BIOLOGY SAVVAS SEMESTER ACTUAL
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ According to Darwin's theory of natural selection, individuals who survive
are the ones best adapted for their environment. Their survival is due to the.
Answer: Possession of inherited adaptions that maximize fitness
◍ Modern sea star larvae resemble some primitive vertebrate larvae. This
similarity may suggest that primitive vertebrates.
Answer: Share a common ancestor with sea stars
◍ In which of the following can a change be directly observed?.
Answer: Phenotypes
◍ The geographic isolation of two populations of a species tends to increase
differences between their gene pools because it.
Answer: prevents interbreeding between the populations
◍ A single species that has evolved into several different forms that live in
different ways has undergone.
Answer: Adaptive radiation
◍ Modern scientists continue the tradition of the Greek philosopher in their
efforts to understand the world around them. They know that the universe
consists of objects, organisms, and processes that interact in many different
ways, and proper scientific methods can help this understanding. Which two
statements state the goals of science?.
Answer: A goal of science is to generate testable explanations for events in
the natural world. A goal of science is to make useful predictions about
natural events , and to understand patterns in nature by using explanations
supported by data
,◍ Scientific methodology is a well-established method used to study biological
systems and conduct experiments leading to valid results. In the methods of
science, which step generally comes before the other three steps?.
Answer: developing a hypothesis
◍ A plant evolves a high level of poison to defend itself against insects. Soon
an insect that prefers to eat this plant evolves an enzyme that breaks down
the poison. This is an example of.
Answer: Coevolution
◍ Kari is testing the hypothesis that plants rely on photosynthesis to grow, She
conducts an experiment in which she observes the sprouting and growth of
bean seeds. The beans are raised either in sunlight or darkness. She records
her observations in a data table. Which statements from Kari's records
convey qualitative data, and not quantitative data? Choose all that apply..
Answer: The beans in the control group have a white spot on day 2The
beans in the control group feel soft on day 2The beans of both groups appear
equally green and healthy on day 1.
◍ Sexual reproduction contributes to genetic diversity by allowing.
Answer: Genes from two parents to be mixed and remixed before being
passed to offspring
◍ The famous scientist Albert Einstein sometimes used "thought experiments"
such as imagining himself chasing a beam of light or riding an elevator in
free fall. These thought experiments, which would not be possible to
conduct physically, helped him challenge current scientific thinking and
develop his theories of gravity and of special relativity. Write the words or
phrases from the box on the lines to complete the paragraph..
Answer: In actual physical experiments, scientists must select equipment (E)
carefully and avoid errors (A) in data collection and analysis. There is
variation in nature, so the larger the sample size (D) , the more accurately
researchers can determine dissimilarities within each group, and analyze
variances between experimental groups and controls. When interpreting
data, researchers use statistical analysis (F) to decide if an experimental
, treatment is significantly different from the control group. When drawing
conclusions, the hypothesis (B) being tested may either be supported, or
refuted and revised (C) to be tested again.
◍ When, if ever, can a scientific theory becomes a scientific law?.
Answer: never, under no circumstances
◍ A scientist is designing an experiment on tomato plants. Which is the best
example of hypothesis that the experiment could test?.
Answer: Increasing the amount of sunlight that a tomato plant receives will
increase its height.
◍ Francesca, a PhD candidate, conducts extensive research on aluminum
corrosion. When finished, she will submit her research data and conclusions
in a report to a scientific journal for peer review. What are three benefits of
peer review? Select three answer choices..
Answer: Peer review allows other scientists the chance to try and replicate
the experimental resultsPeer review can lead to new ideas and further
study.Peer review helps check for mistakes, bias, or fraud in a set of
experimental work.
◍ What would be a direct consequence of the disappearance of nitrogen-fixing
prokaryotes?.
Answer: Organisms would not be able to get the nutrients they need to make
proteins
◍ Phytoplankton are only found at the surface of ocean waters because.
Answer: They require sunlight to carry out photosynthesis
◍ An important role of fungi in an ecosystem is.
Answer: Breaking down dead organisms
◍ Society expects scientists to follow ethical practices and meet many ethical
standards. Which is an example of one of those ethical standards?.
Answer: Analyze data that was truly observed, and not data that was
expected or desired.
