Biology Science Skills Worksheets with Answer Key by Holt Science.

The image shows the cover of a workbook titled "Biology Science Skills Worksheets with Answer Key" by Holt Science, published by Holt, Rinehart and Winston. The task appears to involve solving a problem related to biology or science skills, but since no specific problem is provided in the image, I will outline a general approach to solving problems from such a workbook.

General Approach to Solving Problems in Biology Science Skills Worksheets

1. Understand the Problem:
- Read the problem carefully to identify what is being asked.
- Identify key terms, variables, and concepts involved.
- Determine if there are any diagrams, charts, or data provided that need to be analyzed.

2. Review Relevant Concepts:
- Refer to your textbook or notes to refresh your understanding of the relevant biological concepts.
- Ensure you understand the scientific principles or formulas that might apply to the problem.

3. Plan Your Solution:
- Break the problem into smaller, manageable parts.
- Decide on the steps needed to solve the problem.
- Consider whether calculations, logical reasoning, or critical thinking is required.

4. Execute the Plan:
- Perform the necessary calculations or analysis.
- Use diagrams, charts, or other visual aids if they help clarify the solution.
- Write down your steps clearly so that you can review them later.

5. Check Your Work:
- Verify that your solution makes sense in the context of the problem.
- Double-check calculations and ensure all steps are logically consistent.
- Compare your answer with the provided answer key (if available).

6. Reflect on the Solution:
- Consider whether there are alternative approaches to solving the problem.
- Think about what you learned from solving the problem and how it relates to broader biological concepts.

Example Problem and Solution (Hypothetical)

#### Problem:
A biologist is studying a population of rabbits in a forest. Initially, there are 50 rabbits. The population grows at a rate of 10% per year. How many rabbits will there be after 3 years?

#### Solution:

1. Understand the Problem:
- Initial population (\( P_0 \)) = 50 rabbits.
- Growth rate (\( r \)) = 10% per year = 0.10.
- Time (\( t \)) = 3 years.
- We need to find the population after 3 years (\( P_t \)).

2. Review Relevant Concepts:
- The formula for exponential growth is:
\[
P_t = P_0 \times (1 + r)^t
\]
- Here, \( P_t \) is the population at time \( t \), \( P_0 \) is the initial population, \( r \) is the growth rate, and \( t \) is the time in years.

3. Plan Your Solution:
- Substitute the given values into the exponential growth formula.
- Calculate step by step.

4. Execute the Plan:
\[
P_t = 50 \times (1 + 0.10)^3
\]
\[
P_t = 50 \times (1.10)^3
\]
\[
(1.10)^3 = 1.10 \times 1.10 \times 1.10 = 1.331
\]
\[
P_t = 50 \times 1.331 = 66.55
\]

5. Check Your Work:
- The calculation is correct, and the result is reasonable given the growth rate.
- Since we cannot have a fraction of a rabbit, we round to the nearest whole number.

6. Final Answer:
\[
\boxed{67}
\]

Conclusion

If you provide a specific problem from the workbook, I can guide you through solving it step by step using a similar approach. For now, this general framework should help you tackle most problems in the "Biology Science Skills Worksheets." If you have a particular question or problem, feel free to share it!