biology review

Teeth

________ are reduced in size and usually are unspecialized.

Charles Darwin

________: developed a theory of evolution based on natural selection.

Newborns

________ are dependent on their mothers for an extended period of time.

theory of evolution

The ________: is supported by natural selection and explains the diversity of life.

Charles Darwin

developed a theory of evolution based on natural selection

the theory of evolution

is supported by natural selection and explains the diversity of life

artificial selection

the process of directed breeding to produce offspring with desired traits, referred to as selective breeding

evolutions

cumulative changes in groups of organisms through time

examples

lemurs, sifakas, etc

the anthropoids

are split into the new world

bipedalism

2 legs

genus

homo

homo habilis

handy man

homo ergaster

use tools and migrate

homo erectus

use fire

Jave man

Indonesia (1840)

pekin man

China (1920)

natural selection

theory of evolution developed by Darwin, based in 4 ideas: excess reproduction, variations, inheritance, and the advantages of specific traits in an environment

homo sapiens

language and culture

homo florensiensis

the hobbit

homo Neanderthals

Europe and language

characteristics of primates

five digits on each hand and feet

flat nails and sensitive areas on the ends of their digits

the first digits are opposable

manual dexterity

senses

color vision

rely more on vision

binocular vision results in greater depth perceptium

teeth are reduced in size and usually are unspecialized

locomotion

flexible bodies

limber shoulder and hips

all primate excepts humans walk on all limbs

complex brain and behavior

have large brains compare to their body size

good memory and coordination

problem-solving abilities

well-developed social behavior

reproductive rate

have fewer offspring

newborns are dependent on their mothers for an extended period of time

many are endangered

primate groups

arborial

terrestrial

wet-nosed

dry-nosed

strepsirrhines

have large eyes and ears

rely predominantly on smell for hunting and social interaction

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haplorhines

the apes included orangutans, gorillas, chimpanzees, and humans

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characteristics of hominoids

they have larger bodies

they have larger brains compare to primates

unique molar teeth

they lack tails

characteristics of hominins

larger brains

the position of foramen magnum