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Birds

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Tierra Keeling

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Cards in this guide (17)
Approximately half of human body weight is composed of what kind of muscle tissue

Approximately half of the human body weight is composed of skeletal muscle that is voluntarily controlled. It is also referred to as striated muscle.

What nervous system initiates internal secretion contraction and absorption

autonomic

peace.love.faith

The Age of Reptiles occurred during the Era

The Age of Reptiles refers to the Mesozoic Era.

What scale is used to rate tornadoes by the amount of damage they cause

The Fujita scale determines the strength of the tornado based on the severity of the damage it causes. In the U.S. it has been replaced by the Enhanced Fujita scale.

Only two species of this mammal exist

elephant

Which two features of a bird help make it light enough to fly

hollow bones and air sacs :)

(A+ USERS)

What feathers are located underneath contour feathers

Down feathers

The majority of feathers on a bird's body are feathers

contour

The main functions of feathers are

Flight and Insulation

Filoplumes are also known as feathers

pin

Nitrogen is a necessary ingredient of what

Nitrogen is a necessary ingredient of ____.

All the feathers on a bird comprise the

plumage

What is the central cylinder of a feather

rachis

This structure branches off from the rachis and is similar to branches in a tree

barb

Do all birds have feet that end in claws

true

This part of the feather is embedded in the skin of the bird

quill

Touch is the result of receptors on the skin that can detect all except

A+ i know the answer and u dont:) look it up somewhere else its not here -tl

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