Question 1

In a dicot stem, xylem is part of a ring of cells called the

Accepted Answer

A)  apical meristem. 
B)  vascular cambium. 
C)  cork cambium. 
D)  epidermal tissue. 
A)  apical meristem. 
B)  vascular cambium. 
C)  cork cambium. 
D)  epidermal tissue.

Question 2

What is the difference between organic and inorganic fertilizers?

Accepted Answer

A)  Organic fertilizers are carbon-based and are made from decomposed plant and animal wastes; inorganic fertilizers lack carbon and are produced by an industrial chemical process. 
B)  Inorganic fertilizers are carbon-based and are made from decomposed plant and animal wastes; organic fertilizers lack carbon and are produced by an industrial chemical process. 
C)  Organic fertilizers are carbon-based and are produced by an industrial chemical process; inorganic fertilizers lack carbon and are made from decomposed plant and animal wastes. 
D)  Inorganic fertilizers are carbon-based and are produced by an industrial chemical process; organic fertilizers lack carbon and are made from decomposed plant and animal wastes. 
A)  Organic fertilizers are carbon-based and are made from decomposed plant and animal wastes; inorganic fertilizers lack carbon and are produced by an industrial chemical process. 
B)  Inorganic fertilizers are carbon-based and are made from decomposed plant and animal wastes; organic fertilizers lack carbon and are produced by an industrial chemical process. 
C)  Organic fertilizers are carbon-based and are produced by an industrial chemical process; inorganic fertilizers lack carbon and are made from decomposed plant and animal wastes. 
D)  Inorganic fertilizers are carbon-based and are produced by an industrial chemical process; organic fertilizers lack carbon and are made from decomposed plant and animal wastes.

Question 3

Which of the following has seeds that are the richest in protein?

Accepted Answer

A)  wheat 
B)  rice 
C)  barley 
D)  soybean 
A)  wheat 
B)  rice 
C)  barley 
D)  soybean

Question 4

Modern farmers use irrigation to deliver which of the following to their plants?

Accepted Answer

A)  light 
B)  water 
C)  nutrients 
D)  carbon dioxide 
A)  light 
B)  water 
C)  nutrients 
D)  carbon dioxide

Question 5

To which of the following groups of plants are insect pollinators most important?

Accepted Answer

A)  gymnosperms 
B)  angiosperms 
C)  mosses 
D)  ferns 
A)  gymnosperms 
B)  angiosperms 
C)  mosses 
D)  ferns

Question 6

Which of these is evidence that has allowed scientists to deduce the climate conditions that existed thousands of years ago?

Accepted Answer

A)  plant remains trapped in sediments 
B)  fossilized fruits and seeds 
C)  DNA in crop plants 
D)  deep layers in soils 
A)  plant remains trapped in sediments 
B)  fossilized fruits and seeds 
C)  DNA in crop plants 
D)  deep layers in soils

Question 7

A tuber is

Accepted Answer

A)  an enlargement of an underground stem. 
B)  a root that's modified for nutrient storage. 
C)  the reproductive organ of a gymnosperm. 
D)  a modified leaf that serves as a nutrient storage structure. 
A)  an enlargement of an underground stem. 
B)  a root that's modified for nutrient storage. 
C)  the reproductive organ of a gymnosperm. 
D)  a modified leaf that serves as a nutrient storage structure.

Question 8

The concentration of persistent toxic chemicals within higher levels of a food chain or food web is called ________.

Accepted Answer

The answer of The concentration of persistent toxic chemicals within...

Question 9

In flowering plants, eggs are to ovules as

Accepted Answer

A)  sperm are to pollen. 
B)  sperm are to anthers. 
C)  pollen is to carpels. 
D)  pollen is to sepals. 
A)  sperm are to pollen. 
B)  sperm are to anthers. 
C)  pollen is to carpels. 
D)  pollen is to sepals.

Question 10

Plants grow taller from their growing tips, or ________. This form of growth is also known as ________ growth.

Accepted Answer

A)  apical meristem; primary 
B)  apical meristem; secondary 
C)  axillary buds; primary 
D)  axillary buds; secondary 
A)  apical meristem; primary 
B)  apical meristem; secondary 
C)  axillary buds; primary 
D)  axillary buds; secondary

Question 11

What evidence is there that modern agriculture is unsustainable?

Accepted Answer

A)  Fresh water is used for irrigating crops. 
B)  Large amounts of nonrenewable fossil fuels are required. 
C)  Fertilizers and pesticides are inexpensive and easy to obtain. 
D)  More food is produced than can be used. 
A)  Fresh water is used for irrigating crops. 
B)  Large amounts of nonrenewable fossil fuels are required. 
C)  Fertilizers and pesticides are inexpensive and easy to obtain. 
D)  More food is produced than can be used.

Question 12

What is the staple crop of Asia?

Accepted Answer

A)  wheat 
B)  rice 
C)  corn 
D)  yams 
A)  wheat 
B)  rice 
C)  corn 
D)  yams

Question 13

Almost all modern crop plants are

Accepted Answer

A)  gymnosperms. 
B)  annual plants. 
C)  dicots. 
D)  legumes. 
A)  gymnosperms. 
B)  annual plants. 
C)  dicots. 
D)  legumes.

Question 14

The human race relied upon hunting and gathering, with no agriculture, for its first

Accepted Answer

A)  1,500,000 years. 
B)  1,000,000 years. 
C)  500,000 years. 
D)  250,000 years. 
A)  1,500,000 years. 
B)  1,000,000 years. 
C)  500,000 years. 
D)  250,000 years.

Question 15

The middle layer of healthy soil, between the top and base layers, is

Accepted Answer

A)  composed entirely of recently eroded rock. 
B)  composed entirely of decomposing animal wastes. 
C)  composed entirely of dead plants, animals, and other organisms. 
D)  a mixture of eroded rock and decaying matter. 
A)  composed entirely of recently eroded rock. 
B)  composed entirely of decomposing animal wastes. 
C)  composed entirely of dead plants, animals, and other organisms. 
D)  a mixture of eroded rock and decaying matter.

Question 16

The ability of a plant to continue to grow throughout its lifetime is called

Accepted Answer

A)  determinate growth. 
B)  indeterminate growth. 
C)  secondary growth. 
D)  vernalization. 
A)  determinate growth. 
B)  indeterminate growth. 
C)  secondary growth. 
D)  vernalization.

Question 17

In the life cycle of plants the spore is a

Accepted Answer

A)  diploid structure. 
B)  nonreproductive structure. 
C)  haploid structure. 
D)  triploid endosperm. 
A)  diploid structure. 
B)  nonreproductive structure. 
C)  haploid structure. 
D)  triploid endosperm.

Question 18

The tiny, absorptive structures on the root cells near the root tip are called

Accepted Answer

A)  taproots. 
B)  rhizomes. 
C)  root hairs. 
D)  root buds. 
A)  taproots. 
B)  rhizomes. 
C)  root hairs. 
D)  root buds.

Question 19

Primary growth can result in a plant that

Accepted Answer

A)  is short and bushy. 
B)  is tall with a wide stem. 
C)  has an extensive root system. 
D)  has cork and wood. 
A)  is short and bushy. 
B)  is tall with a wide stem. 
C)  has an extensive root system. 
D)  has cork and wood.

Question 20

A leaf blade is attached to a stem by a stalk-like structure called a(n)

Accepted Answer

A)  internode. 
B)  stoma. 
C)  petiole. 
D)  node. 
A)  internode. 
B)  stoma. 
C)  petiole. 
D)  node.

Exam 23: Feeding the World: Plant Structure and Growth

In a dicot stem, xylem is part of a ring of cells called the

What is the difference between organic and inorganic fertilizers?

Which of the following has seeds that are the richest in protein?

Modern farmers use irrigation to deliver which of the following to their plants?

To which of the following groups of plants are insect pollinators most important?

Which of these is evidence that has allowed scientists to deduce the climate conditions that existed thousands of years ago?

A tuber is

The concentration of persistent toxic chemicals within higher levels of a food chain or food web is called ________.

In flowering plants, eggs are to ovules as

Plants grow taller from their growing tips, or ________. This form of growth is also known as ________ growth.

What evidence is there that modern agriculture is unsustainable?

What is the staple crop of Asia?

Almost all modern crop plants are

The human race relied upon hunting and gathering, with no agriculture, for its first

The middle layer of healthy soil, between the top and base layers, is

The ability of a plant to continue to grow throughout its lifetime is called

In the life cycle of plants the spore is a

The tiny, absorptive structures on the root cells near the root tip are called

Primary growth can result in a plant that

A leaf blade is attached to a stem by a stalk-like structure called a(n)

Can Science Cure the Common Cold? Introduction to the Scientific Method

Are We Alone in the Universe? Water, Biochemistry, and Cells

Is It Possible to Supplement Your Way to Better Health?

Fat: How Much is Right for You? Enzymes, Metabolism, and Cellular Respiration

Life in the Greenhouse: Photosynthesis and Global Warming

Cancer: DNA Synthesis, Mitosis, and Meiosis

Are You Only as Smart as Your Genes? Mendelian and Quantitative Genetics

DNA Detective: Complex Patterns of Inheritance and DNA Fingerprinting

Genetically Modified Organisms: Gene Expression, Mutation, and Cloning

Where Did We Come From? The Evidence for Evolution

An Evolving Enemy: Natural Selection

Who Am I? Species and Races

Prospecting for Biological Gold: Biodiversity and Classification

Is the Human Population Too Large? Population Ecology

Conserving Biodiversity: Community and Ecosystem Ecology

Where Do You Live? Climate and Biomes

Organ Donation: Tissues Organs and Organ Systems

Clearing the Air: Respiratory Cardiovascular and Excretory Systems

Vaccinations: Protection and Prevention or Peril? Immune System

Sex Differences and Athleticism: Endocrine Skeletal and Muscular Systems

Is There Something in the Water? Reproductive and Developmental Biology

Attention Deficit Disorder: Brain Structure and Function

Growing a Green Thumb: Plant Physiology

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Plants grow taller from their growing tips, or . This form of growth is also known as growth.