Dreissena polymorpha is:
1. A nonnative species
2. A keystone species
3. An indicator species

Answers

Answer 1

Answer:

A indicator species

A non-native species


Related Questions

1. Summarize the author’s argument and supporting evidence. 2. Why was Portugal successful in Asia? Be sure to amplify the author’s argument as you explain your answer.

Answers

Answer:

1.In the text, the author argues how the Portugal Empire came to be. He informs the reader of how the time that Portugal came into the picture was beneficial to them. It was favorable for them because no one noticed them due to the other countries being too busy doing their things such as fighting wars, fighting for power, controlling their people, and more.

Another reason is that they made allies and exploited local rivalries. The author tells of two competitors that were pretty clear allies and rivals.  These two cases were the conflict between Melinde with Mombasa and Cochin with Calicut on the Malabar Coast.

The third reason is that by them being so close to the ocean, it gave them a great advantage. The arrival of Portugal got looked over by countries more onshore because they were more concerned about what was happening on the landmass. China closed its trading ports, so they didn't want to bother with Portugal. Finally, Asia ignored them until Portugal was too established.

2.Portugal was triumphant in Asia because they were the first European country to launch the age of exploration. It was Portuguese sailors who first sailed from Europe to Asia by circumnavigating the African Continent. They used new technologies and new ideas to find Asia, and they continued bringing new ideas to the table once they settled.

Portugal was also successful because it had the economic and political rationale to establish colonies in places that were deemed desirable for their general potential for economic development and trade. We can see this still today because former Portuguese colonies like Macao and Goa are among the most developed areas in all of Asia.

Hope This Helps!!!!

Portuguese seafarers were the first to circumnavigate Africa on their way from Europe to Asia.

What are the reason for Portugal successful in Asia?

They formed allies and took advantage of regional rivalries, which is another explanation.

The author describes two adversaries who were quite obvious partners and foes. These two trials were disputes on the Malabar Coast between Melinde and Mombasa and Cochin and Calicut.

The fact that they were so near the ocean is what made them so advantageous. Countries closer to the coast ignored Portugal's entry because they were more focused on what was happening on the continent.

China decided not to worry Portugal after closing its trading ports. Asia eventually disregarded them until Portugal became too powerful.

Therefore, Portugal established its empire. He explains to the reader how it benefited them when Portugal entered the picture.

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[tex]8x^2 +y^2=10[/tex]
find dy/dx

Answers

Answer:

See Explanation

Explanation:

[tex]8 {x}^{2} + {y}^{2} = 10 \\ \\ {y}^{2} = 10 - 8 {x}^{2} \\ \\ differentiating \: w \: r \: t \: x \: on \: both \: sides \\ \\ 2y \frac{dy}{dx} = \frac{d}{dx} (10 - 8 {x}^{2} ) \\ \\ 2y \frac{dy}{dx} = 0 - 8 \times 2 {x} \\ \\ 2y \frac{dy}{dx} = - 16{x} \\ \\ \frac{dy}{dx} = \frac{ - 16x}{2y} \\ \\ \frac{dy}{dx} = - \frac{8x}{y} [/tex]

whats your name if it is bob dan or joe give me a respoonse

Answers

Answer:

My name is richard :)

Explanation:

I know a couple of Joes though

help pls! this is ap world history work btw!
(i have the sand roads. i have more work too but for right now this would be rlly helpful!)

•how/why did your trade route emerge? what was the driving force?

Answers

I don’t quite understand

Why are a variety of instruments needed to measure change in the climate system? A) A different type of instrument is needed for each different climate.
B) The climate system involves a number of different factors that are measured differently.
C) Climate is determined over a number of years, rather than a short period of time.
D) Change in climate requires the results of the different instruments measuring the same factor compared.
E) Different areas have developed different instruments to measure climate change.

Answers

Answer:

More than one instrument is needed to measure change in the climate system because its complexity. The climate system involves the interaction of the atmosphere, land masses, and bodies of water.

Explanation:

Answer:

(B) The climate system involves a number of different factors that are measured differently.

Explanation:

edg 2020

I WILL GIVE BRAINLIEST TO ANYONE WHO CAN ANSWER THIS!!!!
The polynomial [tex]p\left(x\right)=-2x^3+3x+4[/tex] is given. Which conclusion is valid if[tex]p\left(1\right)=5[/tex]

A.(x-1) is a factor of p(x)

B. The remainder of p(x) divided by (x-1) is 5

C. The remainder of p(x) divided by (x-5) is 1

D. (x-5) is a factor of p(x)

Answers

Answer:

The remainder of p(x) divided by (x-1) is 5.

Explanation:

The table shows transactions from five different bank accounts. Fill in the missing numbers

Answers

Acc 2 : 80

Acc 3 : -25

Acc 4 : -40

PLS HELP What is the most helpful element in the periodic table of elements, and what, in your opinion, is the best element?

Answers

Answer:

Hydrogen is the most helpful element in the periodic table.

In my opinion, oxygen is the best element.

Plz mark brainleist:)

How are AP Exams scored?
A. 25% is based on your multiple-choice score, and 75% on your
essay score.
B. 50% is based on your multiple-choice score, and 50% on your
essay score.
C. 60% is based on your multiple-choice score, and 40% on your
essay score.
D. 45% is based on your multiple-choice score, and 55% on your
essay score.
E. 40% is based on your multiple-choice score, and 60% on your
essay score

Answers

D- 45% is based on your multiple-choice score and 55% on your essay score

(It has 55 multiple-choice questions, worth 45% of your score, and three essays, worth 55% of your score.)

following questions:
1. What is the name of the town that "tie-dye" built?
2. What is shibori and how is it done?
3. How many shibori designs are currently done?
4. How long does it take to become a professional level artisan at this
technique?

Answers

Answer:

1. The name of the town "tie-dye" built is called Arimatsu

I only know that one. Sorry!

Explanation:

How dependable is psychological information in popular media?

Answers

Explanation:

Information in the mass media varies greatly in quality and accuracy and should be approachedwith skepticism and caution.It is essential to critically evaluate information from popular sources(or from any source, for that matter) to separate facts from fallacies. Problems in media reportsare often related to biased or unreliable sources of information, uncontrolled observation.

In psychology, objectivity is something that is not influenced by emotions or feeling therefore it is based on facts.

What is information?

Information in the mass media varies greatly in quality and accuracy and should be approached with skepticism and caution.It is essential to critically evaluate information from popular sources or from any source, for that matter to separate facts from fallacies.

Problems in media reportsare often related to biased or unreliable sources of information, uncontrolled observation.objective psychology would refer to an approach that is based on quantitative and measurable behaviorism.

In the early 20th century, it was based on subjective information. This was the opposite of objective where personal perspectives, feelings and opinions were used in decision making.

Therefore, In psychology, objectivity is something that is not influenced by emotions or feeling therefore it is based on facts.

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Which of the following is true about drug therapy?


a. Drugs treat only the symptoms of a disorder.

b. Symptoms usually do not reappear after the patient stops taking the medication.

c. Drug therapy often removes the causes of the disorder.

d. Most pills used in drug therapy are placebos.

Answers

The answer is A.
Hope this helps :)

The option that is true about the use of drug therapy is that drugs treat only the symptoms of a disorder.

What is a drug?

A drug is a chemical substance that is used to handle certain abnormalities in the body. There are several types and classes of drugs that exist.

The option that is true about the use of drug therapy is that drugs treat only the symptoms of a disorder.

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wat to do when ur frogs run

Answers

Answer:

get some crickets or sum and lure them in

Cry about it it’ll help lol

What does Cassius mean when he says that Caesar does not have the falling sickness but that the ones that have the falling sickness are himself, Brutus, and Casca? How does this prove to be persuasive? (lines: 265-267)
HINT: Think about the emphasized image.

