2017 STAAR Biology

Last updated about 4 years ago

54 questions

B.C.2.f

B.C.4A

B.C.2G

B.C.6E

B.C.12A

B.C.10B

B.C.2G

B.C.2.f

B.C.6F

B.C.2G

B.C.5A

B.C.2G

B.C.9C

B.C.4C

B.C.7F

B.C.6A

B.C.2G

B.C.9A

B.C.2G

B.C.7B

B.C.10A

B.C.12E

B.C.2G

B.C.4B

B.C.3F

B.C.6B

B.C.5C

B.C.11A

B.C.2G

B.C.3F

B.C.7E

B.C.3C

B.C.9C

B.C.2G

B.C.7A

B.C.12C

B.C.2G

B.C.2.f

B.C.8B

B.C.3D

B.C.10B

B.C.5B

B.C.6F

B.C.10A

B.C.5A

B.C.2C

B.C.10C

B.C.2G

B.C.6E

B.C.12A

B.C.2G

B.C.10B

B.C.2G

B.C.6G

B.C.4B

B.C.8A

B.C.9A

B.C.2H

B.C.6C

B.C.11B

B.C.2G

B.C.4C

B.C.2.f

B.C.7E

B.C.9B

B.C.2G

B.C.7A

B.C.10A

B.C.2G

B.C.6A

B.C.12C

B.C.2G

B.C.8B

B.C.6D

2017 STAAR Biology

2017 STAAR Biology

The picture shows a student using a microscope to study a prepared slide of a single-celled organism.

A single-celled organism can be classified as a prokaryote based on the absence of —

Different types of mutations can occur in DNA. The diagram represents a type of mutation.

Which statement describes the mutation in the diagram?

Albinism is an autosomal recessive condition. Which circle graph shows the genotype probability when an albino female mates with a male that is heterozygous for the albinism trait?

Part of the cell cycle is shown in this simplified model.

This part of the cell cycle is best described as the process that —

The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. These CD4 T cells are one of many kinds of white blood cells that are an important part of the immune system.

The most common danger related to the destruction of CD4 T cells is —

Common baboons live on the savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop. Which of these is a likely outcome of movement by young males?

Differences in traits such as hair texture are determined by differences in —

Students were given a list of seven elements and asked to identify the four elements that are most abundant in biomolecules. Which table correctly identifies the four most-abundant elements in biomolecules?

The graph shows the number of taxa of reptiles whose fossilized tracks have been found.

Which statement is best supported by these data?

This diagram demonstrates why the ocean is a large carbon sink.

An increase in the amount of carbon dioxide in the atmosphere can cause atmospheric temperatures to increase. Which statement explains how this could affect the ocean as a carbon sink?

Which molecule synthesized by plants is a major source of energy for cellular processes in both plants and animals?

From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant develops. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop?

The diagram demonstrates a feedback process involving antidiuretic hormone (ADH). ADH increases the permeability of parts of the nephrons of the kidney, resulting in less water in the urine.

This feedback loop is likely to be activated when —

The energy pyramid below shows the energy made available by producers.

Based on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the secondary consumer level in this pyramid?

Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key.

Which tree does the unknown leaf come from?

A student reads this advertisement for a product containing a plant micronutrient that can be added to soil.

Based on this information, the student can conclude that boron is absorbed by plant roots from soil and then —

The surface of the stomach is lined with epithelial cells called surface mucous cells. These cells produce a thick mucus that coats the epithelium on the inside surface of the stomach. What is the purpose of the mucous coating?

A student researching bacteria concluded a report with the claim in the box.

Which statement correctly addresses the validity of the claim?

Which of the following is an example of the endocrine system directly interacting with the nervous system?

Roads are often built through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction through a forest most likely affect the ecosystem?

People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?

The diagram represents a theory about cells.

Which theory is represented in this diagram?

Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals?

Which of these is the direct result of an error in the transcription of a DNA nucleotide?

Four common relationships between organisms are listed in the box.

Which statements best describe these relationships?

Which diagram demonstrates how crossing-over contributes to genetic variety during meiosis?

The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environment.

What conditions cause the contractile vacuole to fill with water?

2017 STAAR Biology

2017 STAAR Biology

The picture shows a student using a microscope to study a prepared slide of a single-celled organism.A single-celled organism can be classified as a prokaryote based on the absence of —

Different types of mutations can occur in DNA. The diagram represents a type of mutation.Which statement describes the mutation in the diagram?

