BR Day 3 STAAR Review

Which model shows the correct conversion of molecules by the labeled cell structures?

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• 
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Tags

TEKS.BIO.11.A

The Edwards Aquifer in South Central Texas is home to several unique species, some of which are found nowhere else in the world. A food web with some aquifer species is shown.

An environmental change that harms which organism would cause the MOST instability in the aquifer ecosystem?

• Texas cave shrimp

• Seborgias

• Texas blind salamanders

• Bacteria

Tags

TEKS.BIO.13.B

The reproduction rates of citrus rust mites are shown.

Based on the information provided, which statement BEST describes the effect of temperature on the citrus rust mite?

• Temperature can affect the size of its egg.

• Temperature can influence the gender of its offspring.

• Temperature can affect its rate of reproductive success.

• Temperature can influence the availability of nutrients.

Tags

TEKS.BIO.10.B

Which statement BEST describes how viruses disrupt normal cellular processes to cause disease?

• Viruses use cell machinery to build products the virus needs.

• Viruses release large amounts of energy into the cell, causing increased growth rates.

• Viruses release antibiotics that destroy the cell membrane so more viral particles can be released.

• Viruses block gene expression and prevent host cell DNA replication.

Tags

TEKS.BIO.5.D

A DNA sequence is shown.

5′ A T C G C T A G 3′

Which strand represents the complementary DNA sequence?

• 5′ T A C G G A T C 3′

• 5′ A T C G C T A G 3′

• 3′ T A G C G A T C 5′

• 3′ G A T C G C T A 5′

Tags

TEKS.BIO.7.A

How do other body systems interact with the endocrine system to regulate body processes? Select TWO correct answers.

• The nervous system helps control the release of hormones throughout the body.

• The immune system helps prevent infection from hormones within the body.

• The digestive system helps convert hormones into proteins that are absorbed within the body.

• The circulatory system helps transport hormones throughout the body.

• The integumentary system helps provide oxygen to initiate hormone production throughout the body.

Tags

TEKS.BIO.12.A

There are only about 3,000 to 4,000 wild tigers left on Earth. Due to a decrease in habitat, wild tiger populations have become isolated. How is the genetic diversity of the species affected by decreasing tiger habitat?

Move the correct answer to each box. Each answer may be used more than once.

The genetic diversity of wild tiger populations is ​ (a)   , because the gene flow is ​ (b)   due to isolation from habitat loss.

• decreasing
• increasing
• constant

Tags

TEKS.BIO.10.D