Researchers want to use eDNA to look for an invasive species in a waterway.
Which of the following steps should they do first?
O A. Isolate eDNA from water samples taken from the waterway.
B. Compare the eDNA with a positive control.
C. Cut the eDNA into fragments of different sizes.
D. Sort the eDNA into bands on a gel.

Answer is A I just did it

Answers

Answer 1

Answer:

Points to make sure that you have a I will be able to make a paper game at the same time

Explanation:

I wish I could have been there for you to use as a backup tool for your


Related Questions

Complete the sentence. Members of _________ formulate policy in committees and subcommittees to address environmental needs.

the courts
Congress
interest groups
the presidency

Answers

Answer:

The answer is Congress

Explanation:

I took the quiz and got it right.

Answer: B

Explanation:

Which statements are not true regarding the carbon reservoirs in the carbon cycle?
1. Decomposers break down the dead organisms and return the carbon in their bodies to the atmosphere as carbon dioxide by
respiration.
II. Photosynthesis contributes to excess amounts of carbon dioxide found in the atmosphere and in the oceans.
III. Plants and animals release carbon dioxide into the atmosphere through the process of respiration
IV. The oceans absorb a large amount of the atmospheric carbon dioxide.
V. Carbon dioxide is not generally found in the atmosphere due to natural processes, the only way it is emitted is through burning of
fossil fuels.
es)
A)
ll and
B)
III, IV, V
0)
HI, IV, V
D)
II, III, IV

Answers

2 and 5 are false Photosynthesis absorbs carbon dioxide and real sea oxygen carbon dioxide is found brutally in the environment through cellular respiration as cells intake oxygen and release carbon

Help please ASAP I need this answer

Answers

Answer:

a: metaphase

Explanation:

the chromosomes are aligned at the metaphase plate

YA'LL ARE SMART ! PLEASE HELP !

Answers

Answer:

I think the answers Lithium..

Lithium is correct option

Roberto wants to measure the lengths of the sides of a metal cube. Which tool should he use?


Answer: ✔ Ruler


To make a solution, Sian must measure 15.0 mL water. Which tool should she use?


Answer: ✔ graduated cylinder



An experimental procedure calls for 35.9 g sodium chloride and 15.2 g silver nitrate. What tool should be used to measure these substances?


answer: ✔ electronic balance




Mark needs to determine how much the temperature of a solution changes during a chemical reaction. Which tool does he need?


Answer: ✔ thermometer

I was struggling to find the answers for these questions. So decided to put the questions along with the right answers for the people that might need it

feel free to answer if you need the points or if you just want to say something.

this is for Edg 2021

Answers

Answer:

Roberto wants to measure the lengths of the sides of a metal cube. Which tool should he use?

✔ ruler

To make a solution, Sian must measure 15.0 mL water. Which tool should she use?

✔ graduated cylinder

An experimental procedure calls for 35.9 g sodium chloride and 15.2 g silver nitrate. What tool should be used to measure these substances?

✔ electronic balance

Mark needs to determine how much the temperature of a solution changes during a chemical reaction. Which tool does he need?

✔ thermometer

Explanation:

Scientists utilize models for a variety of different purposes, but each type of scientific model has limitations. What might
be a limitation of existing solar system models?
a. They are not based on experimentation.
b. They are used for prediction.
C. They cannot be changed.
d. They are based on current knowledge.
Please select the best answer from the choices provided
B
ОООО
D
Mark this and return
Save and Exit
Next
Submit

Answers

It would be D. Our knowledge about the solar system will be ever growing.

A well designed experiment includes an experimental group and a control group.

True or false

Answers

Answer:

True

Explanation:

A good experiment needs the control group to see what the base is and an experimental group to be tested.

hope this helps. . . <3

why cell known as structural and functional unit of life.​

Answers

Explanation:

The cell is known as the structural and functional unit of life because all living beings are formed of cells. Cells are very important for performing various life processes which are required for sustaining life on earth. Moreover, cells give form and structure, process nutrients and make it into usable energy.

Answer:

Cell known as structural and functional unit of life

Explanation:

Cells are Known as Structural and Fuctional Unit of Life because It carries several life processes in its own such as Cellular Respiration and Digestion. These are also Building Blocks of our Body.

The carbon cycle involves a variety of processes that transfer carbon among Earth systems. Many of these processes also transfer which one!
element?
o A oxygen, which bonds with carbon in carbon dioxide
B. nitrogen, which bonds with carbon in amino acids
C. phosphorus, which bonds with carbon in DNA
D. chlorine, which bonds with carbon in a variety of compounds

Answers

A oxygen, which bonds with carbon in carbon dioxide

Cellular respiration transforms glucose and oxygen into carbon dioxide, water, and energy.
C6H12O6 + 602 = 6CO2 + ?H20 + Energy
Based on the law of conservation of matter what is the missing coefficient for water?
1. 6
2. 8
3. 4
4. 2

Answers

Answer:

6

Explanation:

The left side of the equation has 6 molucules.

C6H1206

The equation must be balanced so it must be 6 for the coeffciet of water.

On the basis of the law of conservation of matter, the missing coefficient for water is 6 in the process of cellular respiration. Thus, the correct option for this question is 1.

What is Cellular respiration?

Cellular respiration may be defined as a chemical process through which the breakdown of food in the cell occurs with the liberation of energy in the form of ATP. It involves the series of chemical reactions by which living organisms produce energy through the oxidation of organic substances.

The entire process of cellular respiration transforms glucose and oxygen into carbon dioxide, water, and energy. According to the process of balancing chemical equations, the number of the hydrogen atom is equal to 12, then the water molecule comprises H20, so there is a need of inserting 6 to complete the missing coefficient for water.

Therefore, the missing coefficient for water is 6, thus, the correct option for this question is 1.

To learn more about Cellular respiration, refer to the link:

https://brainly.com/question/2809259

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Out of the 11 organ systems of the human body,which organ system is not required for survival of the organism

Answers

Answer:

The appendix may be the most commonly known useless organ.

Explanation:While plant-eating vertebrates still rely on their appendix to help process plants, the organ is not part of the human digestive system

The structures present on the underside of leaves of terrestrial plants that help reduce transpiration are?​

Answers

Answer:

They are called Stomatas.

Explanation:

A waxy cuticle covers all aerial surfaces of land plants to minimize water loss. These leaf layers are clearly visible in the scanning electron micrograph. The numerous small bumps in the palisade parenchyma cells are chloroplasts.

You can find this information here: https://courses.lumenlearning.com/wmopen-biology2/chapter/plant-structures/#:~:text=Stomata%20on%20the%20leaf%20underside,palisade%20parenchyma%20cells%20are%20chloroplasts.

YA'LL ARE SMART ! PLEASE HELP!

Answers

6 is valence electrons oxygen have!

how free trade rather than protectionism can favour countries.​

Answers

Explanation:

Free trade is good for consumers. It reduces prices by eliminating tariffs and increasing competition. ... In principle, this will make goods and services cheaper. In contrast, protectionism can result in destructive trade wars that increase costs and uncertainty as each side attempts to protect its own economy.

What kind of question would an
environmental biologist ask?
A How can a prosthetic hand be made?
B How can a vaccine for HIV be developed?
C How can the extinction of plants and
animals be prevented?
D How can more crops
be grown in poor soils?

Answers

Answer:

Answer: C

Explanation:

Answer: C

An object is said to be ____
if it has
an imbalance in positive and negative
charges.
A. Charged
B. Neutral
C. Massive
D. Balanced

Answers

Answer:

b !!!!!!!! or a ??????? I think so anyway

5. What can the farmer do to streamline the marketing chain of the potatoes?

Answers

The farmer can streamline the potatoes by advertising

What is the primary source of energy in a food chain?

O oxygen
sun
carbon dioxide
O water

Answers

Answer:

Sun.

Hope it is helpful.

Reflection:
What challenges do you envision that would hinder the progress of a flipped
classroom?

Answers

Answer:

Explanation:

Need to Know. How are you creating a need to know the content that is recorded? Just because I record something, or use a recorded material, does not mean that my students will want to watch, nor see the relevance in watching it.

Engaging Models. One of the best way to create the "need to know" is to use a pedagogical model that demands this. Whether project-based learning (PBL), game-based learning (GBL), Understanding by Design (UbD), or authentic literacy, find an effective model to institute in your classroom.

Technology. What technology do you have to support the flipped classroom? What technology gaps exist that might hinder it? Since the flipped classroom is about recorded video, then obviously students would need the technology to do this.

Reflection. Every time you have students watch a video, just like you would with any instruction

do you think that giving a person oxygen would be effective treatment ? answer right now

Answers

Answer:

It depends on the case, there is not enough information given to fully answer this question do to not knowing the patients symptoms and our what they have, but if the question is asking will giving oxygen to sustain the patients airflow and they have an open airway, then yes it would be an effective help but not full treatment.

