STAAR HS Biology

Last updated about 2 months ago

46 questions

Required

B.C.6A

Required

B.C.12C

Required

B.C.10C

Required

B.C.7E

Required

B.C.6F

Required

B.C.11B

Required

B.C.5A

Required

B.C.10B

Required

B.C.5C

Required

B.C.10A

Required

B.C.12D

Required

B.C.4C

Required

B.C.6E

Required

B.C.11A

Required

B.C.8B

Required

B.C.4B

Required

B.C.9A

Required

B.C.7A

Required

B.C.7B

Required

B.C.6D

Required

B.C.9B

Required

B.C.4A

Required

B.C.6C

Required

B.C.12A

Required

B.C.5A

Required

B.C.6F

Required

B.C.4B

Required

B.C.4C

Required

B.C.6A

Required

B.C.7F

Required

B.C.7D

Required

B.C.8C

Required

B.C.6G

Required

B.C.9C

Required

B.C.12A

Required

B.C.12B

Required

B.C.9A

Required

B.C.5B

Required

B.C.6B

Required

B.C.8B

Required

B.C.7E

STAAR HS Biology

STAAR HS Biology

Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle?

Select ONE correct answer.

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration gradient across the cells membrane.

What type of transport is used, AND why is this type of transport necessary?

Read the question carefully. Then enter your answers in the box provided.

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?

Select ONE correct answer.

Humans have thousands of genes that combine in different ways to help create unique individuals. Where is the genetic code primarily located?

The table shows the relationships of some organisms that live in Texas Hill Country habitat.

Based on the data in the table, which food chain depicts a correct flow of energy through the Texas Hill Country habitat?

A large part of Texas is made up of open areas covered in grasses. Together these areas form a grassland biome. There are multiple levels of organization that help form a biome. One of these levels is a community.

Which example BEST represents a community in the grassland biome?

The graph shows a change in a population of cacti.

Which claim is supported by the graph?

Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle?

Select ONE correct answer.

Scientists have reported that more than 95% of the factors that lead to some types of cancers are caused by random DNA-copying errors. During which phase of the cell cycle do these DNA-copying errors most likely occur?

The diagram shows changes in blood pressure over time.

Vasodilation and vasoconstriction occur because blood \{-}

A student claims that the influenza virus replicates int he air and then infects people. Which statement BEST describes the claim?

A DNA mutation results in a protein that is the same as the initial protein synthesized before the mutation. Which statement BEST explains this outcome?

Milk that is sold for human consumption is often pasteurized. During this process, the milk is heated to a high temperature.

Which statement describes the main benefit of this process?

A phylogenetic tree based on similar structures is shown.

Which statement is correct based on teh phylogenetic tree?

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration gradient across the cells membrane.

What type of transport is used, AND why is this type of transport necessary?

Read the question carefully. Then enter your answers in the box provided.

Actin is a protein that helps teh cell maintain its shape and polarity. It also plays a major role in muscle contraction. A table summarizing the cellular functions of different types of proteins is shown.

Based on this information, actin is most likely -

Which statement accurately compares eukaryotic cells and prokaryotic cells?

An mRNA sequence and an mRNA codon chart are shown.

What is the amino acid sequence that will be translated from the mRNA sequence?

Which pair of scenarios correctly identifies examples or characteristics of primary and secondary succession?

Cystic fibrosis is an autosomal recessive disorder in humans. What is the probability that an offspring will have cystic fibrosis if both parents are carriers of cystic fibrosis?

The diagram represents the movement of three different substances across a cell membrane.

Moving which of these substances across the cell membrane requires energy from ATP?

Which table correctly describes the lytic and lysogenic cycles?

The bar graph shows the average beak depth (distance form the top of the beak to the bottom) of a population of finches. The data were collected in 1976 and in 1978, after a drought occurred in 1977 in the area.

Which factor BEST describes the change in this population of finches?

Which table correctly identifies organelles found in plant cells and in animal cells?

Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment are shown.

Which statement best explains the result of test tube 3?

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?

Select ONE correct answer.

As unspecialized cells mature, what controls their development into specific cell types?

The classification information for several organisms is shown.

Which answer choice identifies the two organisms that are most closely related and why?

Part A
Which statement BEST describes how giant salvinia affects a Texas ecosystem?

Part B
Which evidence supports the answer to Part A?

Part A
Based on this information, which two body systems of MOST DIRECTLY regulating the digestive system?

Part B
Which statement BEST supports the answer to Part A?

STAAR HS Biology

STAAR HS Biology

Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle?Select ONE correct answer.

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration gradient across the cells membrane.What type of transport is used, AND why is this type of transport necessary?Read the question carefully. Then enter your answers in the box provided.

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?Select ONE correct answer.

Humans have thousands of genes that combine in different ways to help create unique individuals. Where is the genetic code primarily located?

The table shows the relationships of some organisms that live in Texas Hill Country habitat.Based on the data in the table, which food chain depicts a correct flow of energy through the Texas Hill Country habitat?

A large part of Texas is made up of open areas covered in grasses. Together these areas form a grassland biome. There are multiple levels of organization that help form a biome. One of these levels is a community.Which example BEST represents a community in the grassland biome?

The graph shows a change in a population of cacti.Which claim is supported by the graph?

Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle?Select ONE correct answer.