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ According to Darwin's theory of natural selection, individuals who survive
are the ones best adapted for their environment. Their survival is due to the.
Answer: Possession of inherited adaptions that maximize fitness
◍ Modern sea star larvae resemble some primitive vertebrate larvae. This
similarity may suggest that primitive vertebrates.
Answer: Share a common ancestor with sea stars
◍ In which of the following can a change be directly observed?.
Answer: Phenotypes
◍ The geographic isolation of two populations of a species tends to increase
differences between their gene pools because it.
Answer: prevents interbreeding between the populations
◍ A single species that has evolved into several different forms that live in
different ways has undergone.
Answer: Adaptive radiation
◍ Modern scientists continue the tradition of the Greek philosopher in their
efforts to understand the world around them. They know that the universe
consists of objects, organisms, and processes that interact in many different
ways, and proper scientific methods can help this understanding. Which two
statements state the goals of science?.
Answer: A goal of science is to generate testable explanations for events in
the natural world. A goal of science is to make useful predictions about
natural events , and to understand patterns in nature by using explanations
supported by data
,◍ Scientific methodology is a well-established method used to study biological
systems and conduct experiments leading to valid results. In the methods of
science, which step generally comes before the other three steps?.
Answer: developing a hypothesis
◍ A plant evolves a high level of poison to defend itself against insects. Soon
an insect that prefers to eat this plant evolves an enzyme that breaks down
the poison. This is an example of.
Answer: Coevolution
◍ Kari is testing the hypothesis that plants rely on photosynthesis to grow, She
conducts an experiment in which she observes the sprouting and growth of
bean seeds. The beans are raised either in sunlight or darkness. She records
her observations in a data table. Which statements from Kari's records
convey qualitative data, and not quantitative data? Choose all that apply..
Answer: The beans in the control group have a white spot on day 2The
beans in the control group feel soft on day 2The beans of both groups appear
equally green and healthy on day 1.
◍ Sexual reproduction contributes to genetic diversity by allowing.
Answer: Genes from two parents to be mixed and remixed before being
passed to offspring
◍ The famous scientist Albert Einstein sometimes used "thought experiments"
such as imagining himself chasing a beam of light or riding an elevator in
free fall. These thought experiments, which would not be possible to
conduct physically, helped him challenge current scientific thinking and
develop his theories of gravity and of special relativity. Write the words or
phrases from the box on the lines to complete the paragraph..
Answer: In actual physical experiments, scientists must select equipment (E)
carefully and avoid errors (A) in data collection and analysis. There is
variation in nature, so the larger the sample size (D) , the more accurately
researchers can determine dissimilarities within each group, and analyze
variances between experimental groups and controls. When interpreting
data, researchers use statistical analysis (F) to decide if an experimental
, treatment is significantly different from the control group. When drawing
conclusions, the hypothesis (B) being tested may either be supported, or
refuted and revised (C) to be tested again.
◍ When, if ever, can a scientific theory becomes a scientific law?.
Answer: never, under no circumstances
◍ A scientist is designing an experiment on tomato plants. Which is the best
example of hypothesis that the experiment could test?.
Answer: Increasing the amount of sunlight that a tomato plant receives will
increase its height.
◍ Francesca, a PhD candidate, conducts extensive research on aluminum
corrosion. When finished, she will submit her research data and conclusions
in a report to a scientific journal for peer review. What are three benefits of
peer review? Select three answer choices..
Answer: Peer review allows other scientists the chance to try and replicate
the experimental resultsPeer review can lead to new ideas and further
study.Peer review helps check for mistakes, bias, or fraud in a set of
experimental work.
◍ What would be a direct consequence of the disappearance of nitrogen-fixing
prokaryotes?.
Answer: Organisms would not be able to get the nutrients they need to make
proteins
◍ Phytoplankton are only found at the surface of ocean waters because.
Answer: They require sunlight to carry out photosynthesis
◍ An important role of fungi in an ecosystem is.
Answer: Breaking down dead organisms
◍ Society expects scientists to follow ethical practices and meet many ethical
standards. Which is an example of one of those ethical standards?.
Answer: Analyze data that was truly observed, and not data that was
expected or desired.
