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PRETEST_Science_GRADE 7
Quiz by Angelica Bayron
Track each student's skills and progress in your Mastery dashboards
Which of the following BEST describes the function of a microscope?
Who was the scientist who examined bacteria, blood cells, yeasts, and protozoans using the microscope that he invented?
Which part of the microscope should be manipulated if the Low Power (LPO) needs to be adjusted?
What is the function of a light source in the compound light microscope?
Which of the following statement is the correct way of preparing a specimen?
Which part of the microscope contains a magnifying lens where you look through to observe the specimen?
Which part will you adjust while viewing under HPO if the cut-out small letter “e” you are observing is not clear?
If a microscope has a 4x ocular lens and a 10x objective, what is the total magnification of theobject being viewed?
Which of the following shows the letter “e” as seen under the microscope?
Why is it necessary for the specimen to be thinly sliced so it can be observed under the microscope?
Which sequence of biological levels of organization is correctly arranged from most complex to simplest?
Which level of organization in an organism is the basic unit of life?
An organ system of a complex form of organism is made up of different organs that perform a specific function. Which of the following organs DOES NOT match its function?
Which of the following statements correctly describe the organ system of plants?
Which of the following examples describes a population?
Which of the following pairs is NOT correctly matched?
Refer to the Venn diagram. Which structures are common to both plants and animals?
Refer to the Venn Diagram. Which parts of the cell are unique to species of plants?
Refer to the diagram. Which part of this cell serves as the brain that controls the other parts of the cell?
Refer to the diagram below. Which part of this cell provides strength and support to the entire cell?
Which part of both animal and plant cells is called “the powerhouse of the cell” for it generates and provides energy to the cell to perform its activities?
Which of the following processes involves replication of the cell’s DNA through cellular division?
Which of the following statements is NOT TRUE about the cell?
Why is the cell considered the basic structural and functional unit of life?
I. Cells are found in all living organisms.
II. Cells determine the age of an organism.
III. Cells perform various tasks to sustain life.
IV Cells are reproduced from a pre-existing cell.
What type of asexual reproduction occurs in bacteria?
How many parents are required for asexual reproduction?
A farmer wants to propagate a good variety of a crop in a way that maintains all its desirable traits. Which of the following methods should be used?
A sperm cell unites with an egg cell to form a zygote. Which process is taking place?
The following are abiotic factors except _____________.
A healthy ecosystem is made up of a balanced and adequate number of different organisms. What will happen if too much abiotic component like sunlight is present in an ecosystem?
Refer to the picture. What abiotic factors in the ecosystem are needed by the plants to grow and make foods?
How can the components of the ecosystem sustain ecological processes?
A mutualistic relationship is one where both organisms benefit. Which of the following is an example of a mutualistic relationship?
What do you call a symbiotic relationship where one organism benefits while the other is neither benefited nor harmed?
Which organism would most likely have a predator-prey relationship?
A flea in the fur of mouse benefits at the mouse’s expense. This type of relationship is known as_____________ .
What abiotic components are needed for marine life to survive?
Temperature is an abiotic factor, how will it affect the aquatic ecosystem if the temperature continues to increase?
Which of the following is a natural phenomenon that can affect the abiotic components?
Illegal mining is prohibited by the government because it can damage the ecosystem and influence changes that occur in the abiotic components. Which of this abiotic components will mostly be affected by illegal mining?
