The forest at Great Smoky Mountains National
Park is sick, infected by invasive bugs and
plants. Matt Moore, Kaleb Lique Naitove and
Emily Baird of the National Park Service are
some of the field medics trying to keep it alive.
…
The forest they walk through is mesmerizing. The
trees glow green in the Tennessee sun. There
are a lot of tree species in this forest, but the
one they’re looking to treat is an Eastern
hemlock, an evergreen conifer that ranges
from Canada to northern Mississippi. Hemlocks
make up a significant portion of a lot of forests
in the eastern U.S., but particularly so in Great
Smoky Mountains National Park.
…
‘A Tsunami Wave’ Of Adelgids
After about 20 minutes of hiking off-trail in
the park, Moore and company reach the tree
they’ve been looking for. It’s tall, but not
particularly big. You could wrap your arms
around its trunk and still clasp your hands. By
all outward appearances, it’s healthy.
It’s time for the crew to start helping the tree
by injecting it with pesticide. Moore drills holes
around the tree’s base and then Lique Naitove
and Baird attach tubing. A bicycle pump
connected to the tube system begins to fill
it and then the base of the tree with the red
pesticide.
The female wooly adelgid is miniscule, attaching herself to the hemlock’s needle after creating her ova sack, as
shown above.
To Tame A ‘Wave’ Of Invasive Bugs,
Park Service Introduces Predator
Beetles
by Nathan Rott
Instructional Segment 1 | Authentic Reading
1
Copyright © by Savvas Learning Company LLC. ,
It’s called a tree injection system. “We call
them IVs,” Webster says. “They’re out doing
a tree IV.”
It’s like a flu shot that will help the tree ward off
invasive bugs. Most of the trees Webster’s crew
treat just get sprayed with pesticides that have
the same effect. This one’s different because
it’s near a stream and the crew doesn’t want
pesticides getting in the water.
They can’t do it for all of the trees they
treat because there are just too many. The
vegetation crew here has treated more than
a quarter million trees in the Great Smoky
Mountains. The treated ones, like the one they
hiked to, are easy to spot because they look
healthy and are alive. The trees that weren’t
treated are probably dead “or they’re close
or on the way out very soon,” Webster says.
“Probably in the next 10 years.”
The reason for this die-off is the hemlock
woolly adelgid, which is native to Asia.
Scientists believe that the specific kind killing
the Eastern hemlock is from southern Japan.
Adelgids were first discovered in the U.S. in
the 1920s. They were transported overseas
by humans and continue to be spread with
human help, mostly through the purchasing,
selling and transporting of firewood. Today,
the hemlock woolly adelgid is established in
16 states, from Maine to Georgia.
The trees at Great Smoky Mountains National
Park have been infested with adelgids
for longer than a decade. With no natural
predators and no evolved defenses, the
adelgids swept through the hemlocks at the
park like “a tsunami wave,” Webster says.
Many of the park’s hemlocks died quickly;
others are dying more slowly.
…
A Predator-Prey Balance
The pesticide treatment that the park’s
vegetation crew uses doesn’t get rid of the
hemlock woolly adelgid. It protects the tree
that gets it and only lasts five to seven years.
“It’s a stopgap solution,” Webster says.
Because of that, the National Park Service and
scientists have been trying a longer-lasting
one: predator beetles. The hemlock woolly
adelgid, like most invasive species, thrives in
its new environment because it doesn’t have
any natural predators. To change that dynamic,
Great Smoky Mountains National Park has
brought in a few species of predator beetles
from Asia that they’re raising at insectaries, or
nurseries for bugs.
…
Predator beetles will never eradicate the
hemlock woolly adelgid. They’re here to stay.
The hope of the Park Service is that by creating
that balance between predator and prey and
by educating people to not move firewood
from one location to another, they can slow
the spread of the adelgid enough to give
the remaining Eastern hemlocks a chance to
survive and adapt.

READING COMPREHENSION
1. About when were the wooly adelgids introduced to the US and how are they spreading?
2. Describe how the introduction of a predator beetle from Asia might affect the wooly adelgid population.
3. Describe why the hemlock wooly adelgid was able to sweep through the hemlocks of Great Smoky Mountain National Park.
4. Why did the vegetation crew decide to treat the hemlock in the article with a tree IV, instead of using pesticides as they did for other hemlocks?

Answer:

Humans often use pesticides to destroy undesirable organisms that live in flower gardens, such as insects, weeds, or fungi. The use of such chemicals will reduce biodiversity. Humans also plant many of the same plants in gardens, which reduces biodiversity.

Humans perform different functions in the flower garden that alter the biotic elements of the garden, which include the usage of most of the pesticides that affect the soil and the microorganisms present in it, the planting of non native species, etc.

