BRAYTON REASON FOR ENCOUNTER
FLANK PAIN STUDY GUIDE PRACTICE
QUESTIONS AND COMPLETE ANSWERS
GRADED A+
⩥ Physical appearance of Homo erectus.
Answer: - slightly smaller brain and jaw
- thinner legs, shorter arms
⩥ What makes them the "first human societies?"
Answer: First fire makers and hunters, tool makers
⩥ What and where is the Great Rift Valley?
Answer: East Africa plains and canyons a place where human evolution
played out
⩥ Describe Turkana Boy in detail.
Answer: - complete Homo erectus skeleton 5 foot 3 inches
- Build closer to man than an ape
- early true human, wider hips, arms a little longer
,- over all just like ours: looked to be 14 years old and turns out he was
only 8 years old
⩥ Describe Homo erectus tools. What does their tool technology tell us
about them?
Answer: stone hand ax
⩥ Modern brains consume _____% of the body's energy.
Answer: 25%
⩥ How did Homo erectus survive against predators and hunt with an
advantage?
Answer: - Using stone tools in order to eat well
- Meat —> high in protein and fat as well as easy to digest
⩥ When did our ancestors lose their body hair?
Answer: 3 mya
⩥ How has that been tested?
Answer: - the molecular clock
- to count the number of differences between the DNA of human lice and
gorilla lice
,⩥ Why did we become social? What might have contributed to our
becoming social creatures?
Answer: Building fires sitting around fire to wait for the food to cook
they began to communicate
⩥ H. erectus teeth and gut became smaller, providing more evidence that
they used _________.
Answer: Fires to cook their food
⩥ When did H. erectus leave Africa? What evidence do we have?
Answer: - they left 1.8 mya
- fossil finds such primitive skeletal bones
- found in Diminisi, Georgia
⩥ Describe Homo floresiensis. Where were they found? What is their
age?
Answer: - Flores, Indonesia
- Tiny human ancestor
- The Hobbit 3 1/2
- 400 cc brain size smaller than Lucy
- Primitive skeletal bones
⩥ What is island dwarfism?
, Answer: - isolated on islands with limited food
- large mammals sometimes shrink over time due to little nutrients
⩥ What affects did climate have on our ancestors?
Answer: - key driving force to migration
- hominids migrated following the animals
⩥ How long has our species been around?
Answer: 200,000
⩥ What does the presence of an elderly man with no teeth tell us about
our ancestors?
Answer: - survived 2 years without teeth must mean other members of
the group were feeding him or chewed the food for the old man
- characterized the instinct to look after each other
⩥ When did Homo erectus first appear? Physical appearance?
Answer: 2 mya
thin jaw, longer legs, bigger brain
⩥ What makes them the "first human societies?"