Question 1

Dissolved phosphorus in aquatic ecosystems may return to the land via:

Accepted Answer

A)  erosion. 
B)  phosphate mining. 
C)  birds eating fish and mollusks. 
D)  zooplankton. 
E)  decomposition. 
A)  erosion. 
B)  phosphate mining. 
C)  birds eating fish and mollusks. 
D)  zooplankton. 
E)  decomposition.

Question 2

The buildup of a toxin in an organism's body is called biological magnification.
____________________

Accepted Answer

A) True 
 B)False

Question 3

In the carbon cycle, one of the ways in which carbon is returned to the atmosphere is by respiration.
____________________

Accepted Answer

A) True 
 B)False

Question 4

A food web is a more realistic depiction than a food chain because:

Accepted Answer

A)  organisms rarely eat just one kind of food. 
B)  energy flow is linear. 
C)  energy flow is cyclic. 
D)  a more complex model is always better than a simple one. 
E)  matter cycles in ecosystems. 
A)  organisms rarely eat just one kind of food. 
B)  energy flow is linear. 
C)  energy flow is cyclic. 
D)  a more complex model is always better than a simple one. 
E)  matter cycles in ecosystems.

Question 5

Clearly differentiate between the following terms: gross primary productivity and net primary productivity.

Accepted Answer

Gross primary productivity (GPP) is the

Question 6

Fixation of carbon is accomplished by:

Accepted Answer

A)  photosynthetic organisms. 
B)  primary consumers. 
C)  decomposers. 
D)  bacterial decomposers. 
E)  burning of organic matter. 
A)  photosynthetic organisms. 
B)  primary consumers. 
C)  decomposers. 
D)  bacterial decomposers. 
E)  burning of organic matter.

Question 7

Diagram the hydrological cycle.Include the terms evaporation, transpiration, percolation, groundwater, runoff, condensation, and precipitation.

Accepted Answer

Concepts to Consider: Starting with a cl

Question 8

Plant roots absorb nitrate or ammonia and incorporate these compounds into plant proteins via the process of:

Accepted Answer

A)  ammonification. 
B)  denitrification. 
C)  assimilation. 
D)  nitrogen fixation. 
E)  nitrification. 
A)  ammonification. 
B)  denitrification. 
C)  assimilation. 
D)  nitrogen fixation. 
E)  nitrification.

Exam 55: Ecosystems and the Biosphere

Dissolved phosphorus in aquatic ecosystems may return to the land via:

The buildup of a toxin in an organism's body is called biological magnification. ____________________

In the carbon cycle, one of the ways in which carbon is returned to the atmosphere is by respiration. ____________________

A food web is a more realistic depiction than a food chain because:

Clearly differentiate between the following terms: gross primary productivity and net primary productivity.

Fixation of carbon is accomplished by:

Diagram the hydrological cycle.Include the terms evaporation, transpiration, percolation, groundwater, runoff, condensation, and precipitation.

Plant roots absorb nitrate or ammonia and incorporate these compounds into plant proteins via the process of:

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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