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

Determine the percent increase per year from 1999 to 2004

Answers

Answer:

Hey bud, I saw this was your first question. You need to attach some files to your question in order for us to see it. You can do that by using the Paperclip shaped icon on the bottom when you are making a question.

Explanation:

Enzymes are typically fibrous proteins.

True

False

Answers

I believe the answer to this is “False”

Explanation:

Enzymes are typically globular proteins.

Enzymes are mainly globular proteins - protein molecules where the tertiary structure has given the molecule a generally rounded, ball shape (although perhaps a very squashed ball in some cases). The other type of proteins (fibrous proteins) have long thin structures and are found in tissues like muscle and hair.

How are impulses received to the brain? Step-by-step???

Answers

So, impulses are basically reactions from something else. So, in the brain, there are neurons, which are also known as brain cells. They have two main and really important parts, called the dendrite and the axon. The dendrite receives the impulse, either from the central nervous system (CNS) or from the peripheral nervous system (PNS). After this event, the axon transfers and carries the impulse away from the cell body. Also, the impulse travels through a little gap in between neurons called the synapse, before the impulse travels to the next neuron. And, remember, this process is not slow. This process occurs in a matter of milliseconds. Think about it. If you burn your hand from something really hot, you will react to that really fast as an impulse. Millions of neurons will react to that in just a second. That's why science is so cool. It has so many interesting topics and fascinating facts, like this. Anyways, I hope this helped you. Enjoy your day.

 

Dendrites get impulses. Axons carry impulses.

A cat jumped off a shelf. It has 40 Joules of Mechanical Energy and 16 Joules of Kinetic Energy. What is the Potential Energy? (ENTER THE NUMERICAL VALUE ONLY)

Answers

Answer:

24 Joules

Explanation:

The formula is mechanical energy = kinetic energy + potential energy. So in order to find the potential energy you will need to reverse it.

Mechanical energy- Kinetic energy= Potential energy.

40- 16= 24

Answer: 24 Jolues.

Hope this helps!

51. Evaluate each of the following, and write the answer to
the correct number of significant figures.
a. 97.381 + 4.2502 + 0.99195
b. 171.5 + 72.915 – 8.23
c. 1.00914 + 0.87104 + 1.2012
d. 21.901 – 13.21 - 4.0215

Answers

A I don’t really think it’s wrong but if it is I’m sorry

Name the main energy-
storing products of each
phase of photosynthesis.

Answers

Answer:

Rubisco

Explanation:

All of these substances are found in the cell membrane except


phospholipids

cholesterol

transport proteins

ribosomes

Answers

Answer:

ribosomes

Explanation:

Why do you want to read research by scientists who used the scientific method?

Answers

Answer:

When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis (often in the form of an if/then statement), the results aiming to support or contradict a theory.

the foot is ___ to the nose

Answers

Answer:

below

Explanation:

what are the options?

Moosehead Lake in Maine is a beautiful lake, spanning 74,890 acres with a maximum depth of 246 feet. The most sought-after fish to be found in Moosehead Lake are: Landlocked salmon, lake trout, brook trout, and burbot. According to Tim Obrey, a regional fisheries biologist with the Maine Department of Inland Fisheries and Wildlife, the fishing at Moosehead declined from phenomenal to just "really good" during the late 1980s, but has rebounded due to careful management. This table shows the populations of three major fish in Moosehead Lake over a 30 year period. Moosehead Lake was illegally stocked with smallmouth bass in 1970. Fish Populations in Moosehead Lake Year Smallmouth Bass Salmon Lake Trout

Smelts are the primary food source for lake trout and salmon in Moosehead. In the late 1980s, we documented a dramatic increase in the abundance of wild lake trout in Moosehead Lake. Swelling lake trout numbers taxed the forage base and the smelt population took a dive. What would be appropriate action for Wildlife Management to make to correct the problem? Choose ALL that apply.