Explanation:

Yes

The Michaelis-Menten and the Lineweaver-Burk plots can be used to determine the Km and Vmax of the enzyme-catalysed reaction. Explain the significance of Km value in enzyme catalysed reaction. By using succinate dehydrogenase as the enzyme, sketch a Lineweaver-Burk plot that shows an enzyme catalysed with and without competitive inhibitor. Explain what will happen if malonate is added to the reaction. Relate the Lineweaver-Burk plot to the effect of malonate on Km and I'max values. Using the knowledge from cell biology, explain how the enzyme is being synthesis.​

Answers

Answer:

gsjzvapdjssooqqwiwow epw w wysemevehejeowkkwjwkwknsd d

How to do this two question?

Answers

(i) The investigation was carried out at 40°C because the temperature is near optimum temperature and it denatures at a higher temperature.

(ii) The effects of increasing the pH on rate of activity of enzyme Q will be the increase in activity from pH 3 to pH 7, the decrease in activity from pH 7 to pH 11 and the optimum pH.

suggest why the new isolated southern population of frogs could be considered a separate new species​

Answers

Answer:

Because the frogs in the isolated contact area had a distinctively different call, and because they were effectively isolated from surrounding populations by mating preference, Hoskin and colleagues concluded that female choice led to this new species.

Is this a good problem/observation?

Answers

Yes, but maybe limit your experiment to a certain type of plant. Because you’re changing the type of plant and the frequency it may interfere. So maybe put only one specific type of plant- so maybe say something like “I want to observe whether my wild flowers grow faster depending on the frequency I water them- once a day in comparison to once every two days, or a week.”

GIVING BRAIN-LIST TO THE CORRECT ANSWER!!!!!!!!
______________________

Any hunch you have is as good as a scientific theory.

True or false?

Answers

Answer:

false

Explanation:

scientific theories are based mainly on alot of detailed studies.

The correct answer is false.

scientific theories have been closely researched while I hunch is just a thought.

affect(s) the fluidity of the cell membrane by limiting the movement of phospholipids.

A. Glycoproteins
B. Carbohydrates
C. Fatty Acids
D. Cholesterol

Answers

Answer:

The fluidity of the membrane is defined as the viscosity of the lipid bilayer, such that it can affect the inward and outward movement of the biomolecules. The correct option is Cholesterol. It affects fluidity by either decreasing or increasing. It is the most important factor for the regulation of fluidity.

Explanation:

Cholesterol affects the cell membrane's fluidity because these molecules are randomly distributed along the lipid bilayer. The cholesterol functions to hold the phospholipid together, such that it does not create large spaces and allow the movement of unwanted particles.

The cholesterol plays a crucial role in holding the phospholipids, as in the absence of cholesterols, lipid bilayer will separate and allow diffusion of unwanted molecules.

Glycoproteins are the molecules in which proteins having glycans are linked to amino acid side chains. These molecules play a crucial role in the recognition and adhesion of the cells.

Carbohydrates are linked to lipids, known as glycolipids, which are a vital part of cell membranes. These molecules function to address the loci but do not affect the fluidity of the cell membrane.

Fatty acids can be unsaturated or saturated, which consists of multiple or single bonds. These bonds result in fluidity.

How long does it take for mammals to evolve into a distinctly new species? What changes occur over
this time?

Answers

Answer:

i hope this helps <3

Explanation:

A new study by Matt Davis at Aarhus University throws these losses into stark relief. He estimated how long it would take for mammals to evolve enough new species to replace the ones that we have eradicated. And his most realistic answer is somewhere from 3 million to 7 million years.

The time that would be taken for mammals to evolve into a distinctly new species is 3 million to 7 million. The changes that will occur will be mental and physical changes.

What is evolution?

Evolution is a process of changing human characters or other animal characteristics over time. Evolution happens with time, and it is a natural process.

Species is a term that refers to different animals and plants living in the environment. Organisms of the same species can reproduce with each other. Other species are different from the one species.

Evolution in every species occurs with time and environmental conditions for better survival in the environment.

Thus, it would take mammals between 3 million and 7 million years to evolve into a wholly new species. The alterations that take place will affect both the mind and the body.

To learn more about evolution, refer to the link:

https://brainly.com/question/13492988

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Why biotic and abiotic factors are important to an ecosystem ​

Answers

Both biotic and abiotic factors are related to each other in an ecosystem, and if one factor is changed or removed, it can affect the entire ecosystem. Abiotic factors are especially important because they directly affect how organisms survive.

