Question 1

Match between columns
                        Premises: The single supercontinent Pangea is present
The dinosaurs became extinct
The Cambrian Explosion has left fossils of many soft-bodied animals
First cells to contain chloroplasts and mitochondria appeared.
Atmosphere is believed to be like ours today

Accepted Answer

The Answer of 1.9 billion years ago and 245 million is...

Question 2

How do we know that the atmosphere of the earth experienced an increase in O₂ and became oxidizing between 2.5 and 2 billion years ago?

Accepted Answer

The answer of How do we know that the atmosphere...

Question 3

Match between columns
                        Premises: Can generate organic molecules using inorganic molecules like hydrogen sulfide and iron
Possible origin of chloroplasts and mitochondria
Can use carbon dioxide to produce organic molecules
Can obtain nourishment from external sources
Able to use oxygen as a final electron acceptor

Accepted Answer

The Answer of endosymbiont and chemoautotrophs and aerobic and autotrophs is...

Question 4

Roughly a quarter of all known species are currently threatened with extinction. What is the primary source of this threat?

Accepted Answer

The answer of Roughly a quarter of all known species...

Question 5

Compare the first forms of photosynthesis to evolve with the form used by green plants today.

Accepted Answer

The answer of Compare the first forms of photosynthesis to...

Question 6

Contrast homologous and analogous traits, giving examples.

Accepted Answer

The answer of Contrast homologous and analogous traits, giving examples....

Question 7

Scientists think that the first eukaryotic cells did not have a cell wall. Indicate a disadvantage to this, and tell how cells might have compensated for it. Give an advantage to this, and tell how cells might have exploited it.

Accepted Answer

The answer of Scientists think that the first eukaryotic cells...

Question 8

Many scientists feel that we are headed toward another mass extinction because of man's actions and our effect on the ecosystem Earth. What have we learned from previous mass extinctions that may provide an idea of the consequences of such a mass extinction? What should man do to try to prevent such an occurrence?

Accepted Answer

The answer of Many scientists feel that we are headed...

Question 9

How could the formation of membranes have promoted the evolution of the first true cells?

Accepted Answer

The answer of How could the formation of membranes have...

Question 10

Match between columns
                        Premises: E. coli
mosses and ferns
molds and yeasts
sponges
Euglena and Paramecium

Accepted Answer

The Answer of Archaea and Bacteria and Protista and Plantae is...

Question 11

Match between columns
                        Premises: Oxygen-producing photosynthesizers
First animals with calcium skeletons and shells
First land forms
First anaerobic heterotrophs
Eukaryotes
First multicellular organisms

Accepted Answer

The Answer of 8 billion years ago and 6 billion is...

Question 12

Match between columns
                        Premises: Possible origin of chloroplasts and mitochondria
Can obtain nourishment from external sources
Can use carbon dioxide to produce organic molecules
Can generate organic molecules using inorganic molecules like hydrogen sulfide and iron
Able to use oxygen as a final electron acceptor

Accepted Answer

The Answer of endosymbiont and heterotrophs and chemoautotrophs and autotrophs is...

Question 13

Match between columns
                        Premises: The dinosaurs became extinct.
The Cambrian Explosion has left fossils of many soft-bodied animals.
First cells to contain chloroplasts and mitochondria appeared.
Atmosphere is believed to be like ours today.
The single supercontinent Pangea is present.

Accepted Answer

The Answer of 580 million years ago and 245 million is...

Quiz 10: Lifes Origins and Biodiversity

Match the following events with the best estimated time.

How do we know that the atmosphere of the earth experienced an increase in O₂ and became oxidizing between 2.5 and 2 billion years ago?

Match the following examples with the correct descriptive term.

Roughly a quarter of all known species are currently threatened with extinction. What is the primary source of this threat?

Compare the first forms of photosynthesis to evolve with the form used by green plants today.

Contrast homologous and analogous traits, giving examples.

Scientists think that the first eukaryotic cells did not have a cell wall. Indicate a disadvantage to this, and tell how cells might have compensated for it. Give an advantage to this, and tell how cells might have exploited it.

How could the formation of membranes have promoted the evolution of the first true cells?

Match living form to its kingdom or domain.

Match the organism to the time frame that indicates when we first see fossil evidence this form existed.

Match the following examples with the correct descriptive term.

Match the following events with the best estimated time.

Quiz 10: Lifes Origins and Biodiversity

Match the following events with the best estimated time.

How do we know that the atmosphere of the earth experienced an increase in O2 and became oxidizing between 2.5 and 2 billion years ago?

Match the following examples with the correct descriptive term.

Roughly a quarter of all known species are currently threatened with extinction. What is the primary source of this threat?

Compare the first forms of photosynthesis to evolve with the form used by green plants today.

Contrast homologous and analogous traits, giving examples.

Scientists think that the first eukaryotic cells did not have a cell wall. Indicate a disadvantage to this, and tell how cells might have compensated for it. Give an advantage to this, and tell how cells might have exploited it.

How could the formation of membranes have promoted the evolution of the first true cells?

Match living form to its kingdom or domain.

Match the organism to the time frame that indicates when we first see fossil evidence this form existed.

Match the following examples with the correct descriptive term.

Match the following events with the best estimated time.

How do we know that the atmosphere of the earth experienced an increase in O₂ and became oxidizing between 2.5 and 2 billion years ago?