History of life on Earth

1.

Multiple Choice

30 sec

1 pt

The idea that Earth's early oceans had organic molecules that became the first life is called.

primordial soup

bubble hypothesis

Miller-Urey Experiment

radioactive dating theory

2.

Multiple Choice

30 sec

1 pt

Cellular life may have begun with ____________ made of amino acids.

macrospheres

microspores

microspheres

macrospores

3.

Multiple Choice

30 sec

1 pt

Microspheres had DNA so they were able to pass their characteristics along to their offspring.

true

false

4.

Multiple Choice

30 sec

1 pt

___________________ evolved after RNA

amino acids

atoms

DNA

molecules

5.

Multiple Choice

30 sec

1 pt

The first eukaryotic cells are more likely to have evolved from ______________ than eubactria (true bacteria).

exocytosis

endosymbiosis

organelles

Archaebacteria

6.

Multiple Choice

30 sec

1 pt

The group __________________ includes many of the bacteria that cause our diseases.

Plantae

Archaebacteria

Eubacteria

Animaliae

7.

Multiple Choice

30 sec

1 pt

The oldest known fossils of multicellular organisms were found in rocks older than the

Cambrian period

Precambrian period

Hadeon Era

8.

Multiple Choice

30 sec

1 pt

Why do most scientists think the 6th mass extinction is occurring now?

Human activity is destroying ecosystems

animal competition is decreasing species diversity

They don't

9.

Multiple Choice

30 sec

1 pt

When did life probably first appear on Earth?

4.8 billion years ago

3.8 billion years ago

4.8 million years ago

3.8 million years ago

10.

Multiple Choice

30 sec

1 pt

The first simple life was ....?

Animal life

Plant life

Eukaryotic

Prokaryotic

11.

Multiple Choice

30 sec

1 pt

The atmosphere in the first 2 billion years of the history of planet Earth was lacking which gas?

Ammonia

Carbon dioxide

Methane

Oxygen

12.

Multiple Choice

30 sec

1 pt

These photosynthesising bacteria appeared about 2.5 billion years ago. They are called ...?

Archaea bacteria

Spirogyra

Cyanobacteria

Eukaryotes

13.

Multiple Choice

30 sec

1 pt

These photosynthesising bacteria appeared about 2.5 billion years ago and are so important because ...?

They released oxygen into the atmosphere

They removed carbon dioxide from the atmosphere

They could synthesise their own sugar molecules

All of the answers are correct

14.

Multiple Choice

30 sec

1 pt

Eukaryotic cells probably first appeared how long ago?

4.8 billion years ago

3.8 billion years ago

2.7 billion years ago

1.4 billion years ago

15.

Multiple Choice

30 sec

1 pt

The history of planet Earth is subdivided into several eras, marked by the life at the time. Which era contained ONLY prokaryotic forms of life?

Pre-cambrian

Palezoic

Mesozoic

Cenozoic

16.

Multiple Choice

30 sec

1 pt

Which is the era of the dinosaurs?

Pre-cambrian

Paleozoic

Mesozoic

Cenozoic

17.

Multiple Choice

30 sec

1 pt

Which is the era in which we live today?

Pre-cambrian

Paleozoic

Mesozoic

Cenozoic

18.

Multiple Choice

30 sec

1 pt

Most eras and many periods during the history of the planet Earth, came to an end because of ...?

Global warming

A mass extinction event

Ice ages

A rapid evolution of a dominant species of animal

19.

Multiple Choice

30 sec

1 pt

What is/was the cause of the Anthropocene mass extinction event?

Humans

Asteroids

Global warming

Ice age

20.

Multiple Choice

3 mins

1 pt

The 8 levels of classification, most broad to most specific.

Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species

Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus

21.

Multiple Choice

2 mins

1 pt

According to this cladogram, sharks are MOST closely related to which organism?

Amphibians

Ray finned fish

Crocodiles

Birds

22.

Multiple Choice

3 mins

1 pt

Which two orgainsms have hair?

Sharks & Ray Finned Fish

Primates & Rodents

Birds & Crocodiles

Rabbits & Birds

23.

Multiple Choice

45 sec

1 pt

Which kingdoms are prokaryotic?

Archaebacteria and Animalia

Eubacteria and Archaebacteria

Fungi and Protista

Plantae and Eubacteria

24.

Multiple Choice

30 sec

1 pt

One limitation of the Linnaean classification system is that it

organizes organisms into groups.

allows scientists to discuss organisms.

does not use organisms’ common names.

is based on physical characteristics alone.

25.

Multiple Choice

30 sec

1 pt

In classification, a species is defined as

the most general taxon of the classification system.

a group with similar physical characteristics.

the commonly used name for an organism.

a group of organisms that can breed and produce offspring.

26.

Multiple Choice

30 sec

1 pt

In the following cladogram, the hagfish is considered an outgroup because it

shares no derived characters with other groups being studied.

shares specific traits in common with the other species on the cladogram.

is the closest common ancestor to every other species.

has the ability to breed and produce offspring with each other.

27.

Multiple Choice

5 mins

1 pt

The evolutionary history for a group of species which can be shown as a branching tree

Life history

Fossil record

Common ancestry

Phylogeny

28.

Multiple Choice

5 mins

1 pt

Most scientists agree that ____________ should have the "last word" when it comes to figuring out how species are related.

Physical traits

Embryonic development

DNA

Classification

29.

Multiple Choice

30 sec

1 pt

Which question were the scientists trying to answer with this experiment?

Where do cells come from?

How did prokaryotes form cell membranes?

How are biomolecules formed?

What gave rise to the Eukaryotic cell?

30.

Multiple Choice

30 sec

1 pt

The apparatus in the experiment was used to mimic what?

Proteins

Present Earth conditions

Early Earth conditions

Nucleic acids (DNA/RNA)

31.

Multiple Choice

30 sec

1 pt

Miller/Urey and other scientists have shown that:

Life on early Earth required material from space

Cells survived in the primitive atmosphere

Amino acids could be produced from inorganic molecules

Simple cells can be produced in a laboratory

32.

Multiple Choice

2 mins

1 pt

Based upon the conditions of the early Earth, which forms of life most likely appeared first? (aerobic-needs Oxygen; anaerobic-does not)

Prokaryotic and aerobic

Prokaryotic and anaerobic

Eukaryotic and aerobic

Eukaryotic and anaerobic

33.

Multiple Choice

30 sec

1 pt

The oxygen gas present in our atmosphere today most likely originated from

the first plant species

decomposition by anaerobic bacteria

aerobic respiration producing oxygen from carbon dioxide

photosynthetic prokaryotes

34.

Multiple Choice

20 sec

1 pt

A system of naming organisms in which each organism is given a genus and species name

binomial nomenclature

genus-species name

speciation

evolutionary classification

35.

Multiple Choice

10 sec

1 pt

The process by which new species develop

rapid speciation

speciation

adaption

derived character

36.

Multiple Choice

2 mins

1 pt

Two or more species evolve together

convergent evolution

coevolution

punctuated equilibrium

adaptive radiation

37.

Multiple Choice

15 mins

1 pt

Cyanobacteria were important in the origin of life on earth because they were able to undergo ________________ and produce ____________________.

photosynthesis, oxygen

photosynthesis, nitrogen

cellular respiration, oxygen

cellular respiration, ATP

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