

Understanding Brain Size and Intelligence
Interactive Video
•
Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the introduction suggest about the relationship between brain size and intelligence?
Bigger brains always mean higher intelligence.
Brain size is not the sole determinant of intelligence.
Humans have the smallest brains among primates.
Brain size has been increasing over the last 20,000 years.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did the 2015 meta-analysis reveal about brain size and IQ?
Brain size accounts for a small percentage of IQ variation.
There is no correlation between brain size and IQ.
Earlier studies showed no correlation between brain size and IQ.
Brain size accounts for most of the variation in IQ.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the concept of dendrite arborization suggest about brain efficiency?
More dendrites always lead to higher intelligence.
Fewer dendrites can lead to more efficient brain function.
Dendrite arborization has no impact on brain efficiency.
More dendrites result in slower brain processing.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the analogy of finding a friend's house illustrate about brain function?
More connections always lead to faster processing.
Connections have no impact on brain function.
Having many routes is always beneficial.
Fewer, more direct connections can lead to quicker thinking.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the research suggest about the relationship between neuron connectedness and intelligence?
Highly connected neurons always make you smarter.
Less connected neurons can lead to more efficient thinking.
Neuron connectedness has no impact on intelligence.
More connections always result in higher intelligence.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does brain folding contribute to cognitive ability?
It helps neurons with similar functions to group closer together.
It has no impact on cognitive ability.
It allows neurons to communicate less efficiently.
It decreases the brain's ability to process information.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the local gyrification index (LGI) in the study of brain folding?
It assesses the number of neurons in the brain.
It measures the size of the brain.
It determines the weight of the brain.
It calculates the extremeness of brain folding.
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