The karyotype, or chromosomal profile, for humans is shown. A karyotype can be used to investigate genetic disorders. The chemical colchicine is used in the production of karyotypes. Colchicine prevents spindle fibers from forming during the cell cycle.

Mitotic division stops in metaphase and cannot proceed to anaphase.

The cell cycle skips G0 phase and repeats G1 phase.

Mitotic division is skipped, and the cell cycle proceeds to cytokinesis.

The cell cycle skips S phase and proceeds to G2 phase.

A team of students encounters an unknown organism in a field while conducting a biodiversity study. Some students think the organism is a plant, while others think it is a fungus. Which question should the students investigate to classify the organism correctly?

Does the organism perform photosynthesis?

Is there a cell wall around the cells of the organism?

Is there nervous tissue present in the organism?

Does the organism reproduce sexually?

The diagram shows data on the evolution of horses.The data in the diagram is evidence that —

horses slowly developed over time

a new species of horse suddenly appeared

horses have similar stages of rapid embryological development

horses have a common ancestry with other hooved animals

A student produces a labeled drawing of a virus for a presentation. The student states that the capsid has a function similar to the nuclear membrane found in animal cells. Which of these describes the similar functions of capsids and nuclear membranes?

Both protect genetic information for the structures.

Both transport proteins throughout the structures.

Both provide energy for activities in the structures.

Both code for the proteins needed for reproduction of the structures.

Enzymes are proteins that have a three-dimensional shape that is specific to a particular substrate. Environmental conditions can change the shape of the protein. What is the most likely result if the shape of the enzyme changes?

The enzyme will no longer be able to catalyze the reaction with the substrate.

The substrate will change its shape to match the enzyme.

The products made from the enzyme and the substrate will be changed.

The enzyme will be able to bind to more diverse substrates than before.

A type of cellular transport is shown. Which description best identifies this type of cellular transport?

Active transport, because energy is being used to move molecules against the concentration gradient

Facilitated diffusion, because energy is being used to move molecules with the concentration gradient

Osmosis, because energy is not being used to move molecules with the concentration gradient

Endocytosis, because energy is not being used to move molecules against the concentration gradient

The aye-aye lemur is a mammal that feeds mostly on insect larvae that live inside trees. The aye-aye lemur has a specialized middle finger that is long and thin. The aye-aye lemur moves along a tree branch and taps the branch with its specialized finger. When the aye-aye lemur hears a difference in the echo, it will tear open the bark with its teeth until the insect tunnel is exposed. The aye-aye lemur then uses its specialized finger to reach the insect larvae and remove it.Which selective pressure most likely resulted in the development of the aye-aye lemur’s special adaptation?

Food sources that are hard to find

Large numbers of natural predators

Gibberellins are hormones produced in the root tips of plants. The plant uses these hormones to stimulate the growth of shoots. How are gibberellins able to affect other parts of the plant?

Gibberellins are transported through vascular tissues to other parts of the plant.

Gibberellins are absorbed through the stomata and attach to chloroplasts.

Gibberellins become concentrated within the tissues of the plant during mitosis.

Gibberellins become modified once they infect healthy cells and are later released to infect other cells.

A partial Texas food web is shown. The populations of which organisms will most likely increase as a result of a disease that suddenly reduced the population of Texas horned lizards?

Grasshoppers and Texas cottonmouths

Texas cottonmouths and red-shouldered hawks

A biomass pyramid of an ecosystem is shown. Which statement provides the best explanation for the difference in biomass of organisms found at each trophic level?

Organisms at higher trophic levels have less energy available to them than organisms at lower trophic levels.

Organisms at higher trophic levels require smaller habitats than organisms at lower trophic levels.

Organisms at lower trophic levels provide less energy than organisms at higher trophic levels.

Organisms at lower trophic levels outcompete organisms at higher trophic levels.

CRISPR-Cas9 is a genetic modification technique that edits parts of the genome of an organism. Using this technique scientists can add, remove, or modify sections of the DNA sequence. How can scientists use this technique to control gene expression?

