The major role of carbohydrates in the human diet is to

(1) form the membranes that surround mitochondria

(2) act as a catalyst for cellular reactions

(4) provide building blocks for amino acids

Throughout New York State, some farmers have switched from growing a variety of vegetable crops to growing a single crop, such as corn. Other farmers are concerned that such a practice will make it more likely that an entire crop could be lost to disease or infestation by an insect pest. This is a valid concern because this practice

(1) reduces the biodiversity of their fields

(2) increases the number of decomposers in their fields

(3) decreases the need to import food

(4) increases the number of invasive species

In the 1920s, two conflicting newspaper headlines called attention to a mysterious new illness. 1921–“Don’t breathe the air! Mysterious disease affecting thousands is caused by breathing the air in swamps.” 1922–“Don’t drink the water! Mysterious disease affecting thousands is caused by drinking the water in swamps.” Another series of headlines appeared in the 1940s and 50s. 1945–“New technology finds tiny worms on swamp vegetation.” 1950–“Tiny worms found in lungs of patients suffering from mysterious swamp disease.” 1952–“Mysterious disease known to be caused by worms given name Swamp Lung Disease.” Headlines such as these best illustrate the concept that

(1) scientific explanations are tentative and subject to change

(2) some newspapers are not honest and report incorrect information on purpose

(3) worms can enter the body many different ways

(4) worms found in swamps should not be used for fi shing

In the early 1600s, a scientist planted a willow tree that weighed 5 pounds in 200 pounds of dry soil. He placed it outside and watered it for 5 years. At the end of that time, he observed that the tree had gained 164 pounds 3 ounces, while the soil had lost just 2 ounces. From this, he concluded that plants gain weight from the water they take in. His conclusion was based on

(3) careful observation, measurements, and inferences from his data

(1) the input of scientists from many countries doing similar studies

(2) the application of advanced technologies to the study of a problem

(4) an extensive knowledge of the process of photosynthesis

Ecologists are concerned that the golden-winged warbler population is at a dangerously low level. One reason this could lead to extinction of this warbler is that

(2) there may not be enough diversity among the birds for the species to be able to survive an environmental change

(1) after a species becomes extinct, it won’t be able to carry out its role in the ecosystem

(3) extinction always occurs when populations begin to decrease in number

(4) an increase in biodiversity within a population often causes the population to be classifi ed as threatened or endangered

One primary function of the cell membrane is

(1) regulating the flow of simple sugars into or out of the cell

(2) synthesizing substances by breaking down cell organelles

(3) storing carbohydrates, water, and starches for future use

(4) digesting carbohydrates, fats, and protein

For several years now, there has been discussion of constructing a large oil pipeline across the United States. Which statement expresses a major concern many people are likely to have about the proposed pipeline?

(3) If this pipeline were to leak, the oil could contaminate soil, water, and wildlife.

(1) The pipeline will bring a large number of jobs to the area where it is being constructed.

(2) The oil pipeline will increase the amount of fi nite resources.

(4) The pipeline is a technological fix for ozone depletion.

The rings in the diagram below represent the annual growth of a tree approximately 20 years old. Tree trunks grow wider each year by continuous growth in a thin layer of cells just beneath the bark. Since one new layer is added each year, the number of rings in a tree can be used to tell its age. The thickness of the rings provides information about the environmental conditions in past years. By observing the annual rings in the diagram, one can infer that

(3) some years provide better conditions for growth than other years

(1) environmental conditions did not change over the last 20 years

(2) trees grow faster on the side that faces the Sun

(4) tree rings are not reliable because trees must be cut down to see them

Harmless Skin Virus Fights Acne …Acne is caused when hair follicles become blocked with an oily substance called sebum, which the body makes to stop the hair and skin from drying out. Normally harmless bacteria, such as Propionibacterium acnes, that live on the skin can then contaminate and infect the plugged follicles. Phages [a type of virus] appear to help counteract this. When the scientists sequenced the DNA coding of the phages, they discovered that, as well as sharing most of their genetic material, the viruses all had some key features in common. All carry a gene that makes a protein called endolysin – an enzyme thought to destroy bacteria by breaking down their cell walls. And unlike antibiotics, which kill many types of bacteria, including “good” ones that live in our gut, phages are programmed to target only specific bacteria… Source: BBC News September 25, 2012 This treatment for acne, using phages, is effective because phages

(2) eliminate bacteria by attacking specific cell structures

(1) produce antibodies to clean out clogged pores and hair follicles

(3) carry genes and infect follicles

(4) attack every known type of bacteria

Harmless Skin Virus Fights Acne …Acne is caused when hair follicles become blocked with an oily substance called sebum, which the body makes to stop the hair and skin from drying out. Normally harmless bacteria, such as Propionibacterium acnes, that live on the skin can then contaminate and infect the plugged follicles. Phages [a type of virus] appear to help counteract this. When the scientists sequenced the DNA coding of the phages, they discovered that, as well as sharing most of their genetic material, the viruses all had some key features in common. All carry a gene that makes a protein called endolysin – an enzyme thought to destroy bacteria by breaking down their cell walls. And unlike antibiotics, which kill many types of bacteria, including “good” ones that live in our gut, phages are programmed to target only specific bacteria… Source: BBC News September 25, 20 The typical response of the human body to an infection by bacteria is to

(4) produce white blood cells and antibodies

(1) stimulate the production of antigens

(2) decrease the number of enzymes in the blood

(3) ignore the organisms, unless they are pathogens

Two biological processes that occur in certain organelles are represented in the diagrams below Which statement is correct regarding the types of organisms able to carry out these processes?

