Cells Grown in a Petri Dish Tend to Divide Until

question 35

Multiple Choice

Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. If cells are removed from the middle of the dish, the cells bordering the open space will begin dividing until they have filled the empty space. What does this experiment show?

• A) When cells come into contact with other cells, they stop growing.
• B) The controls on cell growth and division can be turned on and off.
• C) Cell division can be regulated by factors outside of the cell.
• D) Cells continue to grow as long as there is adequate space.
• E) All answers are valid and correct.

Examine the fiscal impact of immigration, including illegal immigration, on receiving countries.

Understand the comparison between immigration systems of different countries, especially focusing on skills-based immigration.

Analyze the economic theories and factors affecting the optimal quantity of immigrants, including marginal cost and marginal benefit analyses.

Recognize the impact of immigration on crime rates and prison rates among different populations.

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Definitions:

Manufacture Products

The process of converting raw materials, components, or parts into finished goods that meet a customer's expectations or specifications.

Instructional Approach

A method or strategy used in teaching to facilitate learning and improve students' understanding and skills.

Remediation

An approach to providing special instruction to students with disabilities, with the goal of eventually “catching them up” in the curriculum.

Curriculum

A structured set of learning outcomes or objectives. The curriculum reflects what school districts decide students need to know and the sequence in which the content will be learned. A complete curriculum includes numerous objectives covering different content areas.