Answers

Answer:

When he says, 'but you (Brutus) and I, | And honest Casca, we have the falling sickness' he does not mean it literally, but symbolically. Cassius means that he, Brutus, and Casca as senators have the 'falling sickness' because as Caesar gains power, they lose it. They are falling in the ranks of political importance.

Explanation:

hope this helps! :)

The probability of an event occurring is 1/2. The total number of outcomes is 10. How many desired outcomes resulted in this probability? Use the equation for reference.
Probability =

2
5
10
20

Answers

5 5 is half of 10 or 1/2

Answer:

5

Explanation:

i took the quiz

The introduction of tobacco during the early 1600s in the Virginia colony led to the

A) devastating period of disease called the starving time
B) use of indentured servants, and later enslaved Africans, for agricultural labor
C) concentration of settlers and farms into small village communities
D) emergence of peaceful and cooperative relationships with neighboring American Indian people
E) development of a diversified economy

If anyone could help me that would be greatly appreciated!!!

Answers

Answer: B) use of indentured servants, and later enslaved Africans, for agricultural labor

Explanation:

This answer fits the best. The other answers can be cancelled out.

Hope this helps!

Its led to the use of indentured servants, and later enslaved Africans, for agricultural labor.

The growth of tobacco in the Virginia colony was brought by John Rolfe in the 1600s.

John Rolfe is the first person to plant tobacco in Virginia.

Later on, the Tobacco cultivation formed the basis of the colony's economy because its generate revenue from the cash crop.

Proceed from this crop was used to purchase the indentured servants and slaves to cultivate it.

In conclusion, the introduction of tobacco led to use of indentured servants, and later enslaved Africans, for agricultural labor.

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Match the careers with the education required for each job.

Answers

I’m confused... where’s the picture?

Tyler’s math class found that it would take 2.5×108 dollar bills to cover a square mile area. The surface area of the United States is about 3.8×106 square miles. About how many dollar bills are needed to cover the United States?

Answers

Answer:

Somebody once told me the world is gonna roll me

I ain't the sharpest tool in the shed

She was looking kind of dumb with her finger and her thumb

In the shape of an "L" on her forehead

[Pre-Chorus]

Well, the years start coming and they don't stop coming

Fed to the rules and I hit the ground running

Didn't make sense not to live for fun

Your brain gets smart but your head gets dumb

So much to do, so much to see

So what's wrong with taking the backstreets?

You'll never know if you don't go

You'll never shine if you don't glow

[Chorus]

Hey now, you're an all star

Get your game on, go play

Hey now, you're a rock star

Get the show on, get paid

And all that glitters is gold

Only shooting stars break the mold

[Verse 2]

It's a cool place, and they say it gets colder

You're bundled up now, wait 'til you get older

But the meteor men beg to differ

Judging by the hole in the satellite picture

The ice we skate is getting pretty thin

The water's getting warm so you might as well swim

My world's on fire, how 'bout yours?

That's the way I like it and I'll never get bored

[Chorus]

Hey now, you're an all star

Get your game on, go play

Hey now, you're a rock star

Get the show on, get paid

All that glitters is gold

Only shooting stars break the mold

[Interlude]

Go for the moon

Go for the moon

Go for the moon

Go for the moon

[Chorus]

Hey now, you're an all star

Get your game on, go play

Hey now, you're a rock star

Get the show on, get paid

And all that glitters is gold

Only shooting stars

[Verse 3]

Somebody once asked, “could I spare some change for gas?

I need to get myself away from this place"

I said, "Yep, what a concept

I could use a little fuel myself and we could all use a little change"

[Pre-Chorus]

Well, the years start coming and they don't stop coming

Fed to the rules and I hit the ground running

Didn't make sense not to live for fun

Your brain gets smart but your head gets dumb

So much to do, so much to see

So what's wrong with taking the backstreets?

You'll never know if you don't go (Go!)