(4) Both processes X and Y occur in green plants.

(1) Process X occurs in heterotrophs, but not in autotrophs.

(2) Process Y occurs in consumers, but not in producers.

(3) Both processes X and Y occur in all living things.

The diagram shows how ATP is used by some cell structures to perform various functions. The nucleus contains molecules of A, which

(3) store hereditary information

(4) regulate the pH of cytoplasm

June 2018 Living Environment Regents exam 21-43

Authored by Claire Cohen-Norris

Science

9th Grade

NGSS covered

Used 5+ times

June 2018 Living Environment Regents exam 21-43

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The Cornell University News Service reported, “The sugar maple is the most economically valuable tree in the eastern United States because of its high-priced lumber, syrup and tourist-attracting fall colors.” The effects of acid rain now threaten the survival of these trees. This threat is the result of a human activity that has

(1) introduced a foreign species by accident

(2) stabilized a forest ecosystem through

technology

(3) weakened an ecosystem through pollution

(4) weakened a species by direct harvesting

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-ESS3-4

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The human male reproductive system is adapted for the production of

(1) sperm and the delivery of these cells for internal fertilization

(2) gametes that transport food to the egg

(3) zygotes and the development of these cells into a fetus

(4) hormones that stimulate placenta formation in the male

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The diagram below represents an important biological technique scientists rely on to produce replacement hormones.
Which two processes are required for the technique to successfully produce hormones?

(1) replication of DNA in bacterial cells and cell division

(2) replication of DNA in bacterial cells and gamete formation

(3) meiosis and development

(4)

mitosis and fertilization

Tags

NGSS.MS-LS4-5

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The diagram below summarizes some of the steps in the development of humans.
All the genetic information needed for the organism to develop is first present at

(1)

(2)

(3) C

(4) D

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Five different living organisms are represented below.

Which statement about the organisms represented above is correct?

(1) All of the organisms are autotrophs.

(2) Only the flowering plant, green heron, and aquatic plant carry out photosynthesis.

(3) Only the frog and green heron can maintain homeostasis

(4) All of the organisms pass on traits through reproduction

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS1-4

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Mistletoe is an evergreen shrub that can produce most of its own food. Often, mistletoe can be found living on trees and taking water and nutrients away from the tissues of the trees.
The relationship between mistletoe and trees is an example of

(1) consumer/herbivore

(2) predator/prey

(3) scavenger/decomposer

(4) parasite/host

Tags

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Rabbits are not native to Australia. They were imported by European settlers. In 1936, the myxoma virus was introduced into Australia as a means of biological control to infect and reduce the rabbit population. This method of controlling the rabbit population was an attempt to

(1) stop the overpopulation of a native species

(2) stop the overproduction of an introduced species

(3) limit the food sources of the rabbit

(4) limit the number of rabbits brought into the country

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

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June 2018 Living Environment Regents exam 21-43

The human male reproductive system is adapted for the production of

The diagram below represents an important biological technique scientists rely on to produce replacement hormones.Which two processes are required for the technique to successfully produce hormones?

The diagram below summarizes some of the steps in the development of humans.All the genetic information needed for the organism to develop is first present at

Five different living organisms are represented below.Which statement about the organisms represented above is correct?

Mistletoe is an evergreen shrub that can produce most of its own food. Often, mistletoe can be found living on trees and taking water and nutrients away from the tissues of the trees.The relationship between mistletoe and trees is an example of

Rabbits are not native to Australia. They were imported by European settlers. In 1936, the myxoma virus was introduced into Australia as a means of biological control to infect and reduce the rabbit population. This method of controlling the rabbit population was an attempt to

The major role of carbohydrates in the human diet is to

The breathing rate, heart rate, and blood hormone levels of an individual would directly provide information about that individual’s

Access all questions and much more by creating a free account

Popular Resources on Wayground

Discover more resources for Science

The diagram below represents an important biological technique scientists rely on to produce replacement hormones.
Which two processes are required for the technique to successfully produce hormones?

The diagram below summarizes some of the steps in the development of humans.
All the genetic information needed for the organism to develop is first present at

Five different living organisms are represented below.

Which statement about the organisms represented above is correct?

Mistletoe is an evergreen shrub that can produce most of its own food. Often, mistletoe can be found living on trees and taking water and nutrients away from the tissues of the trees.
The relationship between mistletoe and trees is an example of