Human Evolution and Breathing

What is human evolution?

• Long process of change by which primates became modern humans

• Long process of change by which humans became modern primates

• Long process of change by which hominids turn into humans

• Long process of change by which humans became homo habilis

...... were the first homonids to create and use stone tools, an ability that reduced selection pressures for large jaws and teeth.

• Homo sapiens

• Homo erectus

• Homo habilis

• The australopithecus

...... were the first homonids to create and use stone tools, an ability that reduced selection pressures for large jaws and teeth.

• Homo sapiens

• Homo erectus

• Homo habilis

• The australopithecus

What is the scientific name for modern humans?

• Australophithecene
• Homo ergaster (erectus)
• Homo habilis
• Homo sapiens

Homo erectus most important discovery was

• the use of animals for labour

• the use and control of water resources

• the use and control of fire

Early humans evolved dark skin because..

• melanin protects the body from harmful UV rays

• dark skin helps humans to camouflage

• dark skin can be used to scary away predators

• melanin helps to absorb more UV rays

This feature allowed hominins to work in groups, communicate, solve problems, and create new things.

• large brain

• color vision

• smaller teeth

• bipedalism

This feature allowed hominins to work in groups, communicate, solve problems, and create new things.

• large brain

• color vision

• smaller teeth

• bipedalism

Click all of the following true statements about skull evolution

• Sinus spaces grew larger

• Mouths became more narrow due to increased processing of food

• The jaw moved backwards

• Because of moving to a colder climate, the nose became more broad in order to warm air

• As vocal sounds expanded, the larynx moved lower into the throat

The use of fire to increase the processing of food before it was consumed allowed:

• People to start trying other restaurants besides sushi ones

• More energy to be released from the food

• Less chewing for more calories

• The brain to shrink