You'll never shine if you don't glow

[Chorus]

Hey now, you're an all star

Get your game on, go play

Hey now, you're a rock star

Get the show on, get paid

And all that glitters is gold

Only shooting stars break the mold

[Outro]

And all that glitters is gold

Only shooting stars break the mold

Explanation:

. Without completing the calculations, determine what the new volume will be in the problem below. Also, explain how you were able to determine the new volume without completing the calculations. Pay special attention to how the pressure is changing. Fifty (50.) mL of helium gas is stored at a pressure of 300 kPa. The pressure is changed to 150 kPa. What is the new volume? *

Answers

Answer: 25 mL ;

Explanation:

Note:  Boyle's law:  P1 * V1 = P1 * V2 ;

               pressure decreased by half, or "divided by 2" / as such:

 so volume would be divided by 2 ;  as such: 50. mL /2 = 25 mL.

 The answer is:  25 mL .

____________________________________

Note: This is assuming that temperature is constant.

Hey Ya'll what is your fav song from high school musical the series???
mine is "All I want " by Olivia Rodrigo

Answers

Same mine is all
I want because I’m not even in high school.....

Answer:

Mine is the same as yours

A rectangle has a length of 2 meters an a width of 40 centimeters. What is the perimeter in meters

Answers

Answer:

4.8m

Explanation:

Changing data to fit your hypothesis is an example of a violation of:
integrity
morality
O compliance

Answers

i believe the answer is compliance

Which of the following sentences first expresses the main claim of the passage?

(4) Once there, helicopters again lifted the goats, this time in crates, into the mountains to be set free.


(5) In this way, wildlife officials caught 114 goats in the first phase of the Mountain Goat Management Plan, but they ultimately will have relocated 90 percent of the 700 goats from the Olympics to the North Cascades.


(6) This removal process may be complicated, but it is necessary.


(9) Since then, the goat population has flourished and could reach 1,500 by 2028.


(10) Park officials also worry about the goats’ deleterious habits of damaging vegetation and causing erosion.

Answers

Answer:

Sentence 6

Explanation:

The passage discusses why it is necessary to remove mountain goats from Olympic National Park and transport them to North Cascades National Park. The sentence transitions from the opening description of the transportation process (“This removal process may be complicated”) to the assertion of its importance (“but it is necessary”) that will be discussed throughout the rest of the passage. The second paragraph explains how the goats damage the environment of Olympic National Park, the third paragraph explains how they endanger the safety of human visitors, and the fourth paragraph explains why North Cascades National Park is a better location for the goats.

Which of the following political groups would have been most supportive of the ruling described in the passage from McCulloch v. Maryland?

a) Southern Jacksonians
b) Northern Democratic-Republicans
c) Southern farmers
d) Northern manufacturers

Answers

Answer:

D

Explanation:

Apex

Answer:

D

Explanation:

.....

An object moves 8 N to the left and 4 N to the right. Find the net force. Net force equal Is this balanced?​

Answers

Answer:

4 n left

Explanation:

The net force of the object is 4 N to the left.

What is net force?

Net force is the single obtained when two or more forces are combined

To calculate the net force of the object, we use the value below.

Formula:

F' = F₁-F₂............... Equation 1

Where:

F' = Net force of the objectF₁ = Force of the object to the leftF₂ = Force of the object to the right

From the question,

Given:

F₁ = 8 NF₂ = 4 N

Substitute these values into equation 1

F' = 8-4F' = 4 N to the left

Hence, the net force of the object is 4 N to the left.

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Which of the following versions of the underlined text best accomplishes this goal?
In September 2018, an amazing spectacle took place in the skies above Olympic National Park: blindfolded, sedated mountain goats hovered in the air, suspended in harnesses from a helicopter.

A) (as it is now)
B) officials from the National Park Service enacted a plan to relocate goats
C) steps were taken to ensure the safety of visitors to Olympic National Park
D) there was a small but noteworthy addition to the animal population of North Cascades National Park
E) the first phase of the Mountain Goat Management Plan began

Answers

Answer:

A( as it is now)

Explanation:

GIVEN

Answer:

answer below

Explanation:

took the test its correct.

Describe gestalt psychologists’ understanding of perceptual organization. In doing so, explain how figure-ground and grouping principles aid in perception. In your response, explain how the Necker cube is an example of a figure-ground concept.