By activating or deactivating specific genes

By calculating the number of genes different organisms produce

By identifying how closely related one individual is to another

By determining the number of chromosomes in an organism

Many tree frog populations are threatened due to habitat loss. In an effort to promote conservation, tree frogs may be bred in captivity. A zoo acquired male and female tree frogs from two different populations. In the zoo, the tree frogs were able to successfully mate within their own population, but breeding attempts between the two populations were unsuccessful. Based on this information, which statement correctly describes the relationship between the two populations of tree frogs?

They are in the same genus but different species.

They are in the same species but different kingdoms.

They are in the same class but different phyla.

They are in the same family but different orders.

In a study of physical endurance, researchers observed significant increases in the heart rates and breathing rates of participants immediately after they engaged in strenuous exercise. Which statement best explains the increase in the heart rate and the breathing rate during exercise?

Body cells require increased oxygen as energy is expended.

The water concentration in the blood increases.

Muscle cells increase in temperature and require fluid to reduce the temperature.

An increase in muscle activity causes increases in glucose levels in red blood cells.

In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle. It was discovered that this particle requires a host cell to reproduce. Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?

A virus, because it requires a host cell to reproduce

A bacterium, because it is contagious

A fungus, because it infects livestock

A protist, because it is microscopic

The diagrams show a partial food web containing the Glyptapanteles wasp and the life cycle of this wasp. Based on the two diagrams, which list correctly identifies the relationships Glyptapanteles wasp larvae have with other organisms?

• Competition: stinkbugs • Parasitism: geometrid moths

• Competition: geometrid moths • Commensalism: stinkbugs • Mutualism: guava and eucalyptus trees

• Competition: stinkbugs and geometrid moths • Commensalism: guava and eucalyptus trees

• Parasitism: geometrid moths • Commensalism: stinkbugs • Mutualism: guava and eucalyptus trees

Male guppies found in areas without predators are more colorful than the ones found in locations with large predator populations. A population of adult guppies originating from an area with a large number of predators is transferred to a nearby area with few predators. Which of these is most likely to happen over a few generations?

There will be an increase in the number of colorful guppies.

The mortality rate of the guppies will increase.

Offspring will stop competing for resources.

There will be an increase in mutations in the offspring.

Exposure to the building material asbestos has been linked to certain types of cancers. Asbestos causes mutations in the p53 gene, which controls tumor suppression. Which statement best explains why people with cancer due to asbestos exposure do not pass the mutation on to their offspring?

The mutation occurred in somatic cells.

The mutation occurred in gametic cells.

Which role of protists has the most positive effect on maintaining the plant population in an ecosystem?

Protists decompose dead materials, returning nutrients to the soil.

Protists are a major food source for animals.

Protists produce approximately 75 percent of the oxygen on Earth.

Protists found in the gut of animals assist in digestion.

A table of four types of carbohydrates is shown. Which list correctly matches the functions to the types of carbohydrates?

Energy: glycogen and starch Structure: cellulose and chitin

Energy: cellulose and chitin Structure: glycogen and starch

Energy: chitin and glycogen Structure: cellulose and starch

Energy: cellulose and starch Structure: chitin and glycogen

Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is —

different due to independent assortment during meiosis

the same because it is created from the same DNA

the same because chromosomes are copied prior to meiosis

different due to DNA replication prior to mitosis

The ocean sunfish (Mola mola) is a large, flat fish that spends most of its time in deep water feeding mainly on jellyfish. Sunfish often have many species of copepods, small crustaceans, that bury their heads into the soft tissue of the sunfish. Sunfish will swim to the surface of the water and lie sideways, allowing seabirds to eat the copepods from their skin. Which list describes the types of relationships the sunfish has with other marine organisms?

Seabirds: mutualism Jellyfish: predation Copepods: parasitism

Seabirds: parasitism Jellyfish: commensalism Copepods: predation

Seabirds: predation Jellyfish: mutualism Copepods: commensalism

Seabirds: commensalism Jellyfish: parasitism Copepods: mutualism

Which statement accurately describes the energy needs for photosynthesis and cellular respiration?

Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.

Solar energy is needed for cellular respiration but not for photosynthesis.

Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis.

Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.

This cladogram shows the evolutionary relationships among some mammals based on homologous structures. Which statement is supported by this cladogram?

Hippopotamuses are more closely related to cows than to javelinas.

Toothed whales are more closely related to mouse deer than to hippopotamuses.

