Friday Practice Review

Why do bulldog puppies from the same parents not look identical?

• Asexual cloning

• Genetic material from one parent

• Different genetic combinations from sexual reproduction

• Developed from the same fertilized egg

Sodium and lithium have similar chemical properties. What characteristic of these elements explains why they are chemically similar?

• Their atoms both have one valence electron.

• Their atoms both have more neutrons than protons.

• Their atoms have the same number of energy levels.

• Their atoms contain equal numbers of protons and electrons.

Which location around Green Peak is likely to experience the most erosion over time?

• Location W, because location W has the gentlest slope

• Location X, because location X is near the bottom of a slope

• Location Y, because location Y has the steepest slope

• Location Z, because location Z is the flattest slope

A student was given this partial dichotomous key and asked to determine in which of five orders the adult insect shown belongs. Based on the dichotomous key, in which order does the insect belong?

• Diptera

• Isoptera

• Ephemeroptera

• Zoraptera

Which statements best describe the charges on the particles in an atom model?

• Positive charge on particles X and Y, negative charge on particle Z

• Negative charge on particles X and Y, positive charge on particle Z

• Positive charge on either X or Y, negative charge on particle Z

• Negative charge on either X or Y, positive charge on particle Z

A photograph of a bird perched on a fence post is shown. Which description best identifies the action-reaction pair between the bird and the fence post?

• Action: The force of the bird on the wires / Reaction: The force of the wires on the fence post

• Action: The force of the wires on the fence post / Reaction: The force of the fence post on the bird

• Action: The force of the fence post on the bird / Reaction: The force of the bird on the wires

• Action: The force of the bird on the fence post / Reaction: The force of the fence post on the bird

Farmers can best reduce negative effects on the water quality of nearby streams and lakes by planting crops that —

• produce less oxygen

• produce less carbon dioxide

• need less fertilizer

• need less solar energy

Buffelgrass is an invasive species of grass from Africa that outcompetes native Texas grasses for space and water. Which long-term change to a Texas grassland would most likely occur due to the introduction of buffelgrass?

• The population of native grasses will increase.

• The population of native grasses will decrease.

• Buffelgrass offspring will develop traits like those of native grasses.

• Buffelgrass offspring will develop traits like those of other invasive species.

Two students record the distance they each traveled in 60 seconds in the data table shown. If the students continue at the same speed, which statement describes the total distance traveled after 90 seconds?

• Student 1 traveled 40 m, and student 2 traveled 20 m.

• Student 1 traveled 50 m, and student 2 traveled 30 m.

• Student 1 traveled 60 m, and student 2 traveled 30 m.

• Student 1 traveled 70 m, and student 2 traveled 25 m.

Maps of predicted weather conditions are shown for Day 1 and Day 2. Which answer choice best describes the weather at location X on Day 1 and Day 2?

• Day 1: warm and rainy; Day 2: cool with more rain

• Day 1: warm and windy; Day 2: cloudy and cold

• Day 1: clear and cool; Day 2: warm and rainy

• Day 1: cold and rainy; Day 2: clear and sunny