Question 1

The number and variety of ecosystems in a particular area, each of which is a storehouse of genetic and species diversity, is called

Accepted Answer

A)  ecological diversity.
B)  species diversity.
C)  functional diversity.
D)  biodiversity.
E)  genetic diversity.F) All of the above
G) A) and E)

Question 2

Individuals, not populations, evolve to become genetically different.

Accepted Answer

A) True 
 B)False

Question 3

Which type of human activity negatively affects deserts, grasslands, forests, and mountains?

Accepted Answer

A)  off-road vehicles
B)  agriculture
C)  conversion to cropland
D)  depletion of groundwater
E)  timber extractionF) A) and C)
G) B) and E)

Question 4

Climate and vegetation vary with

Accepted Answer

A)  latitude only.
B)  longitude only.
C)  altitude only.
D)  latitude and altitude.
E)  altitude and longitude.F) None of the above
G) A) and B)

Question 5

Selective breeding is a method of artificial selection.

Accepted Answer

A) True 
 B)False

Question 6

The coastal zone contains 90% of all marine species but makes up only what percent of the world's ocean?

Accepted Answer

A)  0.5
B)  2
C)  10
D)  30
E)  45F) D) and E)
G) B) and C)

Question 7

Biomes are not uniformly distributed because of discontinuities in the distribution of resources and human activities.

Accepted Answer

A) True 
 B)False

Question 8

What are the two primary reasons the earth is 'just right' for life to thrive?

Accepted Answer

A)  The earth's distance from the sun and the volume of its oceans
B)  The surface area of the earth's continents and its distance from the sun
C)  The size of the earth and the surface area of its continents
D)  The size of the earth and its distance from the sun
E)  The size of the earth and the volume of its oceansF) A) and D)
G) A) and C)

Question 9

Photosynthesis in the open sea occurs in the

Accepted Answer

A)  euphotic zone.
B)  abyssal zone.
C)  bathyal zone.
D)  coastal zone.
E)  profundal zone.F) A) and B)
G) A) and C)

Question 10

Labeling 
 
-On the accompanying temperate-zone lake, choose the zone of open water where photosynthesis can occur.

Accepted Answer

The answer of Labeling 
 
-On the accompanying temperate-zone lake,...

Question 11

Why do rivers and lakes support different life zones?

Accepted Answer

The movement of water in river...

Question 12

The twilight (dimly lit)  zone of the sea is the

Accepted Answer

A)  euphotic zone.
B)  abyssal zone.
C)  bathyal zone.
D)  coastal zone.
E)  benthic zone.F) All of the above
G) A) and D)

Question 13

Most mutations

Accepted Answer

A)  proceed though a set of programmed sequences.
B)  enable individuals to evolve by becoming genetically different.
C)  occur from exposure to external agents such as radioactivity.
D)  cannot be passed along through reproduction cells.
E)  result from random changes that occur in coded genetic instructions.F) D) and E)
G) A) and B)

Question 14

In a region with seasonal drought, occasional fires, and grazing by large herbivores, you would most likely find a

Accepted Answer

A)  forest.
B)  grassland.
C)  desert.
D)  volcanoes.
E)  sand dunes.F) A) and D)
G) B) and C)

Question 15

A change a population's genetic makeup through successive generations is known as

Accepted Answer

A)  emigration.
B)  mutation.
C)  natural selection.
D)  biological evolution.
E)  genetic drift.F) A) and C)
G) C) and D)

Question 16

____________________ in any cell can result in new genetic traits that can produce a better chance of survival.

Accepted Answer

The answer of ____________________ in any cell can result in...

Question 17

Only mutations that occur in the genes of reproductive cells are passed on to offspring.

Accepted Answer

A) True 
 B)False

Question 18

A desert is an area where

Accepted Answer

A)  evaporation is slow.
B)  average annual precipitation is low.
C)  most vegetation consists of grass.
D)  it never rains.
E)  only cactus plants grow.F) C) and D)
G) A) and B)

Question 19

Briefly explain why desert ecosystems are particularly fragile.

Accepted Answer

Deserts are characterized by lack of wat...

Question 20

The variety of the earth's species and ecosystems is called ____________________.

Accepted Answer

The answer of The variety of the earth's species and...

Exam 3: Biodiversity and Evolution

In a region with seasonal drought, occasional fires, and grazing by large herbivores, you would most likely find a

Correct AnswerverifiedShow Answer

The number and variety of ecosystems in a particular area, each of which is a storehouse of genetic and species diversity, is called

Correct AnswerverifiedShow Answer

The coastal zone contains 90% of all marine species but makes up only what percent of the world's ocean?

Correct AnswerverifiedShow Answer

The twilight (dimly lit) zone of the sea is the

Correct AnswerverifiedShow Answer

Briefly explain why desert ecosystems are particularly fragile.

Correct AnswerverifiedDeserts are characterized by lack of wat...View AnswerShow Answer

Labeling -On the accompanying temperate-zone lake, choose the zone of open water where photosynthesis can occur.

Correct AnswerverifiedShow Answer

Individuals, not populations, evolve to become genetically different.

Correct AnswerverifiedShow Answer

Biomes are not uniformly distributed because of discontinuities in the distribution of resources and human activities.

Correct AnswerverifiedShow Answer

Climate and vegetation vary with

Correct AnswerverifiedShow Answer

What are the two primary reasons the earth is 'just right' for life to thrive?

Correct AnswerverifiedShow Answer

Which type of human activity negatively affects deserts, grasslands, forests, and mountains?

Correct AnswerverifiedShow Answer

Only mutations that occur in the genes of reproductive cells are passed on to offspring.

Correct AnswerverifiedShow Answer

Selective breeding is a method of artificial selection.

Correct AnswerverifiedShow Answer

A change a population's genetic makeup through successive generations is known as

Correct AnswerverifiedShow Answer

Why do rivers and lakes support different life zones?

Correct AnswerverifiedThe movement of water in river...View AnswerShow Answer

The variety of the earth's species and ecosystems is called ____________________.

Correct AnswerverifiedShow Answer

Photosynthesis in the open sea occurs in the

Correct AnswerverifiedShow Answer

Most mutations

Correct AnswerverifiedShow Answer

A desert is an area where

Correct AnswerverifiedShow Answer

____________________ in any cell can result in new genetic traits that can produce a better chance of survival.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Deserts are characterized by lack of wat...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The movement of water in river...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified