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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
take a long time to form
B
always contain complete DNA sequences
C
found in the same area are usually closely related to each other
D
can show patterns of biological change over time
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
some of the genes present in each parent
C
all of the genes present in both 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 engineering to alter a specifi c gene
C
genetic recombination during sexual reproduction
D
selective breeding of two similar plant varietie
5) A response of a normally functioning immune system that can be harmful is
A
rejecting an organ transplant
B
recognizing chemical signals
C
being infected by the flu virus
D
fighting off a bacterial infection
6) Which molecules are normally found in single-celled organisms?
A
both organic and inorganic molecules
B
organic molecules, only
C
neither organic nor inorganic molecules
D
inorganic molecules, only
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, specific receptor molecules, and several hormones
B
enzymes, several types of simple sugars, and starch molecules
C
a DNA template, ATP, and 20 different amino acid subunits
D
a DNA template, enzymes, and subunits with A, G, T, and C bases
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 environmental factor not associated with the embryo’s genes
B
toxins that are introduced into the mother from the embryo’s blood
C
an infection caused by the embryo’s exposure to a pathogen
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
change the rate at which a cell uses ATP
B
block cell receptors from receiving signals
C
prevent cells from differentiating
D
alter the base sequence of DNA
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
guarantees that all species within a forest ecosystem will survive
B
reduces the carrying capacity of a forest ecosystem
C
ensures the availability of a variety of genetic material
D
increases the number of predators that control the population size of prey
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
mitochondria
C
chromosomes
D
chloroplasts
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 → embryo → fetus → zygote
C
gametes → zygote → embryo → fetus
D
embryo → zygote → gamete → fetus
13) Direct harvesting occurs when
A
zebra mussels are accidentally imported to the Great Lakes
B
roots of plants continually take in water
C
pine trees are cut from a forest for use as lumber
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
new predators will be introduced into the ecosystem
B
the stability of the ecosystem will be reduced
C
the corn will interbreed with weeds in the area
D
new species of insect-resistant corn will evolve
15) Which statement best describes the process of competition?
A
It allows nutrients in an ecosystem to move from herbivores to autotrophs.
B
It always occurs between members of different species.
C
It may be for abiotic or biotic resources
D
It is not affected by changes in the environment.
16) Changes in external temperatures often result in a person either sweating or shivering. These responses are one way
A
to make the body release insulin to control blood circulation
B
the body is able to maintain equilibrium through feedback mechanisms
C
to counteract feedback mechanisms that would otherwise be beneficial
D
skin and muscle cells are able to disrupt homeostasis
17) Which statement about the response of the body to pathogens is correct?
A
All allergic reactions are caused by an immune response to microorganisms.
B
) Red blood cells engulf invaders and produce antibodies that attack invaders.
C
Vaccinations may contain weakened microbes that stimulate the formation of antibodies.
D
AIDS is a bacterial disease that strengthens the immune system
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
manipulating a gene
B
an allergic reaction
C
an immune response
D
a feedback mechanism
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
viruses
B
animal cells
C
bacteria
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
research done by scientists in many different countries
B
reading the information on cigarette cartons
C
cancer information published on social media sites
D
data collected from patients in one cancer research hospital
*select an answer for all questions
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