B) One hundred small, one-hectare size areas should be conserved
C) Native species should be maintained or planted within the greenspace to promote biodiversity.
D) Exotic species should be cultivated and planted to increase biodiversity in the protected greenspace.
E) The majority of the secondary consumers should be removed from the greenspaces to promote an increase in lower levels of the food chain.

(WILL GIVE BRAINLIEST WHOEVER CAN ANSWER RIGHT!!!!!!)

Answers

When one of the trophic web links disappears, it affects the whole chain. In management programs it is important to consider these consequences to keep the whole ecosystem equilibrium. In the exposed situation, Native species should be maintained or planted within the greenspace to promote biodiversity and The majority of the secondary consumers should be removed from the greenspaces to promote an increase in lower levels of the food chain.

--------------------------------------

The trophic chain is the energy transference process that involves different organisms, from autotroph or producers, to the consumers or decomposers.

The disappearance of one link affects the whole system. The direct superior link does not have enough food supply, while the immediately anterior link is beneficiated for not being eaten by its predator. And finally, as this last link will overgrow, it will consume greater quantities of its food, causing a decrease in its anterior link. Top-down control refers to scenarios where superior predators control the structure and dynamic of an ecosystem.

It is necessary and significant to consider these modifications in the whole ecosystem while planning management actions to keep an equilibrium.

In the exposed example we know that the most wanted species are

Landlocked salmon, lake trout → which increased its population size sharply over the last yearsbrook trout, and burbot

Smelts, which are the primary food source for lake trout and salmon, decreased in population size significantly.

Finally we know that smallmouth bass was introduced in 1970.

This information suggests that the decrease in smelts' population is due to the predation of the species by the lake trout, which population increased sharply in size. The change on smelts' population size, might affect the blook trout and salmon populations, that also feed on semelts, and might also affect other species occupying inferior levels.

When implementing a management program, it would be necessary to promote biodiversity by growing native species in greenspaces and ensure their survival and reproductive succes. In the exposed case, it is necessary to preserve smelts' population, so it would be also necessary to remove from these green spaces the secondary consumers -trouts and salmon- that feed on them, to ensure the smelts' population growth and recovery.

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Related link: https://brainly.com/question/8354950?referrer=searchResults

Answer:

The Answer is A, C, and D

Explanation:

Wildlife management reacted to the increase in trout and depletion of smelt by liberalizing bag limits on lake trout and allowing harvest of smaller fish. We also severely reduced the salmon stocking rates. Salmon and trout populations had to be controlled until smelt could rebound.

What enzyme breaks down starch in your saliva?
pepsin
trypsin
lipase
amylase

Answers

Answer:

D

Explanation:

It is the amylase, or rather alpha-amylase

what does it mean when an emission line of helium from a galaxy is shifted toward red

A. The galaxy contains a small percent of Hydrogen

B. The Galaxy is moving toward the viewer

C. The galaxy is moving away from the viewer

D. The galaxy contains a large percent of hydrogen

Answers

Answer:

the answer is the galaxy is moving away from the viewer! lemme know if you need the rest of the answers or anymore help

Explanation:

i took the test :)

When an emission line of helium from a galaxy is shifted toward red, it means that the galaxy is moving away from the viewer. Thus, the correct option is C.

What is Galaxy?

The Galaxy may be defined as a tremendous collection of dust, gas, dark matter, and billions of stars and their solar systems, all held together by gravity.

When it is shifted toward red, it describes the displacement of an emission line of helium from a galaxy to longer wavelengths. This alteration is interpreted as a doppler shift.

It depends on the location of any celestial body in a galaxy. The farther from us a star is, the more its light has shifted towards the red end of the visible spectrum.

Therefore, when an emission line of helium from a galaxy is shifted toward red, it means that the galaxy is moving away from the viewer. Thus, the correct option is C.

