August 2022 Regents Questions Question Preview (ID: 61768)


Random Question From The Regents Exam From August 2022. TEACHERS: click here for quick copy question ID numbers.

Studying fossils provides evidence for evolution because fossils
a) take a long time to form
b) can show patterns of biological change over time
c) always contain complete DNA sequences
d) found in the same area are usually closely related to each other

Which statement best describes the interactions between the structures found within a single celled organism?
a) They allow the organism to maintain homeostasis.
b) They prevent homeostasis from damaging the cell.
c) They must act independently of each other and prevent homeostasis.
d) They carry out the same life process in order to maintain homeostasis

Sexually reproduced offspring have traits similar to their parents because they receive
a) all of the proteins from each parent
b) some of the proteins from both parents
c) all of the genes present in both parent
d) some of the genes present in each parent

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) selective breeding of two similar plant varietie
b) genetic recombination during sexual reproduction
c) genetic engineering to alter a specifi c gene
d) fertilizing the plants with key substances found in petroleum

A response of a normally functioning immune system that can be harmful is
a) being infected by the flu virus
b) rejecting an organ transplant
c) recognizing chemical signals
d) fighting off a bacterial infection

Which molecules are normally found in single-celled organisms?
a) organic molecules, only
b) inorganic molecules, only
c) both organic and inorganic molecules
d) neither organic nor inorganic molecules

PCR, Polymerase Chain Reaction, is a method for carrying out DNA replication. In order to perform this technique, a scientist would need
a) a DNA template, ATP, and 20 different amino acid subunits
b) enzymes, several types of simple sugars, and starch molecules
c) a DNA template, enzymes, and subunits with A, G, T, and C bases
d) enzymes, specific receptor molecules, and several hormones

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) an infection caused by the embryo’s exposure to a pathogen
c) faults in the genes of the embryo itself
d) toxins that are introduced into the mother from the embryo’s blood

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) alter the base sequence of DNA
b) prevent cells from differentiating
c) block cell receptors from receiving signals
d) change the rate at which a cell uses ATP

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) guarantees that all species within a forest ecosystem will survive
c) increases the number of predators that control the population size of prey
d) ensures the availability of a variety of genetic material

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) chromosomes
b) mitochondria
c) ribosomes
d) chloroplasts

Which sequence best represents the correct order of events in the formation of a sexually reproduced individual?
a) embryo → zygote → gamete → fetus
b) zygote → embryo → fetus → gamete
c) gametes → embryo → fetus → zygote
d) gametes → zygote → embryo → fetus

Direct harvesting occurs when
a) pine trees are cut from a forest for use as lumber
b) corn is planted in a newly plowed fi eld
c) zebra mussels are accidentally imported to the Great Lakes
d) roots of plants continually take in water

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 corn will interbreed with weeds in the area
b) new predators will be introduced into the ecosystem
c) the stability of the ecosystem will be reduced
d) new species of insect-resistant corn will evolve

Which statement best describes the process of competition?
a) It may be for abiotic or biotic resources
b) It is not affected by changes in the environment.
c) It always occurs between members of different species.
d) It allows nutrients in an ecosystem to move from herbivores to autotrophs.

Changes in external temperatures often result in a person either sweating or shivering. These responses are one way
a) to counteract feedback mechanisms that would otherwise be beneficial
b) to make the body release insulin to control blood circulation
c) the body is able to maintain equilibrium through feedback mechanisms
d) skin and muscle cells are able to disrupt homeostasis

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) Vaccinations may contain weakened microbes that stimulate the formation of antibodies.
c) AIDS is a bacterial disease that strengthens the immune system
d) All allergic reactions are caused by an immune response to microorganisms.

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

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) bacteria
b) mitochondria
c) animal cells
d) viruses

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) data collected from patients in one cancer research hospital
b) research done by scientists in many different countries
c) reading the information on cigarette cartons
d) cancer information published on social media sites

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