Scientists have reported that more than 95% of the factors that lead to some types of cancers are caused by random DNA-copying errors. During which phase of the cell cycle do these DNA-copying errors most likely occur?

The diagram shows changes in blood pressure over time. Vasodilation and vasoconstriction occur because blood \{-}

A student claims that the influenza virus replicates int he air and then infects people. Which statement BEST describes the claim?

A DNA mutation results in a protein that is the same as the initial protein synthesized before the mutation. Which statement BEST explains this outcome?

Milk that is sold for human consumption is often pasteurized. During this process, the milk is heated to a high temperature.Which statement describes the main benefit of this process?

A phylogenetic tree based on similar structures is shown.Which statement is correct based on teh phylogenetic tree?

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration gradient across the cells membrane.What type of transport is used, AND why is this type of transport necessary?Read the question carefully. Then enter your answers in the box provided.

Actin is a protein that helps teh cell maintain its shape and polarity. It also plays a major role in muscle contraction. A table summarizing the cellular functions of different types of proteins is shown.Based on this information, actin is most likely -

Which statement accurately compares eukaryotic cells and prokaryotic cells?

An mRNA sequence and an mRNA codon chart are shown. What is the amino acid sequence that will be translated from the mRNA sequence?

Which pair of scenarios correctly identifies examples or characteristics of primary and secondary succession?

A student observed a human cheek cell under a light microscope and made these observations:The chromatin is condensed.There is no visible nucleolus.The spindle fibers are visible.The nuclear membrane looks like it is disappearing.Which phase of the cell cycle is this student MOST LIKELY observing?

Cystic fibrosis is an autosomal recessive disorder in humans. What is the probability that an offspring will have cystic fibrosis if both parents are carriers of cystic fibrosis?

The diagram represents the movement of three different substances across a cell membrane.Moving which of these substances across the cell membrane requires energy from ATP?

Which table correctly describes the lytic and lysogenic cycles?

The bar graph shows the average beak depth (distance form the top of the beak to the bottom) of a population of finches. The data were collected in 1976 and in 1978, after a drought occurred in 1977 in the area.Which factor BEST describes the change in this population of finches?

Which table correctly identifies organelles found in plant cells and in animal cells?

Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment are shown.Which statement best explains the result of test tube 3?

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?Select ONE correct answer.

As unspecialized cells mature, what controls their development into specific cell types?

The classification information for several organisms is shown.Which answer choice identifies the two organisms that are most closely related and why?

Part AWhich statement BEST describes how giant salvinia affects a Texas ecosystem?

Part BWhich evidence supports the answer to Part A?

Part ABased on this information, which two body systems of MOST DIRECTLY regulating the digestive system?

Part BWhich statement BEST supports the answer to Part A?

Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle?

Select ONE correct answer.

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration gradient across the cells membrane.

What type of transport is used, AND why is this type of transport necessary?

Read the question carefully. Then enter your answers in the box provided.

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?

Select ONE correct answer.

The table shows the relationships of some organisms that live in Texas Hill Country habitat.

Based on the data in the table, which food chain depicts a correct flow of energy through the Texas Hill Country habitat?

A large part of Texas is made up of open areas covered in grasses. Together these areas form a grassland biome. There are multiple levels of organization that help form a biome. One of these levels is a community.

Which example BEST represents a community in the grassland biome?

The graph shows a change in a population of cacti.

Which claim is supported by the graph?

Dogs have 39 pairs of chromosomes in their somatic cells. In which part of the cell are these chromosomes replicated during the cell cycle?

Select ONE correct answer.

The diagram shows changes in blood pressure over time.

Vasodilation and vasoconstriction occur because blood \{-}

Milk that is sold for human consumption is often pasteurized. During this process, the milk is heated to a high temperature.

Which statement describes the main benefit of this process?

A phylogenetic tree based on similar structures is shown.

Which statement is correct based on teh phylogenetic tree?

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration gradient across the cells membrane.

What type of transport is used, AND why is this type of transport necessary?

Read the question carefully. Then enter your answers in the box provided.

Actin is a protein that helps teh cell maintain its shape and polarity. It also plays a major role in muscle contraction. A table summarizing the cellular functions of different types of proteins is shown.

Based on this information, actin is most likely -

An mRNA sequence and an mRNA codon chart are shown.

What is the amino acid sequence that will be translated from the mRNA sequence?

The diagram represents the movement of three different substances across a cell membrane.

Moving which of these substances across the cell membrane requires energy from ATP?

The bar graph shows the average beak depth (distance form the top of the beak to the bottom) of a population of finches. The data were collected in 1976 and in 1978, after a drought occurred in 1977 in the area.

Which factor BEST describes the change in this population of finches?

Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment are shown.

Which statement best explains the result of test tube 3?

A student athlete wants to choose a drink that will provide quick energy for track practice. Which portion of the label should provide the athlete with information about the amount of quick energy in the drink?

Select ONE correct answer.

The classification information for several organisms is shown.

Which answer choice identifies the two organisms that are most closely related and why?

Part A
Which statement BEST describes how giant salvinia affects a Texas ecosystem?

Part B
Which evidence supports the answer to Part A?

Part A
Based on this information, which two body systems of MOST DIRECTLY regulating the digestive system?

Part B
Which statement BEST supports the answer to Part A?