Biodiversity (from ppt) Flashcards
1
Q
broadest category of geologioc time.
A
Era
2
Q
Earth’s formation from dust and gases
“Rockless eon”
A
Hadean
3
Q
appearance of single-celled organisms
A
Archean
4
Q
first multicellular organisms” arose
A
Proterozoic
5
Q
organisms with skeletons or hard shells appear
A
Phanerozoic
6
Q
trilobites, four-limbed vertebrates and the origin of land plants
A
Paleozoic era
7
Q
age of dinosaurs
A
Mesozoic era
8
Q
mammals and flowering plants “age of mammals”
A
cenozoic era
9
Q
anaerobic life forms and Photosynthetic organisms
A
Vendian
10
Q
trilobites
A
cambrian
11
Q
early fishes
A
ordovician
12
Q
land plants and animals
A
Silurian
13
Q
bony fishes and sharks “age of fishes”
A
devorian
14
Q
coal forest and first reptiles
A
carboniferous
15
Q
reptiles and decrease of trilobites
“age of amphibians”
A
permian