Human interference in the garden has many negative impacts, such as the introduction of non-native plant species to a garden, which can lead to the replacement of native plants, excess watering and fertilizing lead to an overgrowth of certain species and create an imbalance that changes the naturalness of the garden.

Hence, humans perform different functions in the flower garden that alter the biotic elements of the garden, which include the usage of most of the pesticides that affect the soil and the microorganisms present in it, the planting of non native species, etc.

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Answer:

In step 1, blood goes to the kidney for filtration. If excess sugar exists in the blood, the filtered substances will have more sugar than they do in a person who doesn’t have diabetes. In step 2, there is some reabsorption of sugar. But if there’s an unusually high amount to filter, some sugar will stay in the urine as it passes through the renal tubule to be excreted by the body. This symptom is concerning because it could stress the kidney, which could lead to kidney problems at a young age.

Explanation:

answer for plato, if your gonna use please change the wording, so it sounds like you typed it up instead of coping and paste.

The represented model shows the below mentioned steps:

Step 1: Blood goes to the kidney for the process of filtration and if excess sugar other than normal is present in the blood, the filtered substance will have much sugar as compare to the person who does not have diabetes.

Step 2: The model shows that there is some reabsorption of sugar but there is unusually more amount to filter, some sugar will remain in urine as it passes through the renal tubule to be excreted by the body.

This symptom is required to be concenred because it could create a stress on kidney, which will lead to kidney related problems at young age.

Diabetes is a disease in which the glucose present in the blood is not converted into glycogen due to less production of insulin hormone.

The main symptoms or early sign of diabetes are feeling hunger and fatigue, dry mouth and itchy skin as well as feeling thirsty other than normal.

Therefore,the represented model shows the below mentioned steps:

Step 1: Blood goes to the kidney for the process of filtration and if excess sugar other than normal is present in the blood, the filtered substance will have much sugar as compare to the person who does not have diabetes.

Step 2: The model shows that there is some reabsorption of sugar but there is unusually more amount to filter, some sugar will remain in urine as it passes through the renal tubule to be excreted by the body.

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Answer:

my answer Would be

Question 18- Ecological Niche

Question 19- True

Explanation:

i really hope this helps and if you get it wrong im super super sorry

Answer:

Explanation:

Osmosis. Osmosis is the diffusion of water through a semipermeable membrane down its concentration gradient. If a membrane is permeable to water, though not to a solute, water will equalize its own concentration by diffusing to the side of lower water concentration (and thus the side of higher solute concentration).

Answer: Spreading pesticides with planes

Explanation: The use of pesticides has allowed the world’s food production to expand greatly over the last century. However, the chemicals in pesticides can be dangerous to humans and animals.

Pesticides also add chemicals and poisons to the plants and crops, which, if taken by people, can result in fatal diseases, allergies, malnutrition, and other ailments, hence option B is correct.

A special chemical known as a pesticide is added to the agricultural field to protect the crops from harm caused by disease-carrying bugs.

While protecting the plants from pests that spread illness. Some farmers abuse pesticides without understanding the proper concentration to apply in their fields.

As a result, the population of humans and animals will experience more of the negative consequences of chemicals and poisons.

Therefore, spreading pesticides with planes to increase the food supply is dangerous to humans.

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Answer:

Explanation:Integral membrane proteins enable ions and large polar molecules to pass through the membrane by passive or active transport.

Answer:

proteins

Explanation:

larger molecules like glucose require a specific transport protein to facilitate their movement across the cell membrane.

Answer: The answer is c

Explanation:

DNA replication is semiconservative and at such, complementary base-pairing ensures that if adeinine is found on one strand, thymine is found on the other, and if guanine is found in one strand, cytosine is found on the other. complementary base pairing also helps to hold the double helix together by the formation of hydrogen bonds.

The correct answer is (B) TCG GTA CAT ATG

DNA is a double helix structure with two strands entwined together having complementary base pairs one purine and another for pyrimidine. It has all the required information for protein synthesis.

Adenine (A) and Thymine (T) are complementary base pairs and Cytosine (C) and Guanine (G) are also complementary base pairs.

So, option B is correct with complete complementary sequence of the question.

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Answer:Higher

Explanation: Osmosis is when a higher concentration of a substance moves to a lower concentration to achieve equilibrium

Answer:

Yes, organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process. The potential energy stored in molecules can be converted to chemical energy, which can ultimately be converted to kinetic energy, enabling an organism to move.

Answer:

a nuetron

Explanation:

Answer:

Biodiversity monitoring is important because it provides a basis for evaluating the integrity of ecosystems, their responses to disturbances, and the success of actions taken to conserve or recover biodiversity.

Monitoring keeps us informed, helps us to maintain our health, and alerts us to future problems that may arise. Monitoring ecosystems is similar to monitoring human health. ... Ecosystem monitoring means measuring physical, chemical, and/or biological variables over time to provide information on ecosystem change.

