SCIENCE 4TH II parcial

where is locate the eardrum?

• the ear

• cochlea

• the earcanal

• the middle ear

which layer of the skin is the botton layer?

• demis

• pupil

• eardrum

• hypodermis

why do we need both muscles and bones to move our body?

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how the object make sounds?

• by crashing

• by sounding

• by vibration

which layer protects the other layers of skin?

is a layer of fat and connective tissue?

• dermis

• hypodermis

• epidermis

is the responsible for sense of touch?

which part of the eyes proyects an image onto the retina?

• iris

• optic nerve

• scala

• lens

which is the biggest organ in the human body?

what is the main job of the pinna?