January 2023 Living Environment Regents Questions 31-46 Question Preview (ID: 61246)


Use Your Knowledge Of Living Environment To Answer All Questions In The Data Set. You May Need A Calculator To Answer Some Of The Questions. Good Luck. TEACHERS: click here for quick copy question ID numbers.

What is the most likely reason for the variation in the dissolved oxygen levels in the pond over the 24-hour period?


a) The increased light during the day decreases the oxygen produced by photosynthesis.
b) Photosynthesis produces more oxygen during the day than is used by respiration.
c) Respiration is reduced at night, so the oxygen produced by photosynthesis increases.
d) More producers are active at night, so the dissolved oxygen increases.

A large population of fish was introduced into the pond. During which part of the day would these fish affect the dissolved oxygen level in the pond?


a) both day and night, because respiration is occurring all the time in plants and animals
b) nighttime, because no respiration is occurring
c) daytime, because that is when plants are most active
d) neither day nor night, because only plants produce oxygen

An enzyme that rapidly breaks down a protein molecule in the stomach may break down that same protein much more slowly in the small intestine or mouth because
a) the enzyme is digested in those locations
b) no protein molecules are located in the small intestine or the mouth
c) the enzyme changes to fi t different molecules in different locations
d) the stomach may have a more suitable environment for the enzyme to work

Using the information on the graph, what is the most likely relationship between these two populations?


a) predator/prey
b) parasite/host
c) consumer/decomposer
d) pathogen/host

The best explanation for the decrease in the amount of energy available as one moves up the pyramid is that


a) producers require more energy than consumers to survive
b) decomposers recycle nutrients at each level
c) much of the energy at each level is lost as heat
d) animals use less energy than plants

Researchers have shown that environmental factors, such as exposure to toxins, can bring about epigenetic effects. This research suggests that an organism’s traits


a) are always determined by its DNA sequences
b) are only determined by environmental effects
c) can be influenced by environmental factors
d) alter half of the DNA they inherited from their parents

Based on the diagram, an explanation for why these identical twins are not identical in all traits is that


a) twin A can synthesize a protein resulting in a particular trait and twin B cannot
b) twin B can express a gene that twin A cannot
c) they have different DNA sequences for this particular gene
d) they were formed from the fertilization of two different eggs by two different sperm

Which statement represents an explanation for why it is necessary to remove the nucleus from the egg cell used during the cloning process?
a) If the egg cell nucleus remains in the cell, then there will be three copies of all cat chromosomes in the cloned cat.
b) If the egg cell nucleus is not removed, it will be impossible to predict the color of the cloned cat.
c) Removing the egg cell nucleus from the egg cell will cause the cell to become a body cell.
d) If the egg cell nucleus is not removed, then the cloned cat will always develop into a male.

If a donor cat was black and the surrogate mother was white, then the cloned cat would likely be
a) white, due to the color of the surrogate mother cat
b) white, due to mutations of the cloned cat
c) black, due to having the same DNA as the donor cat
d) black and white, due to mixing of the genes of the two cats during the cloning process

The biggest advantage that binary fission often has over sexual reproduction is that
a) there is more genetic variety in the resulting cells
b) the genetic material comes from two parents
c) the offspring inherit only favorable genes
d) a large number of identical offspring are produced

These discoveries suggest that
a) scientists use only fossil evidence to study flight
b) scientific understandings can change as new information becomes available
c) most birds avoid predators by jumping off the ground into the air
d) ancestral birds always climbed trees

In order to evaluate this conclusion and before they encourage Americans to drink more coffee, scientists in the United States should
a) conduct their own experiments to see if they arrive at the same conclusion
b) go to Colombia and see how the coffee is grown
c) provide coffee to people with Alzheimer’s and see if it cures their disease
d) construct a data table to test the hypothesis

Which claim is best supported by the data represented in the graphs?
a) The American toad population increased by approximately 57% in 1995 and 40% more in 2007.
b) The bullfrog population decreased every year between 1995 and 2005.
c) The spring peeper population is at about the same level in 2007 as it was in 1995.
d) All three amphibian populations were infected by a parasite in 2003.

A trade-off was made by the local population that has increased the number of turtles in the area. Which statement best describes the trade-off?
a) Placing barriers around the turtle nests made it easier for tourists to fi nd and photograph them.
b) The night patrols kept tourists from raiding the turtle nests and selling the eggs.
c) The shops, bars, and restaurants agreed to close early, so that the turtles could have a better chance to nest successfully.
d) Fishermen agreed to stay away from some fishing areas and catch less fish so the boats could bring tourists into the areas.

One factor that could result in an increase in the population size after year 10 would be
a) increased competition within the species
b) additional food became avail
c) predators of the species became more numerous
d) a new parasite negatively affected reproduction in the species

What is the most favorable temperature for the growth of the yellow perch population?


a) 10°C
b) 15°C
c) 20°C
d) 30°C

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 61246 in the upper right hand corner or click here.

TEACHERS / EDUCATORS
Log In | Sign Up / Register

Help / Support / FAQ




Gaming Links