Classification

Which level represents the most specific group of organisms in the modern classification system?

• family

• genus

• order

• species

A yeast and an algae are both unicellular and eukaryotic, but they belong to different kingdoms. Which question would best help a scientist determine which kingdom each one belongs to?

• How does the organism move?

• Does the organism have cell walls?

• Is the organism an autotroph or heterotroph?

• Can the organism survive in water?

Tags

NGSS.MS-LS4-2

The table below lists the characteristics of four different organisms. Using the information given in the table, which is the best comparison between organisms?

• Organism W is a bacterium, while Organism X is a plant.

• Organism X is an animal, while Organism W is a fungus.

• Organism Y is a plant, while Organism Z is a protist.

• Organism Z is a fungus, while Organism Y is an animal.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

You observe an organism that is unicellular, has no nucleus, and is an autotroph. Could this organism be classified as a protist?

• Yes, because it is unicellular, and protists are unicellular.

• No, because it has no nucleus, and protists have nuclei.

• Yes, because it is an autotroph, and protists can be autotrophs.

• No, because it is an autotroph, and protists are heterotrophs.

After reviewing the submissions, scientists noticed two different looking frogs with the same name. In order to properly classify them, what would scientists need to do next?

• The scientists should name each frog using the phylum and class it is classified in.

• The scientists should apply the binomial nomenclature system to generate unique names for each.

• The scientists need to ask the community for the colors of the frogs they saw.

• The scientists need to measure the exact length and count the number of legs on each frog.

Scientists are studying a microscopic organism. Which question would help determine if this organism belongs to the Eukarya domain or the Bacteria domain?

• Does it have RNA?

• How does it reproduce?

• Does it have a nucleus?

• Can it move independently?

Scientists have classified a new organism into the domain Archaea. What additional information would help determine if it is more like bacteria in certain traits?

• Cell shape and size

• Ability to produce spores

• Number of cells and DNA structure

• Survival in extreme heat or salt

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Scientists classify protists and fungi into different kingdoms. Which statement explains why?

• A. Protists are prokaryotic and fungi are eukaryotic.

• B. Protists can be autotrophic or heterotrophic, while fungi are only heterotrophic.

• C. Protists are multicellular and fungi are unicellular.

• D. Protists live in water and fungi live on land.

Tags

NGSS.MS-LS4-2

The table below shows the characteristics of three different organisms.

According to the chart, which of the following best shows the classification of organisms?

• Organisms P and R would both be in Kingdom Bacteria.

• Organism P would be in Kingdom Archaea, while Organism Q would be in Kingdom Plantae.

• Organism R would be in Kingdom Protista, while Organism Q would be in Kingdom Fungi.

• Organism Q would be in Kingdom Plantae, while Organism R would be in Kingdom Animalia.

Tags

NGSS.MS-LS1-1

Cats and Felis silvestris are the scientific names for two closely related organisms. What is true about these two organisms?

• They are in the same species.

• They are in the same genus.

• They are not in the same kingdom.

• They are not in the same phylum.