SC.6.L.15.1

What are the characteristics of living things that help them respond to their environment?

• They are made of cells

• They use energy

• They respond to stimuli

• They reproduce

How do scientists classify living things based on their characteristics?

• By their color

• By their size

• By their physical and chemical characteristics

• By their location

What is the process of putting objects into groups based on common characteristics called?

• Sorting

• Classification

• Grouping

• Organizing

Why is energy important for living things?

• It helps them grow and move

• It makes them colorful

• It keeps them warm

• It helps them sleep

What is the broadest level of classification in the hierarchy of organisms?

• Species

• Genus

• Domain

• Family

Which of the following characteristics is used to classify organisms into domains?

• Color of the organism

• Type of cell (with or without a nucleus)

• Habitat of the organism

• Size of the organism

Which domain includes organisms that are all unicellular and lack a nucleus?

• Eukarya

• Archaea

• Bacteria

• Plantae

What is a key difference between organisms in different domains?

• They all have the same number of cells.

• They have very little in common.

• They all make their own food.

• They all have a nucleus.

The chart below shows the order, family, genus, and species for four different animals. Based on the chart, which two are most closely related? How do you know this?

• Organism 1 and 2; they share the same genus.

• Organism 2 and 3; they share the same family.

• Organism 3 and 4; they share the same order.

• Organism 1 and 4; they share the same species.

In which domain would humans be classified?

• Domain Archaea

• Domain Eukarya

• Domain Bacteria

• Domain Protista