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Fossil Image Bank Questions

The Evolution and Classification of Species

Homo ergaster (Frontal View)

Homo heidelbergensis (Frontal View)

BH_011_001 (32.0K)

BH_004_036 (31.0K)

1
Homo erectus was present in Africa for over one million years. During this time they underwent little morphological change essentially experiencing a long period of stasis. Around 600 kya there was the sudden appearance of a new species in Africa , Homo heidelbergensis, that had evolved from Homo erectus . What mode of evolution is this type of speciation associated with?
A)phyletic gradualism
B)punctuated equilibrium
C)cladistics
D)gene flow
E)anagenesis

Homo Neanderthalensis (Frontal View)

Homo heidelbergensis (Frontal View)

BH-019-036 (35.0K)

BH_022_1 (32.0K)

2
In Europe between at least 300 kya to 28 kya we see the steady accumulation of distinct Neandertal features over time. What mode or tempo of evolution is this type of speciation associated with?
A)gradualism
B)punctuated equilibrium
C)cladogenesis
D)mutation
E)sympatric







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