Life science review

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Luis is conducting an investigation to determine if modern horseshoe crabs evolved from extinct organisms called trilobites. Which of the following should Luis use to determine if there is evidence to support his idea?

• A. the fossil record of trilobites
• B. the population size of trilobites
• C. the traits of all extinct animals
• D. the population size of horseshoe crabs

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The work of many different scientists led to the development of the cell theory. Which of the following statements is NOT part of the cell theory?

• A. All cells come from other living cells.
• B. The cell is the basic unit of all living things.
• C. The cell provides everything a living thing needs.
• D. All living things are made up of one or more cells.

Tags

NGSS.MS-LS1-1

Green algae, slime molds, and protozoa are classified together in the kingdom Protista. Which of the following is one characteristic of all the members of this kingdom?

• A. They are all viruses.
• B. They all spread diseases.
• C. They are all single-celled.
• D. Their cells all have a nucleus.

Millions of years ago, a mass extinction of nearly all the dinosaurs occurred. This extinction included the herbivore Protoceratops. Many scientists think that a massive meteorite crashed into Earth. The impact sent up large clouds of dust that blocked out sunlight for months or even years. Which of the following explains how the impact could have caused Protoceratops to become extinct?

• A. Plants did not have enough sunlight to make their own food.
• B. Protoceratops did not have enough sunlight to make its own food.
• C. The dust settled and coved the plants that Protoceratops used as food.
• D. The animals that Protoceratops used as food could not find enough plants to eat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Sea grape is a native shrub with wide green leaves that grows on Florida's coastal dunes. Which of the following statements describes sea grape?

• A. It uses chlorophyll to trap the energy in sunlight.
• B. It uses chlorophyll to produce carbon dioxide.
• C. It stores and releases chlorophyll as waste.
• D. It breaks down chlorophyll as food.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An alligator's digestive system breaks down food, and its excretory system removes waste products. Which of the following do these and other organ systems make up?

• A. a cell
• B. a tissue
• C. an organ
• D. an organism

Tags

NGSS.MS-LS1-3

Refer to the following passage and table. Which of the following observations best supports Margulis's theory?

• A. Mitochondria and chloroplasts are similar in size, and both types of organelles have a single circular chromosome.
• B. Mitochondria, chloroplasts, prokaryotic cells, and eukaryotic cells are all less than 500 millionths of a meter in size.
• C. Mitochondria, chloroplasts, and prokaryotic cells are similar in size and have the same chromosome structure.
• D. A eukaryotic cell has many linear chromosomes, while a prokaryotic cell has a single circular chromosome.

Tags

NGSS.MS-LS4-2

Refer to the following passage and table. Which cell structures most likely developed from prokaryotes that were able to carry out photosynthesis?

• A. cell walls
• B. chloroplasts
• C. mitochondria
• D. vacuoles

Tags

NGSS.MS-LS1-6

NGSS.MS-LS4-2

Refer to the passage and table below. Which of the following best describes how a change in our scientific knowledge of cell structures happened?

• A. New technologies led to evidence in support of Margulis's theory of the origin of mitochondria and chloroplasts.
• B. Margulis conducted investigations that proved her theory of the origin of mitochondria and chloroplasts was correct.
• C. New technologies led to evidence that did not support Margulis's theory of the origin of mitochondria and chloroplasts.
• D. Skeptics conducted investigations that proved Margulis's theory of the origin of mitochondria and chloroplasts was not correct.

Tags

NGSS.MS-LS1-2