Checkpoint 1 Review - 7th Grade

Models can help scientists communicate their ideas, understand processes, and make predictions. Which of the following statements below is NOT correct pertaining to scientific models?

• Models communicate information.

• Models can be drawings with labels.

• Models can be a computer representation.

• Models must be exact replicas of the original.

Tags

NGSS.MS-LS1-2

What structure in the cell contains most of the cells genetic information? 

• B. mitochondria 
• C. nucleus 
• D. cytoplasm 
• cell membrane

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

A student observes the two types of cells seen under a microscope. Analyze the illustration below. Why would this NOT be considered a scientific experiment?

• because it requires the use of an expensive piece of equipment

• because there are no controls or variables to test using this protocol

• because it involves using just part of the organism instead of the entire thing

• because it forces a scientist to record data in visual form instead of numerical form

List the levels of classification in order from most general (and largest number of organisms) to most specific (and smallest number of organisms).

• Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

• Kingdom, Species, Phylum, Domain, Class, Order, Family, Genus

• Domain, Species, Phylum, Class, Family, Order, Kingdom, Genus

• Kingdom, Genus, Family, Order, Class, Species, Phylum, Domain

Mai tells Jaz her theory about why sea turtles nest on the beach instead of in the ocean. She says, “The turtle eggs would sink to the bottom of the ocean, and the baby turtle would drown.” Mai says her uncle, a fisherman, told Mai this information. Jaz tells Mai that her theory is not scientific. Why does Mai’s idea NOT meet the requirement to be a scientific theory?

• Mai and her uncle are not scientists.

• Mai’s idea is already a scientific law.

• Mai’s idea is not supported by scientific evidence.

• Mai’s idea is a good guess that can be tested by experiments.

A science class is studying an organism. Using a microscope, the class observed that the cells have nuclei and chloroplasts. In which Domain would the organism most likely be classified?

• Archaea

• Bacteria

• Eukarya

• Plantae

Tags

NGSS.MS-LS1-6

During an experiment, India examines prepared slides that her teacher has given her. One of the slides shows a single-celled organism that lives in soil. It has a nucleus and several internal structures. Which domain does the organism most likely belong to?

• Archaea

• Bacteria

• Eukarya

• Protista

Tags

NGSS.MS-LS1-1

Which of the following statements best describes a kingdom of Domain Eukarya?

• Kingdom Protista includes single-celled organisms that lack nuclei.

• Kingdom Animalia includes multicellular organisms that make their own food.

• Kingdom Plantae includes multicellular organisms that can move independently.

• Kingdom Fungi includes organisms that get energy by decomposing materials in their environment.

Ray-finned fish, amphibians, primates, and rodents are all organisms, and they look very different from each other. Although the organisms listed above look very different, they are all members of the same kingdom. Which kingdom do they belong to, and what is a characteristic shared by all organisms in this kingdom?

• Animal: all animals are multicellular.

• Eubacteria: all eubacteria have eukaryotic cells.

• Animal: all animals live in a marine environment.

• Protist: all protists can move around in their environment.

Tags

NGSS.MS-LS4-2

Markus conducts an experiment and records the number of yeast cells grown in separate petri dishes over three days. His data is recorded in the table seen below. Which part of the cell theory does the data best represent?

• All living things are made of cells.

• All cells come from preexisting cells.

• Cells are the basic unit of living things.

• Organisms may be unicellular or multicellular.

Tags

NGSS.MS-LS1-1