Question 1

A dinoflagellate has two flagella.

Accepted Answer

A) True 
 B)False

Question 2

You are analyzing samples under a microscope,and one sample coming from what you suspect is a fungus.You find tiny filaments,which,in your report,you call

Accepted Answer

A) hyphae. 
B) spores. 
C) fruiting bodies. 
D) gills. 
E) chitin. 
A) hyphae. 
B) spores. 
C) fruiting bodies. 
D) gills. 
E) chitin.

Question 3

The three most common shapes of bacteria are

Accepted Answer

A) spirillum,endospore,and peptidoglycan. 
B) bacillus,spirillum,and coccus. 
C) cubical,spiral,and thread-like. 
D) spirillum,nucleiod,and peptidoglycan. 
E) cubical,spherical,and rod-shaped. 
A) spirillum,endospore,and peptidoglycan. 
B) bacillus,spirillum,and coccus. 
C) cubical,spiral,and thread-like. 
D) spirillum,nucleiod,and peptidoglycan. 
E) cubical,spherical,and rod-shaped.

Question 4

What did Stanley Miller's simulation of Earth's early conditions produce?

Accepted Answer

A) living cells 
B) amino acids 
C) plants 
D) DNA molecules 
E) RNA molecules 
A) living cells 
B) amino acids 
C) plants 
D) DNA molecules 
E) RNA molecules

Question 5

Sexual spores are formed by the fusion of two haploid nuclei.They then go through meiosis to form spores.Spores are which of the following?

Accepted Answer

A) haploid 
B) diploid 
C) dikaryotic 
D) tetraploid 
E) uniploid 
A) haploid 
B) diploid 
C) dikaryotic 
D) tetraploid 
E) uniploid

Question 6

Prokaryotes lack which feature?

Accepted Answer

A) a nucleus 
B) RNA 
C) DNA 
D) a cell membrane 
E) a cell wall 
A) a nucleus 
B) RNA 
C) DNA 
D) a cell membrane 
E) a cell wall

Question 7

A lichen is made up of which two types of organisms?

Accepted Answer

A) a fungus and a plant 
B) a plant and a cyanobacterium 
C) a fungus and an alga or cyanobacterium 
D) an alga and a bacterium 
E) an alga and a plant 
A) a fungus and a plant 
B) a plant and a cyanobacterium 
C) a fungus and an alga or cyanobacterium 
D) an alga and a bacterium 
E) an alga and a plant

Question 8

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except

Accepted Answer

A) oxygen. 
B) water. 
C) ammonia. 
D) methane. 
E) hydrogen. 
A) oxygen. 
B) water. 
C) ammonia. 
D) methane. 
E) hydrogen.

Question 9

Which of the following is not a similarity supporting the endosymbiont theory?

Accepted Answer

A) similarity in the DNA of mitochondria and prokaryotes 
B) similarity in the nucleus of prokaryotes and mitochondria 
C) similarity in the RNA of mitochondria and prokaryotes 
D) similarity in the ribosomes of mitochondria and prokaryotes 
E) All answers support the endosymbiont theory. 
A) similarity in the DNA of mitochondria and prokaryotes 
B) similarity in the nucleus of prokaryotes and mitochondria 
C) similarity in the RNA of mitochondria and prokaryotes 
D) similarity in the ribosomes of mitochondria and prokaryotes 
E) All answers support the endosymbiont theory.

Question 10

The domain (domains)that contain prokaryotes is (are)

Accepted Answer

A) ArchaeA. 
B) Bacteria. 
C) both Archaea and Bacteria. 
D) Eukarya. 
E) both Bacteria and Eukarya. 
A) ArchaeA. 
B) Bacteria. 
C) both Archaea and Bacteria. 
D) Eukarya. 
E) both Bacteria and Eukarya.

Question 11

How did multicellular organisms evolve from unicellular organisms?

Accepted Answer

A) Single-celled organisms joined together,or failed to separate after cell division. 
B) Single-celled organisms joined together only. 
C) Single-celled organisms failed to separate after cell division only. 
D) Single-celled organisms joined together,or absorbed other species by endosymbiosis. 
E) One species absorbed another species by endosymbiosis only. 
A) Single-celled organisms joined together,or failed to separate after cell division. 
B) Single-celled organisms joined together only. 
C) Single-celled organisms failed to separate after cell division only. 
D) Single-celled organisms joined together,or absorbed other species by endosymbiosis. 
E) One species absorbed another species by endosymbiosis only.

Question 12

Protein was the first molecule carrying genetic information.

Accepted Answer

A) True 
 B)False

Question 13

Because archaea were first found in environments that lacked oxygen or were very hot,acidic,or salty,they were nicknamed "extremophiles."

