June 2022 Living Environment Regents Questions 1-10 Question Preview (ID: 59683)

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The human body fights an infection when a pathogen is detected. As a result, the pathogen stimulates the production of

a) bacteria

b) antibodies

c) vaccines

d) antibiotics

Which characteristic is common to most types of cancer?

a) production of low levels of ATP

b) inadequate levels of antigens

c) rapid and uncontrolled cell division

d) destruction of red blood cells

The primary function of estrogen and progesterone is to

a) regulate growth

b) control heart rate

c) monitor blood sugar levels

d) regulate reproductive cycles

A farmer stopped maintaining a field that was once used to grow crops. Over time, the field eventually became a forest. These changes best illustrate the process of

a) ecological succession

b) nutrient recycling

c) decomposition

d) competition

During a woman’s menstrual cycle, ovulation occurs and an egg is released. This process is important because it allows for

a) eggs to be produced by mitosis and be fertilized by a sperm

b) sperm to fertilize the egg in the uterus

c) multiple sperm to fertilize one egg, which then forms the placenta

d) the egg to leave the ovary and be fertilized by a sperm

Some salmon have been genetically modified to grow bigger at a faster rate than wild salmon. They are kept in fish-farming facilities and are not released into the wild. Which statement regarding genetically modified salmon is most likely true?

a) Wild salmon reproduce sexually, while genetically modified salmon reproduce asexually.

b) Wild salmon have an altered protein sequence, but genetically modified salmon do not.

c) Genetically modified salmon and wild salmon would have different DNA sequences.

d) Genetically modified salmon and wild salmon would have identical DNA sequences.

The formation of the many kinds of body cells that make up an embryo begins with

a) chemical changes in the cell membranes

b) the clumping together of proteins within the cells

c) specific genes being activated

d) the rapid metabolism of sugar molecules

On a hot day, dogs sweat through their paw pads and pant, which helps keep them cool. Both the sweating and panting are

a) due to a loss of oxygen

b) a failure of cell communication

c) due to a lack of adaptation to the environment

d) a response to a stimulus

When the carrying capacity for a species in a habitat is reached, the population of the species levels off. This slowing of the rate of growth is most likely due to

a) limited resources

b) renewable energy

c) an increase in decomposers

d) a lack of competition

Level X most likely represents

a) molecules

b) organelles

c) tissues

d) ribosomes

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