Answers

Answer:

These psychologists study how the brain organizes gestalt's. By pointing out that the whole may exceed the sum of its parts, they noted that we filter sensory information and construct perceptions. To recognize something we first have to perceive it and distinguish it from its surroundings. We order the stimuli  by organizing it into meaningful groups using categories such as,  proximity, continuity, and closure. The Necker cube provides evidence that by focusing on different parts of the figure, one can force a more stable perception of the cube demonstrating the figure ground principle of consistent interpretation.

Explanation:

These psychologists research how gestalts are organized in the brain. They made the observation that we filter sensory data and create perceptions, and that the whole can be greater than the sum of its parts. To see something and separate it from its surrounds is the first step in being able to recognize it.

What is psychologist's research?

By classifying the stimuli into meaningful groupings using concepts like proximity, continuity, and closure, we order them.

The Necker cube offers proof that one can induce a more stable view of the cube by focusing on different portions of the figure, illustrating the figure's fundamental idea of consistent interpretation.

Research psychologists use scientific approaches to investigate problems and test theories with the aim of understanding the human mind and behaviour.

Thus, These psychologists research how gestalts are organized in the brain.

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why are you guys so sensitive to what ppl comment on ur stupid questions... like chile-

Answers

Answer:

ong like find yo chill

Explanation:

Which of the following is true of how computer's represent numbers

Answers

Where are the choices?


Step-by-step explanation

Answer:

With a fixed number of bits, some numbers are too large to represent in a computer, which will lead to overflow errors

Is anyone here a girl let me know

Answers

Answer:Don't ask questions like this just ask on another app or something because you can get banned and they will stop giving you warnings

Explanation:

