Flashcards
History of life on Earth
Which element is present in all living organisms?
Copper
Iron
Helium
Carbon
Complete the sentence.
Amino acids serve as the fundamental building blocks of proteins, which are essential to life.
Complete the sentence.
It is believed that heterothropswere the first signs of life on Earth, absorbing organic material directly from the sea.
Earth was created around:
3.6 billion years ago
5.4 billion years ago
3.8 billion years ago
4.5 billion years ago
True or false?
Planet Mars is too far from Sun making it too cold to develop life.
True or false?
The Sun was created the same time Earth was.
True or false?
First life forms on Earth were multicellural organisms.
True or false?
It is most probable, that first living organisms on Earth inhabitet the oceans.
Which of those organisms are capable of synthesyzing energy from inorganic sources?
parasites
autotrophs
heterothrops
When the first living organisms developed?
The first living organisms arose about 3.5billion years ago
Remains of living organisms preserved in rocks are called fossils, and scientists who study them are called paleontologists.
True or false?
All present-day living organisms share common ancestor organism.
True or false?
Photosynthesis first emerged around 3.5 billion years ago.
True or false?
First multicellural organisms emerged about 250 million years ago.
True or false?
When Earth first formed, the oxygen in the atmosphere was almost non-existent.
Process of diversification of organisms into different species over the successive generations is called:
evolution
Which bacteria were resposible for starting the mass produciton of atmospheric oxygene?
Cyanobacteria
Lactobacillus
Escherichia coli
Rhizobium
What is the name of theory describing continental movement?
The theory of continental driftclaims that continents slowly move across the Earth.
What is Pangea?
first plant species that emerged around 450 million years ago
an era when dinosaurs appeared
planet that collided with the moon before life appeared on Earth
large supercontinent that existed about 250 million years ago
large supercontinent that existed about 250 million years ago
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