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Andrew [12]
4 years ago
5

Approximately 2 million years ago the genus Australopithecus gave rise to a new genus, Homo. Today, we retain the genus as Homo

sapiens. What important fossil evidence MOST likely helped scientists change the classification of those early human ancestors? A) opposable thumb B) teeth and skull size C) pelvis and leg bones D) spine alignment and foot size

Biology
2 answers:
kozerog [31]4 years ago
5 0
D - spine alignment and foot size.

Late australopiths had an S-shaped spine that allowed for balance when standing. Shorter and less flexible toes made pushing off the ground much easier.
neonofarm [45]4 years ago
3 0

The Correct answer is B.Teeth And Skull Size trust me i had this on usa test prep (look at screenshot)

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Read 2 more answers
Which guinea pig parent(s) in Punnett Square B is homozygous? Which is heterozygous? Explain how you know.
ArbitrLikvidat [17]
You did not provide an image for me, but I can explain.

Homozygous, with the root homo, means same. Therefore, a guinea pig parent with homozygous traits would have the traits being the same - either both recessive or both dominant, ie TT, tt.

Heterozygous on the other hand means different, therefore the traits would be one dominant and one recessive - for example, Tt.

If for the punnet square it has different traits (Combo RB for red and black or combo RW red white for like fur color) than heterozygous would be any that isn’t like TT or tt or any other letters used.

Hope this helps!
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