To learn more about Galaxy, refer to the link:

https://brainly.com/question/1995133

#SPJ2

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:

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

w
8. At the surface of a swimming pool a 2.0 L balloon is under 760 mmHg of pressure. If that balloon is taken to the
bottom of the deep end, the pressure is now 950 mmHg. What is the new volume of the balloon?
0.45 L
b. 1.6L
2.4 L
d. 95 L
a.
C.
voru

Answers

The new volume of the balloon is 1.6L

HOW TO CALCULATE THE FINAL VOLUME:

Using Boyle's law, which states that the pressure of a given gas is inversely proportional to its volume i.e PV = K

Boyle's law equation is as follows:

P1V1= P2V2

Where;

P1 = initial pressure (mmHg)P2 = final pressure (mmHg)V1 = initial volume (L)V2 = final volume (L)

According to this question,

P1 = 760mmHg

V1 = 2L

V2 = ?

P2 = 950mmHg

Using P1V1 = P2V2

760 × 2 = 950 × V2

1520 = 950V2

V2 = 1520/950

V2 = 1.6L

Therefore, the new volume of the balloon is 1.6L

Learn more: https://brainly.com/question/18395849

The Science of Biology: Question 1: Explain how sunlight is the primary source of energy for your own life? Question 2: In terms of energy, what is the difference between glucose and ATP? Question 3: Explain the role of a hypothesis in a scientific investigation? ( Will Mark Brainliest if correct). ​

Answers

Answer:

cause sunlight is the basic source of energy which is used in our daily life

Explanation:

sunlight is the main source of energy for the earth. without sum nothing is possible . sunlight is relatable in every systematic flow. like wise in photosynthesis, life cyle,drying food or fruits ,etc. moreover!

what are the six levels of organization in ascending order?

Answers

The levels, from smallest to largest, are: cell, tissue, organ, organisms, ecosystem, biosphere.

How is biotechnology useful for society?

Answers

Answer:

Like all technologies, biotechnology offers the potential of enormous benefit but also potential risks.

Biotechnology could help address many global problems, such as climate change, an aging society, food security, energy security and infectious diseases, to name just a few.

HOPE IT HELPS!!

how many organelles are there in a cell. What are their names and what do they do. I am keeping notes

Answers

Answer:

Nucleus - controls all activities of the cell

Nucleolus (in the middle of the nucleus)

- the synthesis of ribosomes and RNA (ribonucleic acid)

Mitochondria (battery of cell) - oxidise glucose to release energy in the form of ATP ( adenosine triphosphate)

Edoplasmic reticulum

1. Smooth - synthesises lipids

2. Rough- Transport proteins synthesised by ribosomes

Golgi apparatus ( golgi body, or any golgi, is has many names)

- Acts as Centre for processing, packaging and transporting macromolecules such as proteins and carbohydratez

Ribosomes - sites of protein synthesis

Lysosomes- Break down macromolecules such as proteins, lipids etc

Vacuoles - store food substances, site for waste products

Centrioles - form spindle fibres during cell division

Cytoplasm ( the so call empty spaces in the cell)

- place where biochemical reactions occur

Plasma membrane

-control movement of substances in and out of the cell due to its semi permeable characteristics

Ok that's all for animal cells, but for plants cells, there is more

Cloroplast - site for photosynthesis

Cell wall - Maintains the shape of plant call, give support to cells

Compared to developing nations, developed nations have
a. lower health standards
b.greater wealth.
c. faster-growing populations.
d. less social services.

Answers

Answer:

b greater wealth is the correct option.

A group of scientists must complete a study, but they have limited funding from a government organization. What practical ways could these scientists work around this limitation? Check all that apply.

Answers

Answer: You can consult:

One solution is to limit the scope of the study. Another possibility

is do several smaller studies over a longer period of time.

Explanation:

I'm not sure but hope it helps.

10.9) Are humans ectotherms?
If not, what are they?

Answers

Answer:

no they arent

Explanation:

they are endotherms

What is the name of the valve that keeps blood from flowing backward into the left ventricle?

Answers

When the left ventricle is full, the mitral valve closes and keeps blood from flowing backward into the left atrium when the ventricle contracts.

YA'LL ARE SMART ! PLEASE HELP !

