August 2022 Living Environment Regents Questions 21-30 Question Preview (ID: 59964)

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When cells such as the skin cells shown reproduce abnormally, it could be a sign of

a) an immune response

b) dynamic equilibrium

c) cancerous cell growth

d) a cellular adaptation

Which graph below best represents the relationship between the relative number of nuclei, genes, and chromosomes in a typical human cell?

a) 1

b) 2

c) 3

d) 4

Which statement is true about the biological process shown?

a) This is a short-term process resulting from sudden changes.

b) This process cannot be altered by humans and other organisms.

c) If the hardwood trees are destroyed, the altered ecosystem cannot recover.

d) The shrubs modify the environment, making it more suitable for the softwood trees.

These new skin cells form as a result of

a) meiotic cell division

b) sexual reproduction

c) mitotic cell division

d) gene recombination

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

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.

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 dynamic equilibrium

d) skin and muscle cells are able to disrupt homeostasis

Humans are able to positively or negatively affect their environment in many ways. Which statement accurately describes one of these possible effects?

a) 1

b) 2

c) 3

d) 4

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.

The process of differentiation is best described as the

a) production of a genetically identical copy of an organism

b) change in shape of a protein due to high temperatures

c) process by which cells specialize and develop into a specifi c type of cell

d) process in which genes are made and transferred into other organisms

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