1.4a levels of organization

Question 1

atoms

Answer 1

smallest unit of matter that forms a chemical element. everything is made of atoms

Question 2

simple molecules

Answer 2

different atoms bonded together to form simple molecules

Question 3

macromolecules

Answer 3

large molecules, often the result of the polymerization of smaller molecules

Question 4

subcellular structures

Answer 4

specialized structures for a specific function within the cell

Question 5

cells

Answer 5

smallest unit that is capable of carrying out all functions of life

Question 6

tissue

Answer 6

a group of cells that work together to perform a specific task

Question 7

organs

Answer 7

a group of different tissues that form a singular unit and perform a singular function

Question 8

organs systems

Answer 8

a group of organs that interact to perform a similar function

Question 9

organisms

Answer 9

• a single living organism
• the unit for natural selection

Question 10

populations

Answer 10

• a group if organisms in the same species that live in the same area, at the same time

Question 11

communities

Answer 11

• all the different populations living in the same area at the same time

Question 12

ecosystems

Answer 12

• biotic and abiotic factors in an area
• study energy flow and nutrient cycling

Question 13

biomes

Answer 13

• large geographic areas with similar abiotic factors
• groups of similar ecosystems make up individual biomes

Question 14

biosphere

Answer 14

regions of earth where life exists (below the surface and into the atmosphere)

Question 15

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