Answers

Answer:

ionic dont belive me here u go for some help to thangs

Explanation:

i hoped i help all i can

A frog has more offspring than can survive on available resources which is this an example

Answers

Answer:

overpopulation

Explanation:

frogs lay thousands of eggs because many die. thus, this is an example of overpopulation.

Identify the type of artificial fibers based on the properties given below: (a) Different kinds of plastic bottles, utensils, films, wires are made from these fibres.​

Answers

Answer:

A) Rayon

B) Nylon

Explanation:

Answer:

Polyethylene terephthalate, A.K.A Pet. It's a form of polyester. :)


What stores materials that the
cell won't use immediately?

Answers

Vacuole stores water food waste and other materials in the cell

Which of the following statements about the tundra is accurate?

A:The tundra has four distinct seasons.

B:Most people who live in the tundra are farmers.

C:The tundra is very cold, but has high levels of precipitation.

D:Despite its cold climate, the tundra is home to numerous species of wildlife, including caribou and reindeer.

Answers

the ans is d

Explanation:

D:Despite its cold climate, the tundra is home to numerous species of wildlife, including caribou and reindeer.

its d

How is biotechnology useful for society?

Answers

Answer:

Hope it will help you!

Explanation:

Like all technologies, biotechnology offers the potential of enormous benefit but also potential risks. Biotechnology could help address many global problems, such as climate change, an aging society, food security, energy security and infectious diseases, to name just a few.

Modern biotechnology enables us to combat debilitating and rare diseases, minimize our environmental impact, feed the needy, use less and cleaner energy, and create safer, cleaner, and more efficient industrial manufacturing processes.

Which of the following is a complementary base pair for DNA?
O Adenine and thymine
Guanine and adenine
O Guanine and uracil
O Cytosine and thymine

Answers

Answer:

Hi, there! The Correct Answer Is Below! :)

O Adenine and thymine

Explanation:

Information to Backup my Answer!

Guanine and cytosine are bonded together by three hydrogen bonds; whereas, adenine and thymine are bonded together by two hydrogen bonds. This is known as complementary base pairing.

___________________________________________________________

-DarkSpirit-

Adenine and thymine
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Fitness in an evolutionary sense is measured in: a. Number of viable offspring produced b. Physical appearance c. Lifespan d. Ability to survive The live wire comes loose and touches the metal case explain how the Earth wire and fuse together make the heater electrically safe whats number 26............................... The graph of the reciprocal parent function, f(x) = ), is shifted 9 unitsdown and 11 units to the right to create the graph of g(x). What function isg(x)? What is social problem? Why was Allende opposed in chile an appliance repair p person charges 55 per trip plus 15 per hour for her labor. the cost of fixing a stove was 92.50. write and solve an equation to find how many hours it took to repair the stove mettez au singulier {NOUS AVONS DE BELLES CRAVATE} Can anyone help with this please During the mid-1800s, the greatest danger to American Indians in the West was Which type of bond and how many bonds would occur as carbon dioxide (CO2) is formed from carbon in Group IVA and oxygen in Group VIA?(1 point)one covalent bondtwo ionic bondsthree metallic bondsfour covalent bonds What are the main reason for incerasing cyber crime? A cube shaped box has a side of length 10mm.What is the volume of the box? Write as an algebraic expression five times the sum of a number and 4 The angle,2, lies in the third quadrant such that cos2=-2/5. Determine an exact value for tan . Show your work including any diagrams if you plan to use them. (3 marks) What are the four general characteristics of a state? identify one aspect of the nile River civilization that continued over time Can someone plz solve the math problem i attached as a screenshot. Thx What is the sum? 4(^5sqrt x^2y)+3(^5sqrt x^2y) Choose the correctly capitalized sentence(s).1. Norma heard the door slam, "Who's there?" she called,2. Ramon laughed. "who do you want it to be?"3. "Oh, it's just you," said Norma to her brother, "never mind."4. "Thanks a lot," said Ramon "it sure is nice to be appreciated."