GMAS Practice

Muscle cells in athletes often have more mitochondria than muscle cells in nonathletes. Based on this observation, it can be inferred that the muscle cells in athletes

• have a smaller demand for cell proteins than the muscles cells of nonathletes

• reproduce less frequently than the muscles cells of nonathletes

• have nuclei containing more DNA than nuclei in the muscle cells of nonathletes

• have a greater demand for energy than the muscle cells of nonathletes

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-7

What is the function of light independent reactions in photosynthesis?

• convert glucose into glycogen

• produce ATP for cellular reactions

• provide energy for producing glucose

• generate carbon dioxide for respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following diagrams accurately represents the use of gases in both cellular respiration and photosynthesis?

• 
• 
• 
• 

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

One characteristic of all living things is that they

• develop organ systems

• produce identical offspring

• maintain internal stability

• synthesize only inorganic matter

Tags

NGSS.MS-LS1-5

This represents a cell. Which organelle is the site where amino acids are synthesized into proteins?

• 1

• 2

• 3

• 4

Answer explanation

Ribosomes looked like dots!

A forest of trees with white bark is home to a species of gray moth and to birds which prey on them. Pollution made the bark of the trees go black. Several years later most of the moths had wings that were

• shorter

• longer

• lighter

• darker

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

This diagram represents one possible evolutionary change that could have led lobe-finned fish to develop into the first amphibians. Amphibians are animals that live on land some of their life.

This change from fins on the lobe finned fish to legs and feet on the early amphibian is most likely due to

• sudden mutation that changed the gills of the lobe finned fish to lungs

• increased competition between animals that had adapted to living on the land

• the need to move to land because of the increased competition for food in the ocean

• variations among offspring, followed by natural selection

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which statement correctly interprets the importance of structures in biological classification system?

• animals with homologous structures are closely related genetically

• animals with analogous structures are closely related genetically

• animals with homologous structures develop analogous structures

• animals with analogous structures develop homologous structures

Tags

NGSS.MS-LS4-2

On a small isolated island, there is a single species of seed-eating birds. Individual birds are able to eat seeds that are within 2 mm (larger or smaller) of their beak depth. The distribution of individuals is shown in the chart.

A long drought caused the plant species that produce seeds between 3-9 mm in size to go extinct. What does the Theory of Natural Selection predict will happen to the population of seed-eating birds over time?

• It will permanently shrink to approximately 25% of its current size

• It will go extinct because there aren't enough seeds to support all of the individuals

• It will diverge into 2 species; one that eats small seeds and one that eats large seeds

• It will adapt and the birds that ate the medium sized seeds will learn to eat fish, insects, or other animals

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

This photograph shows a recently discovered all-black penguin chick and several typical black and white chicks.

The appearance of this penguin chick with all black feathers might

• increase the types of food penguins can eat

• decrease the diversity of the penguin populations

• decrease the number of variations present in the black penguin population

• result in an increase in black penguins over time if the trait provides a reproductive advantage

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4