Gr8 Unit 2 Mid-Unit Assessment

Which instrument was used in the 18th and 19th centuries and helped scientists develop the cell theory?

What is common to all cells?

Living organisms can best be distinguished from nonliving things by determining the presence or absence of:

Base your answer to the following question on the diagram below, which represents a specimen observed by a student using the low power objective (100x) of a compound light microscope.

Imagine you were trying to determine whether this object, viewed under the microscope, is living or non living. List one characteristic you would look for to make this determination.

Which activity might lead to damage of a microscope and specimen?

The ability to grow in size is characteristic of living organisms. Although an icicle may grow in size over time, it is considered nonliving because there is:

Base your answer to question 7 on the graph below and on your knowledge of biology. The graph shows the carbon dioxide (CO2) concentration of the atmosphere since the year 1000.

What was the approximate change in CO2 level from the year 1000 to the year 2000?

Base your answers to question 8 on the information below and on your knowledge of biology.

"A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants."

Which tool is correctly paired with a procedure that could be used during this experiment?

Base your answers to question 9 on the information below and on your knowledge of biology.

"A student designed an experiment to determine if air temperature had an effect on the rate of photosynthesis in corn plants."

The independent variable in this experiment is the:

Which list contains only abiotic conditions that might be found in a pond ecosystem?