AS Human Biology Unit Two ; Chapter Ten

Revision notes for chapter ten of unit two AQA as Human Biology. made using the Nelson Thornes AQA endorsed class book. 

HideShow resource information
Preview of AS Human Biology Unit Two ; Chapter Ten

First 388 words of the document:

Chapter 10, Adaptations to a way of life
Successful Reproduction
Many mammals are only dependent on their mothers for a short period after birth.
They develop quickly and are born with many innate behaviour patterns to help them
Primate babies are much more dependent on their mother's than any other mammal
As primates have evolved, the infants have bigger brains more nutrients are
needed for the brain to grow it is born with some innate behaviour patterns but
survival ultimately depends on their mothers
Early humans have also developed the idea of food sharing improved survival and
made it easier to raise big brained children cements social relationships
Bigger brained infants longer period on dependency on the mother able to learn
more complex skills from the mother
Humans have the biggest brains and longest period of dependency on their mothers
among the primates leading to infants being able to learn more complex skills such
as language and tool use
Young primates engage in play practise adult skills such as fighting, finding food
and interacting with others enabling them to learn skills they will need as an adult
Once a young primate is past infancy it is learning from other members of the social
As humans evolved a longer childhood this meant that development of sexual
maturity was delayed
Reproductive organs do not grow significantly until puberty ensure humans cannot
reproduce until they have reached social maturity themselves (caring for a highly
dependent infant required the parent to have skills as well)
Adaptations of Human Behaviour
One of the most important skills humans learn is language
They also learn problem solving and can explore different activities and behaviours
through play
No other primate uses language
Language would have allowed early humans to tell each other what happened
during the day and where the best hunting site were
Older humans would be able to pass on information about things that had
occurred in the past
Language would have also have helped to develop culture
Language develops early in childhood so that the learning of complex ideas and
skills is easier

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Communication via facial expressions is found widely among higher primates
including humans
Humans have six basic facial expressions; happiness, sadness, surprise, anger, fear
and disgust
Facial expressions allow people to communicate when they speak different
languages and help to convey feelings
Adaptations of Human Anatomy
Humans are Bipedal ­ they walk on two legs
Bipedalism enable animals to look over tall vegetation to spot predators and
sources of food; arms can be used to communicate and make signals, can fight
more effectively; arms can be…read more


No comments have yet been made

Similar Human Biology resources:

See all Human Biology resources »See all resources »