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Worksheets7th grade life science S1 Final review
Total questions: 20
Worksheet time: 12mins
A researcher wants to document the number of wolves migrating through Yellowstone park at a specific time of year. What are some limitations that the researcher might face?
They might count some wolves more than once.
They might not be able to document the entire area, so they might miss some wolves.
There might not be enough food for the wolves.
The wolves might have variations in size or color.
What is a hypothesis?
An experiment designed to answer the research question.
A conclusion based on gathered evidence.
An if..., then... statement that predicts the answer to the research question.
A research question based on observations.
What is a responding variable?
The thing a scientist measures during an experiment.
The thing a scientist changes during an experiment.
Something the scientist keeps the same during an experiment.
An unexpected change that occurs during an experiment.
Which of the following are true about scientific models? (more than one is correct)
They should be based on data in order to help make real predictions.
They are often safer than working with a natural phenomena.
They help reduce the number of variables in an environment.
They should be identical to the environment they are modeling.
Which terms describe data that is collected by counting individuals?
Continuous
Discrete
Qualitative
Quantitative
Where would you be most likely to find specialized tissues?
In an egg cell.
In a bacterium.
In a puppy.
In an amoeba.
What is true about cells that replicate by mitosis?
The daughter cells have identical DNA to the parent cell.
The daughter cells are genetically unique from the parent cell.
The daughter cells have different combinations of genes from the two parents.
4 daughter cells will be produced.
How might an organism adapt to changing colors in its environment?
An organism could find new food sources in its environment.
An organism's color could change to match the new colors in its environment.
An organism could find a new habitat from its original environment.
The organism would not change under this circumstance.
Which type of macromolecule is used for quick energy?
Carbohydrates
Lipids
Nucleic Acids
Proteins
What happens during photosynthesis?
Plants use carbon dioxide and water to make sugars and oxygen.
Plants use sugars and oxygen to make energy and carbon dioxide.
Plants use oxygen and carbon dioxide to make sugars and water.
Plants use water and sugars to make energy and oxygen.
Which of the following are true statements?
Cells come from other living cells.
Cells can appear from nothing.
Living things are made of cells.
Cells cannot replicate on their own without a host.
What does this part of a plant cell do?
It carries out photosynthesis.
It carries out cellular respiration.
It replicates DNA.
It makes proteins.
How do heterotrophs (other-feeders) get energy? (more than one is correct)
They eat other organisms.
They absorb energy from the sun.
They digest food in order to get nutrients from it.
They make sugars in special organelles in their cells.
Which of the following traits are NOT genetic?
A dog has brown fur.
A lizard eats insects.
A person has pierced ears.
A bat sleeps during the day.
What is true about organisms that reproduce asexually?
Two parents are required to produce offspring.
The offspring are genetically identical to the parent.
They can only reproduce once.
The offspring are genetically unique from the parents.
Which of the following is true about codominance?
The offspring will have a mixture of both traits.
The offspring will have a phenotype that blends the two traits.
Only one trait will be displayed by the organism.
Neither trait will be displayed by the organism.
How are genes and inherited traits related to each other?
Traits give the instructions for genes.
Traits and genes are not related.
Genes carry the instructions for traits.
Neither of them can be passed on to offspring.
Which of these is an example of selective breeding?
Farmers breed pigs to be larger.
Bears in Yosemite have 3 cubs.
Monarch butterflies lay eggs on milkweed plants.
Fish spawn in shallow water.
How can gene editing be used in a medical setting?
Bacteria can be destroyed by antibiotics.
A correct gene can be delivered to a patient with an incorrect copy of the gene.
Viruses can be treated with antiviral medications.
Chemotherapy can be used to shrink a tumor.
What are the three domains of life?
Bacteria
Eukarya
Archaea
Protista
