The images show a cell in various phases of mitosis.

Which of these lists the phases in the order that they occur in mitosis?

• Z, X, W, Y

• X, W, Z, Y

• Z, Y, X. W

• X, Z, Y, W

Tags

TX.112.42.C.6.A.

Which two body systems must directly Interact for vertebrate organisms to exchange gases?

• Digestive system and Immune system

• Skeletal system and muscular system

• Circulatory system and respiratory system

• Excretory system and reproductive system

Tags

TX.112.42.C.12.A.

A DNA segment is shown In the diagram. Identify the three unknown components In the DNA molecule. Move ONE correct answer to each box.

a

b

c

Sugar Phosphate Backbone

Hydrogen Bond

Nitrogenous Base

Tags

TX.112.42.C.7.A.

As a fertilized egg divides, the cells differentiate because they —

• can clump together

• contain a lipid biiayer

• have specific genes activated

• metabolize sugars rapidly

Tags

TX.112.42.C.6.B.

Part of an important cellular process involving a DNA strand is modeled in the image.

What is the purpose of this cellular process?

• Producing more nucleotides for the DNA sequence

• Preserving genetic information for future generations

• Transcribing information In the DNA sequence for use by the cell

• Deleting the information in the sequence produced from the DNA template

Tags

TX.112.42.C.7.B.

The life cycle of a frog is illustrated In the diagram.

Which statement best explains how the cell cycle Is important to the life cycle of the frog?

• It prevents overproduction of frog offspring.

• It allows frogs to grow, develop, and reproduce.

• It enables frogs to produce tadpoles that are clones.

• It ensures the best adapted frogs survive and pass on traits to offspring.

Tags

TX.112.42.C.6.A.

Students use a microscope to look for structures present In four different cells. The students placed a check mark for each structure that was viewed for each cell on the table shown. Which cells that were viewed are most likely prokaryotes? Select TWO correct answers.

Tags

TX.112.42.C.5.B.

When the skin comes in contact with an irritant, receptors in the skin send signals to the spinal cord. The signal is then sent to the brain for processing, and the individual begins to scratch the affected area.

Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?

• Circulatory and excretory

• Digestive and muscular

• Integumentary and nervous

• Respiratory and lymphatic

Tags

TX.112.42.C.12.A.

When cells lose their ability to regulate the cell cycle, they can divide at an accelerated rate and form a mass of ceils. This mass of cells is referred to as-

• a tumor

• a gland

• an organ

• an embryo

Tags

TX.112.42.C.6.C.

Complete the table below by identifying the type of mutation that occurred.

Move ONE correct answer to each box. Not all answers will be used.

a

b

c

Deletion

Inversion

Insertion

Translocation

Substitution

Tags

TX.112.42.C.7.C.