Javelinas and pigs are more closely related than baleen whales and toothed whales.

Cows and mouse deer are more closely related than javelinas and pigs.

Some species of millipedes will roll into a ball when threatened, while other species of millipedes can secrete noxious chemicals from their bodies. These adaptations allow the millipedes to —

avoid different types of predators

survive in different temperatures

conserve different amounts of energy

blend into different types of environments

The diagram shows how specialized body cells can develop. Which of the following best explains why cells that contain the same genetic material do not develop into the same types of cells?

Because internal or external stimuli can trigger the activation of specific genes in the DNA of cells

Because random mutations can occur in the DNA of cells during early embryonic development

Because messenger RNA is converted to transfer RNA when cell differentiation begins

Because chemical signals that are released during the cell cycle can result in the linking of similar genes

Transmembrane proteins span the width of cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane. Although these proteins have different specific functions, they all —

help the cell interact with its external environment

stop chemical reactions within the cell

synthesize molecules that signal other cells

remove large waste particles from the cytoplasm of the cell

Biology Review 1

Authored by Rosemary McLean

Biology

11th Grade

NGSS covered

Used 3+ times

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41 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than the native predators of rabbits.
Which statement describes what will most likely occur in the rabbit population due to the introduction of the predator?

The rabbits will mutate their genes and express genes that increase their speed.

Slower rabbits will develop stronger legs and pass this trait to their offspring.

Rabbits will mate and produce offspring with a different species that has faster runners.

Faster rabbits will survive and reproduce increasing the average speed of the rabbit population.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which answer choice best describes a community?

Praying mantises caring for their young

Three-spined sticklebacks living in estuaries

Different species of lizards occupying the same niche in a desert

Roosting mother bats recognizing their offspring

Tags

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1,3,5,and6only

3 and 5 only

2 and 4 only

3, 4, 7, and 8 only

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What would be the most likely effect of a wildfire that burned a large area of a forest?

More sugars and starches would be available for animals in the area.

The availability of fossil fuels for use by industries in the area would be reduced.

Less carbon dioxide would be removed from the atmosphere in the area by plants.

An increase in animal respiration would increase the release of carbon dioxide in the area.

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Students use a microscope to look for structures present in four different cells. The students placed an X for each structure that was viewed for each cell on the table shown. Which cell that was viewed is most likely a prokaryote?

Cell W

Cell X

Cell Y

Cell Z

Tags

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A dichotomous key for identifying fish is shown. Based on this key, which two fish have eyes located on either side of their head and are not spotted?

Glassy sweeper and squirrelfish

Glasseye snapper and spotted eagle ray

Spotted goatfish and bandtail puffer

Peacock flounder and glassy sweeper

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?

The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine.

The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.

The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of adenine is paired with thymine.

The mRNA strand is an exact copy of the DNA template strand; however, uracil instead of thymine is paired with adenine.

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Biology Review 1

A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than the native predators of rabbits.Which statement describes what will most likely occur in the rabbit population due to the introduction of the predator?

Which answer choice best describes a community?

What would be the most likely effect of a wildfire that burned a large area of a forest?

Students use a microscope to look for structures present in four different cells. The students placed an X for each structure that was viewed for each cell on the table shown. Which cell that was viewed is most likely a prokaryote?

A dichotomous key for identifying fish is shown. Based on this key, which two fish have eyes located on either side of their head and are not spotted?

Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?

The karyotype, or chromosomal profile, for humans is shown. A karyotype can be used to investigate genetic disorders. The chemical colchicine is used in the production of karyotypes. Colchicine prevents spindle fibers from forming during the cell cycle.

A team of students encounters an unknown organism in a field while conducting a biodiversity study. Some students think the organism is a plant, while others think it is a fungus.Which question should the students investigate to classify the organism correctly?

The diagram shows data on the evolution of horses.The data in the diagram is evidence that —

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Discover more resources for Biology

A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than the native predators of rabbits.
Which statement describes what will most likely occur in the rabbit population due to the introduction of the predator?

A team of students encounters an unknown organism in a field while conducting a biodiversity study. Some students think the organism is a plant, while others think it is a fungus.
Which question should the students investigate to classify the organism correctly?