Accepted Answer

A) True 
 B)False

Question 14

Where did the first life on Earth evolve?

Accepted Answer

A) in the ocean 
B) Scientists do not know. 
C) on land 
D) somewhere else in the universe 
E) in a freshwater habitat 
A) in the ocean 
B) Scientists do not know. 
C) on land 
D) somewhere else in the universe 
E) in a freshwater habitat

Question 15

Chytridiomycetes produce enzymes that digest cellulose,chitin,and similar molecules.These fungi are contributing to the decline of amphibians worldwide through what mechanism?

Accepted Answer

A) by infecting their lungs 
B) by digesting keratin in the frog's skin 
C) by killing their eggs in the water 
D) by digesting chitin in the cell wall of the frog's cells 
E) by digesting cellulose in the cell wall of the frog's cells 
A) by infecting their lungs 
B) by digesting keratin in the frog's skin 
C) by killing their eggs in the water 
D) by digesting chitin in the cell wall of the frog's cells 
E) by digesting cellulose in the cell wall of the frog's cells

Question 16

Scientists have fossils of the first life on Earth.

Accepted Answer

A) True 
 B)False

Question 17

Which is a difference between how a frog and a fungus obtain energy?

Accepted Answer

A) Frogs ingest their food;chytridiomycetes secrete digestive enzymes. 
B) Chytridiomycetes ingest their food;frogs secrete digestive enzymes. 
C) Frogs are heterotrophs;chytridiomycetes are phototrophs. 
D) Chytridiomycetes are heterotrophs;frogs are phototrophs. 
E) Frogs are autotrophs;chytridiomycetes are phototrophs. 
A) Frogs ingest their food;chytridiomycetes secrete digestive enzymes. 
B) Chytridiomycetes ingest their food;frogs secrete digestive enzymes. 
C) Frogs are heterotrophs;chytridiomycetes are phototrophs. 
D) Chytridiomycetes are heterotrophs;frogs are phototrophs. 
E) Frogs are autotrophs;chytridiomycetes are phototrophs.

Question 18

Fungi and plants are similar because they both

Accepted Answer

A) carry out photosynthesis. 
B) have cellulose as the main component of their cell walls. 
C) have glycogen as the main storage carbohydrate. 
D) All answers are correct. 
E) have cell walls. 
A) carry out photosynthesis. 
B) have cellulose as the main component of their cell walls. 
C) have glycogen as the main storage carbohydrate. 
D) All answers are correct. 
E) have cell walls.

Question 19

Mycorhizal fungi that do not reproduce sexually and have large asexual spores are

Accepted Answer

A) glomeromycotA. 
B) basidiomycota. 
C) ascomycota. 
D) zygomycota. 
E) chytridiomycota. 
A) glomeromycotA. 
B) basidiomycota. 
C) ascomycota. 
D) zygomycota. 
E) chytridiomycota.

Question 20

If you were taken to the beach and asked to stand near a sample of the largest kind of algae,you would search for a piece of

Accepted Answer

A) kelp. 
B) diatoms. 
C) red algae. 
D) golden algae. 
E) green algaE. 
A) kelp. 
B) diatoms. 
C) red algae. 
D) golden algae. 
E) green algaE.

Exam 15: Evolution and Diversity of Microbial Life

A dinoflagellate has two flagella.

You are analyzing samples under a microscope,and one sample coming from what you suspect is a fungus.You find tiny filaments,which,in your report,you call

The three most common shapes of bacteria are

What did Stanley Miller's simulation of Earth's early conditions produce?

Sexual spores are formed by the fusion of two haploid nuclei.They then go through meiosis to form spores.Spores are which of the following?

Prokaryotes lack which feature?

A lichen is made up of which two types of organisms?

The Russian chemist Oparin suggested that for organic molecules to form on Earth,the atmosphere was probably rich in all of these except

Which of the following is not a similarity supporting the endosymbiont theory?

The domain (domains)that contain prokaryotes is (are)

How did multicellular organisms evolve from unicellular organisms?

Protein was the first molecule carrying genetic information.

Because archaea were first found in environments that lacked oxygen or were very hot,acidic,or salty,they were nicknamed "extremophiles."

Where did the first life on Earth evolve?

Chytridiomycetes produce enzymes that digest cellulose,chitin,and similar molecules.These fungi are contributing to the decline of amphibians worldwide through what mechanism?

Scientists have fossils of the first life on Earth.

Which is a difference between how a frog and a fungus obtain energy?

Fungi and plants are similar because they both

Mycorhizal fungi that do not reproduce sexually and have large asexual spores are

If you were taken to the beach and asked to stand near a sample of the largest kind of algae,you would search for a piece of

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

Dna Structure and Gene Function

DNA Replication, binary Fission, and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

Dna Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Populations

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratorysystems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

Filters