Biology Semester 2 Final

32 Questions | By UOSScience | Updated: Mar 22, 2022 | Attempts: 130

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1.

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?
- 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
- 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?
- 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
- 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
- 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