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BIOLOGY 1104, Carleton University 2024 STUDY QUESTIONS AND ANSWERS $11.99   Add to cart

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BIOLOGY 1104, Carleton University 2024 STUDY QUESTIONS AND ANSWERS

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What are stromatolites? - rocks formed by the accumulation of sedimentary layers on bacterial mats What are stromatolites? - rocks formed by the accumulation of sedimentary layers on bacterial mats When was the oxygen revolution? - 2.7-2.3 bya Oldest Eukaryotes - 1.8 billion years ago O...

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  • July 2, 2024
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BIOLOGY 1104, Carleton University 2024
STUDY QUESTIONS AND ANSWERS
What are stromatolites? - rocks formed by the accumulation of sedimentary layers
on bacterial mats

What are stromatolites? - rocks formed by the accumulation of sedimentary layers
on bacterial mats

When was the oxygen revolution? - 2.7-2.3 bya

Oldest Eukaryotes - 1.8 billion years ago

Oldest fossil of a multicellular eukaryote - 1.6 billion years ago

What is a protist? - polyphyletic group of unicellular eukaryotes

when was the earliest direct evidence of life, and where was it found? - 3.5 billion
years ago, in stromatolites

when was the Ediacaran biota - 600-535 million years ago

What and when was the Cambrian explosion? - -A 20 million year period of
dramatic diversification in life
-535-525 million years ago

bilaterians have: - symmetric form
digestive tract
one way digestive system

Vertebrates have: - backbone

When did vertebrates first invade land? - 365 million years ago

when did plants and animals come on land - 500 million years ago

land plants evolved from - algae

, types of vascular plants - ferns
horsetales
whisk ferns

What is a gymosperm - "naked seed" plant

Angiosperms - flowering plants

when did animals move to land? - 460 million years ago

Arthropods are - First land animals

Tetrapods are - the only land vertebrates and are
lobe finned fish that evolved to live on land

Devonians extinction happened ________ because of ________. - 359 million
years ago
the success of trees on land

oldest placental mammals - 160 million years ago

K-Pg Extinction - Cretaceous-Paleogene extinction event 65.5 million years ago.
Killed off the dinosaurs. Caused by a giant meteor impact. Allowed mammals to
become dominant life form on earth.

Primates - originated after the K-PG extinction

oldest fossils of Homo Sapiens appeared in Africa - 195,000 years ago

Oldest fossil of Homo Sapiens outside Africa - 115,000 years ago

Humans are: - Apes with largest brains and bipedal locomotion

types of apes - Gibbons, orangutans, gorillas, chimps, and bonobos.

Hominins (age, location and closest relation) - 6-7 million years ago
africa
humans and chimps

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