Unit 1 Review

Put in order from SIMPLE to COMPLEX

• ecosystem

• community

• population

• organism

• biosphere

Biotic or abiotic?

Groups:

(a) Biotic

,

(b) Abiotic

• temperature

• mushroom

• human

• sun

• bacteria

• tree

• weather (climate)

• horse

• water

• land

All living things maintain an internal balance that is called

Select the abiotic factors

Select the biotic factors

Put the sentence in the correct order.

• Evolution

• change

• over

• time.

• is

Label the picture correctly.

a

b

c

d

e

cell

organism

organ

community

ecosystem

Organs are made of ​ ​ (a)   working ​ (b)   .

• large
• tissues
• together
• molecules
• populations
• small
• apart
• biosphere
• listen

What does "bio" mean?

• Life
• Water
• Earth
• Air

What does "sym" mean?

• together, same

• life, living

• to make

• large, big