If two parents are contributing genetic material to their offspring, why don’t the genes and chromosomes double in each generation?

Answers

Because you only get generic material from each parent, 23 from each adding up to 46

Chromosomes and genes do not double in each generation in se-xual reproduction because they are usually halved before being donated to offspring.

What is meiosis?

Meiosis is a reductional division involving s-ex cells. Meiosis happens prior to se-xual reproduction.

In other words, the halving of chromosomes takes place during the formation of gametes. Thus, gametes usually carry half of the chromosome and only a copy of each gene of the parents.

When two gametes combine to result in a zygote, their chromosomes and genes also pair up to arrive at a normal number of chromosomes and genes.

More on gamete formation can be found here: https://brainly.com/question/931785

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difination of breeding

Answers

Answer:

THE MATING AND PRODUCTION OF offspring BY ANIMAL IS KNOWN AS BREEDING

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Find the midpoint, M, of AB.MB[?]22 please answer this correctly dont answer it wrong please:):):):) Which sentence uses theunderlined vocabulary wordincorrectly?A. His endeavor to get out of bed was not very successful.B. The fruit salad was a medley of colors, smells, and flavors.C. Evan and his mother made a reconciliation that destroyed their relationship beyond repair.(Words are: medley, reconciliation &endevor) EnglishM.3.x - 92r-7.X + 218 Kelsey deposited $3,600 in a bank account with annual interest rate 4.25%. How much interest was earned in 5 years? Please Help I really need this to not get behind in my math class. I would award more points but I fear people are just gonna answer with no actual answer and just for points. About 600 B.C.,____began to take over thegovernment of Greek city-states by force. Which describes the process that could be used as the first step in solving this equation? 6x = 4 + 5(x + 8) A) Combine like terms by adding 4 + 5. B) Use distributive property to multiply 5(x + 8). C) Use division property of equality to divide both sides of the equation by 6. D) Use subtraction property of equality to subtract 6x from both sides of the equation. find the complement of the B in universe U. U is the set of natural numbers less than or equal to 8. B is the set of even factors of 8. 1458 smallest whole number by which it should be multiplied so as to get a perfect square number.also find the square root of the square number obtained Scenario: 500 units of a product are being manufactured and the question to be answered is whether or not to perform a particular test on those units before shipping. The test costs $10,000 per unit to perform. The cost not to perform the test is $0 per unit, but if a unit fails in the field then it will have to be fixed in the field, which has a cost of $350,000 per unit.If the units are tested, for the units that pass the test, there is now an additional cost of re-readying the units for delivery of $2,000 per unit. For the units that fail the test, there is now an additional cost of $21,000 to fix the units, as well as the $2,000 per unit cost of re-readying them for delivery, for a $23,000 total cost per unit.Historically you know and can count on the fact that 96% of your products will pass the testing. The same pass/fail rate for testing applies to the pass/fail rate observed in the field.To fully complete this assignment, you need to answer or perform the following:The math and resulting values you are expected to fill in to show the completion of the decision tree.Be sure to fill in the last two values: what is the Expected Monetary Value for both performing the test and not performing the test?Which choice should be made? Be sure to include with your submission an answer to whether the test should be performed or not, and give a short answer why. The sum of the first n terms of an arithmetic sequence is n/2(4n + 20). a) Write down the expression for the sum of the first (n 1) terms. b) Find the first term and common difference of the above sequence. What is Slope=2, y-intercept =5 the score analysis of a school show the following. 180student register for Economics, 90 student Economics and political science,10 student Economics only, 150 student Economics and Geography, 120 student political science and Geography, 210 Geography, total number of students that register for the subjects= 250. find the number of students who register for.1. political science2. political science and Geography but not econs3. Economics and political science but not Geography Compare the movement of four cars. Car A covered a distance of 60 km in 1hr.Car B covered a distance of 30 km in 30 minutes. Car C covered a distance of 20km in 15 minutes, Car D covered a distance of 10 km in 7 minutes, which car hadthe highest velocity?" The first person to answer this correctly gets Branilist! why is rufus important to dana? (in the book kindred) What is the solution to this system of equations using the linear combination method?Please help!! 2) To move the camera toward or away from an object is called:A) ArcB) DollyC) PanD) Tilt I took these photos for art class, wanted to know if i should edit them a bit