Mod 11

Question 1

Axial skeleton

Answer 1

The portion of the skeleton that supports and protects the head, neck, and trunk.

Question 2

appendicular skeleton

Answer 2

The portion of the skeleton that attaches to the axial skeleton and has the limbs attached to it.

Question 3

Exoskelton

Answer 3

A body covering typically made of chitin, that provides support and protection.

Question 4

symbiosis

Answer 4

A close relationship between two or more species where at least one benefits.

Question 5

what three things make up the human superstructure

Answer 5

skeleton muscles and skin

Question 6

what are the two main differences between smooth muscles and skeletal muscles

Answer 6

Skeletal muscles are the big muscles that control the main functions the smooth muscles are the ones that control the finer movements

Question 7

Where is the cardiac muscles found? voluntary or involuntary

Answer 7

Heart. involuntary

Question 8

What is produced in red bone marrow

Answer 8

red bloodcells

Question 9

What is keratinization. what is it used for

Answer 9

Process by which skin hardens and turns into hair and nails and outer layer of skin

Question 10

What two principal substances make up bone? what qualities do they provide to the bone?

Answer 10

Cells and Bone matrix

Question 11

what is the difference between compact and spongy bone tissue

Answer 11

the way the tissue is packed together. Compact is packed tightly and spongy is packed loosely

Question 12

are bones alive

Answer 12

yes

Question 13

difference between V and I is possible to be niether

Answer 13

one has a vertebrate one does not . NO

Question 14

are your are part of the appendicular skeleton or the axial skeleton

Answer 14

APP

Question 15

What is the difference between an endoskeleton and an exoskeleton? what do we call organisms with exoskeletons

Answer 15

Endoskeleton is the the sum total of the bones. Exoskeleton provides protection.

Question 16

Order the following joints in terms of increasing range of motion.

Answer 16

Hinge saddle ball and socket

Question 17

What purpose do ligaments serve in the joints? What about cartilage?

Answer 17

Holds them together. goes between bones and allows them to rub against each other without damage.

Question 18

How do skeletal muscles attach to the skeleton.

Answer 18

They keep your skin moist. Cover it in a acid that kills bacteria.

Question 19

Describe

Answer 19

one contracts and one relaxes

Question 20

Are the muscles in your stomach smooth muscles or skeletal muscles.

Answer 20

Smooth

Question 21

What do we call this?

Answer 21

phototropism

Question 22

Functions of hair

Answer 22

keeps you warms provides sense of sense.

Question 23

Why do skin cells constantly fall off your body?

Answer 23

because they are dead.

Question 24

What do the sebaceous glands produce and what are the substance’s to main purposes?

Answer 24

oil. softens hair and skin. keeps skin moist.

Question 25

For the following animals, classify each an each animal as a bird reptile or amphibian.

Animal with hair.

An animal that breathes though its skin.

An animal with scales.

An animal with feathers.

Answer 25

Mammal

Amphibian

Reptile

Bird