The building block of living things is called

a. an organ

b. a cell

c. dna

d. an organ system

If you are taking the K-12 Quiz for Science Then these are the answers

1. Put these words in order from the smallest to the largest level of organization of an organism.

Cells 2

Tissues 3

Atoms 1

Organ Systems 5

Organism 6

Organs 4

2. Which statement about cell diversity is WRONG?

Unicellular organisms have many types of cells in their bodies.

3. Select all of the statements that are true about organs

Many Organs grouped together are called a tissue.

Many types of tissues can combine to form an organ

Organs can be grouped by their function. These groups are called systems.

4. What material determines how cells are built and what cells will do?

DNA

5. The building block of living things is called

a cell

That is all the answers to the quiz your welcome and happy to help :)

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

your answer is going to be physical weathering