Unit B: Section 1.0 Flashcards Preview

Grade 8: Science > Unit B: Section 1.0 > Flashcards

Flashcards in Unit B: Section 1.0 Deck (32):
1

What are two other names for living things?

Biotic
Organisms

2

What is a cell?

A cell is the basic unit of life. They perform the processes that life depends on.

3

Where do cells come from?

All organisms are made up of at least one cell. And every cell comes from another cell

4

Do non-living things have cells?

No, unless the non-loving thing was once alive

5

Why do all living things need energy?

Energy gives organisms energy to make things move or change

6

How do plants and animals abstain energy?

Plants use energy from the sun to make food
Animals get food from the environment around them

7

What is metabolism?

The sum of all the processes that take place in the cell

8

What is a stimulus?

A stimulus is anything that causes s response in an organism

9

Do you ever stop growing?

No, never. Because you will always be hurting yourself and you'd have to grow new skin

10

What is adaption?

An adaption is a characteristic that allows an organism to live in its environment

11

What are the parts of an organism that provide a specific task called?

Structure

12

What are different structures that some animals and plants use?

Wings, tails, legs, and arms

13

Why are there many variations on structures that perform the same function?

It depends on what kind of food the species eats and what kind of environment they live in

14

What is a system?

A bunch of organs put together to perform a function

15

What is an organ?

A part of an organ system

16

What is the function of the circulatory system?

•Transport oxygen food and other substances throughout the body
•Transport some wastes to other organs for elimination
•Defend the body against diseases
•Connect all other organ systems

17

What organs are part of the circulatory system?

Heart
Arteries
Veins
Capillaries
Blood

18

What are the functions of the respiratory system?

•Transport oxygen from the outside air to the blood
•Transport carbon dioxide from the blood to the outside air

19

What organs are part of the respiratory system?

Nose
Mouth
Trachea
Diaphragm
Bronchi
Lungs

20

What is the functions of the digestive system?

•Break down food pieces into much smaller particles so they can be absorbed and transported throughout the body

21

What are the organs in the digestive system?

Salivary glands
Mouth
Esophagus
Stomach
Liver
Pancreas
Gall bladder
Small intestine
Large intestine

22

What are the functions of the nervous system?

•Coordinate and control the actions of all organs and organ system
•Detect, prices, and respond to changes in external and internal environments

23

What is the function of the excretory system?

•Remove chemical and gaseous waste from the blood

24

What organs are part of the excretory system?

Kidneys
Bladder
Lungs
Skin
Liver

25

What are the functions of the skeletal system?

•Provide moveable support frame for the body
•Protect soft tissue organs such as the heart and lungs

26

What are the parts of the nervous system?

Brain
Spinal cord
Sensing organs

27

What are the parts of the skeletal system?

Bones
Cartilage

28

What is the function of the muscular system?

•Move bones
•Move organs that contain muscle tissue

29

What are the functions of the integumentary system?

•Protect the body's internal environment from the external environment
•Senses pain, pressure, and temperature

30

What are the parts of the integumentary system?

Skin

31

Which systems classify us as living?

For grow and develop the integumentary system because the skin grows
For respond to the environment nervous system
For need energy the digestive system because it breaks down the food particles

32

What are the characteristics of living things?

•They are made of cells
•They need energy
•They grow and develop
•They respond to their environment
•They reproduce
•They have adaptations for their environment