Explanation:

Answer:

The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.We breathe oxygen from the air into our lungs, and we breathe out carbon dioxide, which is formed in our body as a waste gas. Breathing is essential to life itself. Oxygen must pass from our lungs into our blood for our tissues and organs to work properly. We require Oxygen to live.

Explanation:

Answer:

Organelles

Explanation:

Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.

Cells contain small specialized structures called organelle that act just like organs in your body.

An organelle is a subcellular structure that, like an organ, has one or more specific jobs to do in the cell.

The nuclei, which store genetic information, mitochondria, which produce chemical energy, and ribosomes, which assemble proteins, are among the more important cell organelles.

The major organelles and cellular structures found within the cytoplasm include the nucleolus, nucleus, ribosome, vesicle, rough endoplasmic reticulum, Golgi apparatus, cytoskeleton, smooth endoplasmic reticulum, mitochondria, vacuole, cytosol, lysosome, and centriole.

The nuclei, which store genetic information, mitochondria, which produce chemical energy, and ribosomes, which assemble proteins, are among the more important cell organelles.

Thus, the answer is cell organelle as it acts like organs acting in the human body.

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Answer:

Im pretty sure its #1

Explanation:

Brainliest plz

Answer:

C  I think

Explanation:

Answer: technology

Explanation:

Answer:

its number 4

Explanation:

Answer:

Chloroplasts

Explanation:

Plant use the chloroplast to make food through photosynthesis.  Chloroplast produce chlorophyll green pigment.  Humans do not have chloroplasts.

Answer:

sunlight. , mushrooms and wind

The abiotic factors that shape the ecosystem are sunlight, mushrooms, and wind. The correct option is A.

An ecosystem is a place where all living and non-living organisms live together. An ecosystem contains all the living conditions that are necessary for living conditions.

Sunlight is a light source that comes from the sun. Sunlight is important for the earth to grow and live. Sun provides heat to carry the function and reaction of the body.

Mushrooms are living organisms that come under the fungi kingdom. They grow without sunlight, they are eatable and some are poisonous. They are very significant for an ecosystem.

The wind is moving air. The wind is a necessary component for the growth of an ecosystem.

Thus, the correct option is A. sunlight, mushrooms, and wind.

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Answer:

It depends on what substance. Most normal substances will not effect the cell as much as others

Explanation:

Answer:

Cell membranes act as barriers to most, but not all, molecules. Development of a cell membrane that could allow some materials to pass while constraining the movement of other molecules was a major step in the evolution of the cell.

Answer:fibrin

Explanation:

Answer:Cytokinesis occurs during mitosis

Explanation:

The cool relationship between cytokinesis and mitosis is that cytokinesis occurs during mitosis

Mitosis can be defined as a special type of cell division in which a single cell divides into two identical daughter cells

The major purpose of mitosis is for growth and to replacement of worn out tissues.

The stages of mitosis are:

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Answer:

1. A

2. C (guess)

3.  C (guess)

4. A

5. C (guess)

6. D

7. A (guess)

8. D

9. B

10. C

Explanation:

I only have the weather part so the rock questions I am guessing on them.

Answer:

Aerobic

Explanation:

Answer:

option a is the correct answer

Answer:

because the cell membrane is supposed to protect the insides by creating a layer outside of everything inside. if it was in the center the cell would not be protected

Explanation:

Answer:

because its need a cell phone

Answer:

the answer is a

Explanation:

because it faces to the outside

Answer:

A

Explanation:

the warmer climates help the plants.

there are many warm/hot climates without lots of rainfall so a is the answer

The sentence that best describes the theory is warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.

Colder climates promote higher biodiversity, reducing the competition among organisms for food. This supports stronger organisms that live longer. Warmer climates promote higher biodiversity because they tend to receive more rainfall.

This provides a source of water for more organisms. Colder climates promote higher biodiversity because they are usually larger in size. This provides space for more organisms. A Warmer climates that promote the higher biodiversity, allowing the plants to grow year-round. This supports more organisms that rely on plants.

Warmer climates use to promote higher biodiversity, has allowing plants to grow year round. The supports that more organisms that rely on the plants. Colder climates that promote the higher biodiversity the reducing the competition among the organisms for food.

Therefore, The sentence that best describes the theory is warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.

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Answer:

Radiation, chemical, and infectious agents are  mutagens or environmental factors that can cause a mutation

Explanation:

Mutagens are agents that can interfere with DNA and cause a mutation. They can cause chemical changes, structural changes or breakages that end up altering the sequence of the DNA. This results in mutations which can cause diseases such as cancer.

Answer:

Both

Explanation:enjoy

Answer:

The cell would lack genetic information

Explanation:

Answer:

The cell would lack genetic information

Explanation: