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August 2022 Regents Questions
Test Description: Random question from the Regents exam from August 2022
Instructions: Answer all questions to get your test result.
1) Studying fossils provides evidence for evolution because fossils
A
always contain complete DNA sequences
B
take a long time to form
C
can show patterns of biological change over time
D
found in the same area are usually closely related to each other
2) Which statement best describes the interactions between the structures found within a single celled organism?
A
They carry out the same life process in order to maintain homeostasis
B
They allow the organism to maintain homeostasis.
C
They must act independently of each other and prevent homeostasis.
D
They prevent homeostasis from damaging the cell.
3) Sexually reproduced offspring have traits similar to their parents because they receive
A
some of the proteins from both parents
B
all of the genes present in both parent
C
some of the genes present in each parent
D
all of the proteins from each parent
4) Scientists have modified one gene in a plant so it now produces a natural form of rubber. The process that was most likely used to modify the plants' traits and increase their natural rubber production was
A
fertilizing the plants with key substances found in petroleum
B
genetic recombination during sexual reproduction
C
genetic engineering to alter a specifi c gene
D
selective breeding of two similar plant varietie
5) A response of a normally functioning immune system that can be harmful is
A
fighting off a bacterial infection
B
being infected by the flu virus
C
recognizing chemical signals
D
rejecting an organ transplant
6) Which molecules are normally found in single-celled organisms?
A
organic molecules, only
B
neither organic nor inorganic molecules
C
inorganic molecules, only
D
both organic and inorganic molecules
7) PCR, Polymerase Chain Reaction, is a method for carrying out DNA replication. In order to perform this technique, a scientist would need
A
enzymes, several types of simple sugars, and starch molecules
B
a DNA template, ATP, and 20 different amino acid subunits
C
a DNA template, enzymes, and subunits with A, G, T, and C bases
D
enzymes, specific receptor molecules, and several hormones
8) Killer whales are an endangered species. The decline in the whales’ numbers has been linked to poor nutrition, resulting in the inability to maintain a pregnancy. This risk to developing whale embryos is most likely a result of
A
an infection caused by the embryo’s exposure to a pathogen
B
toxins that are introduced into the mother from the embryo’s blood
C
an environmental factor not associated with the embryo’s genes
D
faults in the genes of the embryo itself
9) A biotechnology tool, known as CRISPR-Cas9, allows scientists to precisely edit genes. In order to edit genes, CRISPR-Cas9 must be able to
A
prevent cells from differentiating
B
alter the base sequence of DNA
C
block cell receptors from receiving signals
D
change the rate at which a cell uses ATP
10) By measuring the colors of light refl ected by different tree species in a forest, scientists can determine the amount of biodiversity present in different areas. Maintaining biodiversity is important because it
A
reduces the carrying capacity of a forest ecosystem
B
increases the number of predators that control the population size of prey
C
ensures the availability of a variety of genetic material
D
guarantees that all species within a forest ecosystem will survive
11) A student used a microscope to examine some cells. He observed strands located in the nuclei of these cells. These strands are responsible for coding different proteins and are known as
A
ribosomes
B
chloroplasts
C
mitochondria
D
chromosomes
12) Which sequence best represents the correct order of events in the formation of a sexually reproduced individual?
A
zygote → embryo → fetus → gamete
B
gametes → zygote → embryo → fetus
C
embryo → zygote → gamete → fetus
D
gametes → embryo → fetus → zygote
13) Direct harvesting occurs when
A
pine trees are cut from a forest for use as lumber
B
zebra mussels are accidentally imported to the Great Lakes
C
roots of plants continually take in water
D
corn is planted in a newly plowed fi eld
14) In New York State, it is common for farmers to plant large fields of one crop, such as the cornfield. A negative outcome of this practice is that
A
the stability of the ecosystem will be reduced
B
new predators will be introduced into the ecosystem
C
new species of insect-resistant corn will evolve
D
the corn will interbreed with weeds in the area
15) Which statement best describes the process of competition?
A
It allows nutrients in an ecosystem to move from herbivores to autotrophs.
B
It may be for abiotic or biotic resources
C
It is not affected by changes in the environment.
D
It always occurs between members of different species.
16) Changes in external temperatures often result in a person either sweating or shivering. These responses are one way
A
the body is able to maintain equilibrium through feedback mechanisms
B
to counteract feedback mechanisms that would otherwise be beneficial
C
to make the body release insulin to control blood circulation
D
skin and muscle cells are able to disrupt homeostasis
17) Which statement about the response of the body to pathogens is correct?
A
) Red blood cells engulf invaders and produce antibodies that attack invaders.
B
AIDS is a bacterial disease that strengthens the immune system
C
All allergic reactions are caused by an immune response to microorganisms.
D
Vaccinations may contain weakened microbes that stimulate the formation of antibodies.
18) Blood sugar levels increase after a meal and eventually return to normal. This constant correcting of blood sugar levels within the body is accomplished by
A
a feedback mechanism
B
an immune response
C
an allergic reaction
D
manipulating a gene
19) An electron micorsocoe is used to view things are extra small. Which is the smallest organims in the list that can only be viewed with an electron microscope
A
animal cells
B
bacteria
C
viruses
D
mitochondria
20) Smoking increases the risk of certain cancers of the mouth, esophagus, pancreas, kidneys, and uterus. This fi nding would be most reliable if it were based on
A
reading the information on cigarette cartons
B
cancer information published on social media sites
C
research done by scientists in many different countries
D
data collected from patients in one cancer research hospital
*select an answer for all questions
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