Albinism is an autosomal recessive condition. Which circle graph shows the genotype probability when an albino female mates with a male that is heterozygous for the albinism trait?

Part of the cell cycle is shown in this simplified model.This part of the cell cycle is best described as the process that —

The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. These CD4 T cells are one of many kinds of white blood cells that are an important part of the immune system.The most common danger related to the destruction of CD4 T cells is —

Common baboons live on the savanna in breeding groups called troops. While females tend to stay with the troop, younger or less dominant males may leave to join a neighboring troop. Which of these is a likely outcome of movement by young males?

Differences in traits such as hair texture are determined by differences in —

Students were given a list of seven elements and asked to identify the four elements that are most abundant in biomolecules. Which table correctly identifies the four most-abundant elements in biomolecules?

The graph shows the number of taxa of reptiles whose fossilized tracks have been found.Which statement is best supported by these data?

This diagram demonstrates why the ocean is a large carbon sink.An increase in the amount of carbon dioxide in the atmosphere can cause atmospheric temperatures to increase. Which statement explains how this could affect the ocean as a carbon sink?

Which molecule synthesized by plants is a major source of energy for cellular processes in both plants and animals?

From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant develops. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop?

The diagram demonstrates a feedback process involving antidiuretic hormone (ADH). ADH increases the permeability of parts of the nephrons of the kidney, resulting in less water in the urine.This feedback loop is likely to be activated when —

The energy pyramid below shows the energy made available by producers.Based on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the secondary consumer level in this pyramid?

Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key.Which tree does the unknown leaf come from?

A student reads this advertisement for a product containing a plant micronutrient that can be added to soil.Based on this information, the student can conclude that boron is absorbed by plant roots from soil and then —

The surface of the stomach is lined with epithelial cells called surface mucous cells. These cells produce a thick mucus that coats the epithelium on the inside surface of the stomach. What is the purpose of the mucous coating?

A student researching bacteria concluded a report with the claim in the box.Which statement correctly addresses the validity of the claim?

Which of the following is an example of the endocrine system directly interacting with the nervous system?

Roads are often built through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction through a forest most likely affect the ecosystem?

People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?

The diagram represents a theory about cells.Which theory is represented in this diagram?

Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals?

Which of these is the direct result of an error in the transcription of a DNA nucleotide?

Four common relationships between organisms are listed in the box.Which statements best describe these relationships?

Which diagram demonstrates how crossing-over contributes to genetic variety during meiosis?

The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environment.What conditions cause the contractile vacuole to fill with water?

The picture shows a student using a microscope to study a prepared slide of a single-celled organism.

A single-celled organism can be classified as a prokaryote based on the absence of —

Different types of mutations can occur in DNA. The diagram represents a type of mutation.

Which statement describes the mutation in the diagram?

Part of the cell cycle is shown in this simplified model.

This part of the cell cycle is best described as the process that —

The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. These CD4 T cells are one of many kinds of white blood cells that are an important part of the immune system.

The most common danger related to the destruction of CD4 T cells is —

The graph shows the number of taxa of reptiles whose fossilized tracks have been found.

Which statement is best supported by these data?

This diagram demonstrates why the ocean is a large carbon sink.

An increase in the amount of carbon dioxide in the atmosphere can cause atmospheric temperatures to increase. Which statement explains how this could affect the ocean as a carbon sink?

The diagram demonstrates a feedback process involving antidiuretic hormone (ADH). ADH increases the permeability of parts of the nephrons of the kidney, resulting in less water in the urine.

This feedback loop is likely to be activated when —

The energy pyramid below shows the energy made available by producers.

Based on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the secondary consumer level in this pyramid?

Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key.

Which tree does the unknown leaf come from?

A student reads this advertisement for a product containing a plant micronutrient that can be added to soil.

Based on this information, the student can conclude that boron is absorbed by plant roots from soil and then —

A student researching bacteria concluded a report with the claim in the box.

Which statement correctly addresses the validity of the claim?

The diagram represents a theory about cells.

Which theory is represented in this diagram?

Four common relationships between organisms are listed in the box.

Which statements best describe these relationships?

The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environment.

What conditions cause the contractile vacuole to fill with water?