Other Questions
ASAP ASAP ASAPHELP ME PLEASE Identifying Connections: How were the roman and Christian values similar Smithson Company uses a job-order costing system and has two manufacturing departments Molding and Fabrication. The company provided the following estimates at the beginning of the year: Molding Fabrication Total Machine-hours 20,000 30,000 50,000 Fixed manufacturing overhead costs $800,000 $300,000 $1,100,000 Variable manufacturing overhead per machine-hour $5.00 $5.00 During the year, the company had no beginning or ending inventories and it started, completed, and sold only two jobsJob D-75 and Job C-100. It provided the following information related to those two jobs: Job D-75: Molding Fabrication Total Direct materials cost $375,000 $325,000 $700,000 Direct labor cost $200,000 $160,000 $360,000 Machine-hours 15,000 5,000 20,000Job C-200: Molding Fabrication TotalDirect materials cost $300,000 $250,000 $550,000Direct labor cost $175,000 $225,000 $400,000Machine-hours 6,000 24,000 30,000Assume Delph uses a plantwide overhead rate based on machine-hours.Required:1-A. Compute the predetermined plantwide overhead rate. 1-B. Compute the total manufacturing costs assigned to Job D-70 and Job C-200. 1-C. If Delph establishes bid prices that are 150% of total manufacturing costs, what bid price would it have established for Job D-70 and Job C-200? 1-D. What is Delph's cost of goods sold for the year? Assume Delph uses departmental overhead rates based on machine-hours.2-A. Compute the predetermined departmental overhead rates.2-B. Compute the total manufacturing costs assigned to Job D-70 and Job C-200.2-C. If Delph establishes bid prices that are 150% of total manufacturing costs, what bid price would it have established for Job D-70 and Job C-200?2-D. What is Delph's cost of goods sold for the year? I need help with this question If N gains two electrons, which of the following elements would it be isoelectronic with A) CB) SC) BD) F AMY HAS TWO TOMATO PLANTS. ONE IS 5 3/4 INCHES TALL AND THE OTHER IS 8 1/2 INCHES TALL. WHAT IS THE DIFFERENCE IN HEIGHT BETWEEN THE TWO TOMATO PLANTS? What is the cost of juice in dollars per fluid ounce? If a country is taking action to increase its overall productivity and make sureits businesses are successful, it is pursuing which economic goal?A. Per capita improvementB. Economic growthC. Full employmentD. Stable pricesSUBT PLEASE IM BEGGING U I NEED THIS PLEASE!!! THANK U FOR HELPING cries!!What is the equation of the line, in standard form, if the slope is = - 1/4 and it passes through point (-3,4) ?THANK U SO MUCH!! Which statement about the graph is true? The period of the graph is 2pi/3The amplitude of the graph is 2 units The domain of the graph is from 3 to 3 and is inclusive. The graph represents a reflection over the x-axis of the function y = 3sin(2x) 1.What is the slope of the function shown on the graph?A line is graphed on a four quadrant coordinate plane. The x-axis and the y-axis go from negative 10 to 10 in increments of 1. The line passes through (0, 7) and (4, 2).A56B54C65D452.A quarry runs a delivery service for crushed stone. The cost to deliver the crushed stone is a flat fee for the delivery and the cost of the crushed stone in terms of weight. The graph of the total cost, C, in dollars as a function of the weight, x, in pounds of the crushed stone is shown. What is the meaning of the y-intercept?A line is graphed on a first quadrant coordinate plane. The horizontal x-axis is labeled Weight in pounds and goes from 0 to 6000 in increments of 200, and the vertical C of x-axis goes from 0 to 500 in increments of 20. The line passes approximately through (0, 120) and (400, 134).A.The cost of the delivery is $120.B.The cost of stone dust is $0.035 per pound.C.The cost of the delivery is $70.D.The cost of stone dust is $70 per ton.3.What is the x-intercept of the function f(x) graphed on the coordinate plane?A line is graphed on a four quadrant coordinate plane. The horizontal axis goes from negative 7 to 7 in increments of 1, and the vertical axis goes from negative 7 to 7 in increments of 1. From left to right, a straight line passes through (0, 1) and (2, 0).A2B1C2D1 Ratios and RatesExpress each ratio as a fraction in the simplest form1) 30 miles out of 30 miles2) B blue cars out of 12 cars3) 7 quarts to 84 quarto4) 25 cups to 35 cups5) 9 gallons to 36 gallons6) 54 bootles out of 60 insects7) 10 pennlos to 45 penniesB) 28 dimes to 48 dimosExpress each phrase as a rate and unit rate(Round your answer to the nearest hundredth)RateUnit Rate9) 130 miles on 4 gallons of gas10) 9 inches of snow in 7 hours11) 6 calculators cost $150.0012) 8 pencils for 16 dollars13) 10 chocolate bars cost 17 dollars14) 7 dollars for 3 cans of tuna15) 9 batteries cost 13 dollars16) 14 dollars for 8 booksMath-Ads.com Need help with Spanish homework plz help! Read this excerpt from the poem "Lincoln Looked.Lincoln looked forward and sawa divided house cannot stand.He looked ahead, beyond the brimof his stovepipe hat, and wherethere were many people, he saw one.Lincoln looked up at the cloudsturning in the sky and knew thatthe nation was doing the same thingin time.It was time for a change. Lincolnlooked deep within himself and searchedfor the recipe for a new country madefrom so many wild and unique ingredients.Which kind of structure does this poem have?rhythmic verseformal versefree verserepetitive verse please answer these honestly and take as much time as you need. ty. Maya is working two summer jobs, making $7 per hour babysitting and $11 per hour landscaping. Last week Maya earned a total of $96 and worked 3 times as many hours babysitting as she worked hours landscaping. Determine the number of hours Maya worked babysitting last week and the number of hours she worked landscaping last week. Plzzz help D.AIdentify the nonlinear graph,A)B)BC)D Where is the point (-8,0) located on the coordinate plane?1. On the X-axis2. In quadrant ll3. In quadrant lll4. On the y-axis if i agree with saying school should require community service hours in order to graduate what would someone who is disagreeing say Which operation results in an expression equivalent to ? 23y^4 - 6y^3 + 35y^2 - 20yA. Q - PB. PQC. P - QD. P + Q