Lucy & Evolution
This word means walking on two feet.
Bipedal
Jane Goodall studied these primates at Gombe Stream Reserve.
Chimpanzees
A thumb that can move opposite the fingers is called this.
An opposable thumb
This part of the brain helps with balance and coordinated movement.
Cerebellum
Large optic lobes suggest an animal has a strong sense of this.
Sight / vision
Lucy lived about this many million years ago.
Hint: #.# million years ago
3.2 million years ago
Goodall observed chimps caring for and nursing their young. This behavior is called this.
Parental care
In the padlock investigation, the variable the scientist changed was this type of variable.
Independent variable
The largest part of the brain, which controls voluntary thought and actions, is the _____.
Cerebrum
Large olfactory bulbs suggest an animal relies heavily on this sense.
Smell
Lucy’s pelvis and knee bones gave evidence that she could do this.
Walk upright / walk on two feet
Humans and chimpanzees share many traits because of this evolutionary relationship.
They share a common ancestor
In the padlock investigation, the time it took to open the lock was this type of variable.
Dependent variable
This structure connects the brain to the spinal cord and controls basic functions.
Brain stem
A sheep brain is most similar to the brain of this type of animal.
A mammal
The shared extinct species from which hominids and chimpanzees descended is called this.
A common ancestor
Goodall observed chimps showing movements, interactions, gestures, and grunts. These are scientific _____.
Observations
“What effect will jumping jacks have on a person’s pulse?” is a good example of this.
A testable question
Walking upstairs using skeletal muscles is this type of behavior.
Voluntary behavior
A cat has a well-developed cerebellum because it needs strong skills in this.
Coordination and balance
Scientists estimate that bipedalism evolved sometime between these two time periods.
7.3 and 3.2 million years ago
The fact that chimpanzees care for their young helps show they can have this.
Emotions / social behaviors
After using data to decide whether a prediction was supported, a scientist writes this.
A conclusion
Blinking is this type of behavior because the body controls it automatically.
Involuntary behavior
Phineas Gage’s brain injury showed that different regions of the brain have this.
Specialized functions / different jobs