- A.
Parasite
- B.
Producers
- C.
Consumers
- D.
Decomposers
- 2.The finches that Darwin studied differed in the shape of their beaks. According to Darwin, the finches probably
- A.
Option 1
- B.
Were descended from similar birds in Africa.
- C.
Would become more similar over time.
- D.
Had become adapted to eating different diets.
- 3.As a population reaches its carrying capacity, resources become more scarce. Which of the following would increase within the population?
- A.
Available shelter
- B.
Nesting sites
- C.
Competition
- D.
Birthrate
- 4.Which resource is considered renewable?
- A.
Coal
- B.
Wind
- C.
Natural gas
- D.
Oil
- 5.
![Refer to the illustration. The American Revolution began in 1776. According to the graph, what was the approximate world population at that time? - ProProfs]( "Refer to the illustration. The American Revolution began in 1776. According to the graph, what was the approximate world population at that time?")
Refer to the illustration. The American Revolution began in 1776. According to the graph, what was the approximate world population at that time?- A.
1 million
- B.
2 million
- C.
500 thousand
- D.
I billion
- 6.
![Refer to the illustration. Because the two species of barnacles attempt to use the same resources, they are - ProProfs]( "Refer to the illustration. Because the two species of barnacles attempt to use the same resources, they are")
Refer to the illustration. Because the two species of barnacles attempt to use the same resources, they are- A.
Mutualistic.
- B.
Competitors.
- C.
Parasites.
- D.
Parasites.
- 7.Which of these activities causes the greatest loss of biodiversity?
- A.
Habitat loss
- B.
Air pollution
- C.
Water pollution
- D.
Soil erosion
- 8.
![Refer to the illustration. Which time period shows exponential growth of the population? - ProProfs]( "Refer to the illustration. Which time period shows exponential growth of the population?")
Refer to the illustration. Which time period shows exponential growth of the population?- A.
Period D
- B.
Period A
- C.
Period C
- D.
Period B
- 9.The water cycle continuously moves water between the atmosphere, land, and
- A.
Trees
- B.
Oceans
- C.
Humans
- D.
Ground water
- 10.The major idea that Darwin presented in his book The Origin of Species was that
- A.
Elephants and bacteria changed constantly.
- B.
Animals changed, but plants remained the same.
- C.
Species changed over time by natural selection.
- D.
Species changed over time and never competed with each other
- 11.Renewable sources of energy
- A.
Must be created in laboratories.
- B.
Can replenish themselves naturally.
- C.
Were never utilized until the 20th century.
- D.
Are manufactured from fossil fuels.
- 12.
![Refer to the illustration. Level A is composed of - ProProfs]( "Refer to the illustration. Level A is composed of")
Refer to the illustration. Level A is composed of- A.
Ominvores
- B.
Producers
- C.
Herbivores
- D.
Carnivores
- 13.Natural selection is the process by which ?
- A.
Organisms with traits well-suited to their environment reproduce at a greater rate than less well-adapted organisms in the same environment.
- B.
Change occurs in the genetic characteristics of individuals that live together in an environment from one generation to another.
- C.
Baseball players pass on the trait for strong arm muscles to children.
- D.
Use and disuse of a characteristic leads to evolutionary change.
- 14.What happens in a food chain if one of the lower consumers is eliminated or reduced in numbers?
- A.
There is little effect
- B.
The whole food chain dies out
- C.
Those higher in the food chain must find alternate sources of food; those lower in the food chain must be controlled by other consumers
- D.
Those higher in the food chain benefit; those lower in the food chain suffer
- 15.High biodiversity often helps make an ecosystem more
- A.
Susceptible to disease.
- B.
Resilient.
- C.
Competitive.
- D.
Challenging to survival.
- 16.
![Refer to the illustration. At each trophic level, the energy stored in the organisms in that level is about - ProProfs]( "Refer to the illustration. At each trophic level, the energy stored in the organisms in that level is about")
Refer to the illustration. At each trophic level, the energy stored in the organisms in that level is about- A.
Ten percent of the energy in the level above it.
- B.
50 percent of the energy in the level below it.
- C.
100 percent of the energy in the level below it.
- D.
Ten percent of the energy in the level below it.
- 17.All living things are made of
- A.
Carbon
- B.
Boron
- C.
Mercury
- D.
Silicon
- 18.Nitrogen is a component of
- A.
Fats
- B.
Water
- C.
Carbohydrates
- D.
Proteins
- 19.Which of the following would not be included in a description of an organism's niche?
- A.
The humidity and temperature it prefers
- B.
Its tropic level
- C.
Its number of chromosomes
- D.
When it reproduces
- 20.Linnaeus's two-word system for naming organisms is called
- A.
Binomial nomenclature.
- B.
Taxonomic evolution.
- C.
Genus species.
- D.
Greek polynomials.
- 21.As the density of a population increases, the effects of starvation and disease also often increase. These are which kind of factors?
- A.
Abiotic
- B.
Symbiotic
- C.
Density-dependent
- D.
Density-independent
- 22.The disappearance of a species from the Earth is referred to as
- A.
Extinction
- B.
Deforestation
- C.
Biodiversity
- D.
Recycling
- 23.Which of the following natural cycles involves photosynthesis and cellular respiration?
- A.
Water cycle
- B.
Phosphorus cycle
- C.
Carbon cycle
- D.
Nitrogen cycle
- 24.A producer is the ecological role that
- A.
Is at the top of the energy pyramid.
- B.
Eats other organisms.
- C.
Converts the energy of sunlight into high-energy organic compounds.
- D.
Breaks down dead organisms into recyclable simple chemicals.
- 25.Two species occupying the same niche would be __________ with each other.
- A.
Competition
- B.
At peace
- C.
Coevolving
- D.
In harmony
.PNG "Refer to the illustration. Which time period shows exponential growth of the population?")
.PNG "Refer to the illustration. Level A is composed of")
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