Biology Savvas Semester UPDATED Actual
Questions and CORRECT Answers
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? - CORRECT
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? - CORRECT ANSWER- ✔✔developing a hypothesis
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. - CORRECT ANSWER- ✔✔The beans in the control group have a white spot on
day 2
The beans in the control group feel soft on day 2
The beans of both groups appear equally green and healthy on day 1.
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. - CORRECT
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? - CORRECT 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? - CORRECT 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. -
CORRECT ANSWER- ✔✔Peer review allows other scientists the chance to try and replicate
the experimental results
Peer review can lead to new ideas and further study.
Peer review helps check for mistakes, bias, or fraud in a set of experimental work.
Society expects scientists to follow ethical practices and meet many ethical standards. Which
is an example of one of those ethical standards? - CORRECT ANSWER- ✔✔Analyze data
that was truly observed, and not data that was expected or desired.
Scientists are often faced with ethical questions, or questions of right and wrong. Which of
the following situations involve the need for an ethical decision or resolution?
I. Mairead wants to include a hypothesis in her report, and she asks if she must give credit to
the scientist who first proposed it.
II. Aiden is planning and experiment on gerbils, and he asks how large the cages should be.
III. Paula is developing a new technique for mining fossil fuels, and she asks if the technique
must avoid polluting the experiment. - CORRECT ANSWER- ✔✔I.,II.,and III.
which task would be best accomplished in a field of engineering? - CORRECT ANSWER-
✔✔designing and building an artificial heart for the human circulatory system
Fill in the paragraph - CORRECT ANSWER- ✔✔Living things are similar in many ways.
Genes made of DNA (A) carry the directions for inheritance, and offspring usually resemble
their parents. With asexual reproduction (G) , offspring have the same traits as their parents.
With sexual reproduction (F) , offspring differ from their parents in some ways, Living
organisms use energy and materials to grow ,develop, and reproduce. These life processes
involve a set of chemical reactions called metabolism (B) . Organisms have means of
, detecting a change in their environment and responding to this stimulus (D) . Most organisms
require that their internal environments remain in a fairly constant range, and so they
maintain homeostasis (E) . The ability of a group of organisms to change, or evolve (C) over
time helps populations survive in an ever-changing environment.
No single characteristic alone can't describe a living thing, but all living things share certain
characteristics. Which is NOT one of these characteristics? - CORRECT ANSWER-
✔✔ability to move from place to place
DeShawn is studying homeostasis and circulation. To organize his findings, he constructs two
models: one to represent a non-smoker, and one that includes attributes typically found in a
smoker. By comparing the two models, which relationship of cause and effect can DeShawn
BEST explain? - CORRECT ANSWER- ✔✔Smoking damages the function of the
circulatory systems
Look at the pictures. Which crosscutting concept of biology do these phenomena BEST
represent? - CORRECT ANSWER- ✔✔Patterns
Scientists use the metric system when gathering data and performing experiments, Which of
the following statements about the metric system are true? Select three correct answers. -
CORRECT ANSWER- ✔✔The units of the metric system are scaled on multiples of 10,
making mathematical calculations easier to perform.
The Units of the metric system include kilograms for mass, meters for length, liters for
volume, and degrees Celsius for temperature.
Scientists often retest others' experiments, so a common system of measurement is essential.
Fill in the paragraph - CORRECT ANSWER- ✔✔There are many fields of biology, and in
some branches, biologists are concerned with tiny molecules (D) , while others study whole
planets (C). Biologists who study how the activities of all living organisms affect both the
atmosphere ad climate are working in the field of global ecology (E). Researchers who seek
to replace damaged genes that cause inherited diseases or to genetically engineer bacteria are
studying biotechnology (F). Some biologists work to combine the latest genetic information
with computer technology to organize all living things into a single universal " Tree of All
Life" (B). Scientists concerned with HIV, bird flu, and drug-resistant bacteria, and other
pathogens are researching the ecology and evolution (A) of infectious diseases. Scientists
who look at the entire sets of DNA code contained in a wide range of organisms are studying
genomics (G).
