NY Released Regents Exam - Living Environment Jun 2021(v202)
Quiz by NYSED Living Environment
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- Q1
The respiratory system of an elephant functions in a similar way to which organelle in a single-celled organism?
vacuole
chloroplast
nucleus
cell membrane
30sS4-K1.1.1 - Q2
The carrying capacity of an environment may be decreased by
replacing lost minerals
preventing deforestation
maintaining biodiversity
removing dead organisms
30sS4-K6.6.1 - Q3
The offspring of a species of bird known as the European roller possess an effective defense mechanism. When they sense a threat by predators, the young birds vomit and cover themselves with a foul-smelling liquid.
Which two systems work together to alert the young birds of danger and help produce the vomit?
circulatory and immune
reproductive and muscular
nervous and digestive
respiratory and excretory
30sS4-K1.1.2 - Q4
A decrease in the biodiversity of an ecosystem usually leads to
the elimination of material cycling
an increase in dynamic equilibrium
an increase in predator and prey populations
a decrease in stability
30sS4-K6.6.2 - Q5
Down syndrome occurs when an individual has an extra copy of chromosome 21. This additional genetic material alters development and results in Down syndrome. This genetic abnormality is an example of
fertilization
differentiation
a substitution
a mutation
30sS4-K5.5.2 - Q6
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the
ribosomes
mitochondria
vacuoles
nuclei
30sS4-K1.1.2 - Q7
Which human activity best represents a method for recycling nutrients?
mixing lawn clippings with vegetable waste to produce compost used to fertilize gardens
raking and bagging lawn clippings in plastic bags for disposal in landfills
clearing a forested area to provide open land for cattle
collecting lawn and garden wastes for burning
30sS4-K2.2.1 - Q8
Rabbit populations vary in size over time. An increase in which factor would likely prevent the rabbit population from steadily increasing?
food
mates
prey
predators
30sS4-K6.6.1 - Q9
The diagrams below represent two reproductive processes used by different organisms.
When compared to organisms that utilize process A, organisms that utilize process B would most likely produce offspring with
a greater variety of genetic combinations
more genetic combinations
more DNA within each nucleus
fewer genetic differences
30sS4-K2.2.1 - Q10
A weightlifter has spent years building his muscular strength. His newborn daughter has normal strength for a baby. Which statement best explains this situation?
The weightlifter’s wife probably did not lift weights. Both parents must have this trait before the baby can inherit it.
The weightlifter’s highly developed muscles resulted from exercise. A characteristic such as this will not be inherited.
A daughter inherits most of her traits from her mother. The daughter’s muscles are unlikely to resemble her father’s.
Babies do not have strong muscles. The daughter’s muscles will be unusually strong in a few more months.
30sS4-K2.2.1 - Q11
When it is disturbed, the bombardier beetle is able to produce and release a hot spray of irritating chemicals from the end of its body, as shown in the photo below. As a result, most animals that have experienced this defense avoid the beetles in the future.
The beetle’s defense mechanism has developed as a result of
ecological succession over hundreds of years
competition with its predators
the need for an effective protection against its enemies
natural selection over many generations
30sS4-K3.3.1 - Q12
Rejection of a newly transplanted organ is caused by
the immune system reacting to the presence of the organ
development of cancerous cells in the organ
inheritance of genetic disorders from infected individuals
antibiotics that stimulate the immune system to attack the organ
30sS4-K5.5.2 - Q13
One of the largest and oldest organisms on Earth is located in Fishlake National Forest in Utah. Pando is an 80,000-year-old grove of aspen trees that covers 100 acres. Although it looks like a forest, DNA analysis of several of the “trees” has confirmed it is really just one huge organism. Therefore, the “trees” must have been reproduced
sexually and have genetic variability
asexually and have genetic variability
asexually and are genetically identical
sexually and are genetically identical
30sS4-K4.4.1 - Q1430sS4-K2.2.1
- Q15
Many female mammals, such as dogs, give birth to litters consisting of multiple offspring. All of the characteristics described below are reproductive adaptations that female dogs have for giving birth and caring for several offspring at once, except
ovaries capable of releasing many gametes at one time for fertilization
a pancreas that produces excess insulin to trigger the release of eggs
a specialized structure for internal development of several young
several pairs of mammary glands that provide milk for their pups
30sS4-K4.4.1
