A student forgets to mix the second tube of the serial dilution. How might this affect the subsequent dilutions?

Answers

Answer 1
A well mixed serial dilution is critical to achieving a homogenous mixture that has a constant concentration over the sample volume. If the dilution is not well mixed then it will affect the subsequent dilutions consent ration which will lead to percent error

Related Questions

Why did southern states prefer the electoral college system over a direct , popular vote system for electing a president ?

Answers

Explanation:

the southern states prefer the electoral college system over a direct , popular vote system for electing a president  because the elector collage was not rite because if some body got the popular vote but the elector collage would just throw that out  window because its points.

the temperate continental region is regulated by air masses moving over the ocean. true or false

Answers

Answer:

False

Explanation:

how is an organism modified ?

Answers

Answer: genetic engineering

Explanation

Genetic engineering is the modification of an organism's phenotype by manipulating its genetic material. Some genetic engineering uses the principle of recombination. Recombination is the process through which a new gene is inserted into a bacterial DNA "The plasmid".

please help , give me a good paragraph & ill give you extra points

Answers

Answer:

kinetic potential energy is turned into speed as it slides down the hill

the more kinetic energy the ball had the further it moved the cup

Explanation:

asexual reproduction involves two-parent organisms
true or false

Answers

False, it includes 1 parent and produces a offspring as it’s asexual

aa
6. The distance north or south of the equator is called

Answers

Answer:

Explanation:

Latitude is the correct answer

Answer:

Latitude is the measurement of distance north or south of the Equator. It is measured with 180 imaginary lines that form circles around the Earth east-west, parallel to the Equator. These lines are known as parallels

Explanation:

hope it helps:)

PLEASE HELP I AM NOT GOOD AT SCIENCE

Which of these Earth systems interact when a volcanic eruption produces a large amount of smoke?

geosphere and cryosphere
geosphere and atmosphere
hydrosphere and biosphere
hydrosphere and cryosphere

Answers

Answer:

Geosphere and atmoshphere

Explanation:

To which group does this worm belong?​

Answers

Insects I believe because worms are insects

Answer:

answer is segmented

Explanation:

i just answered that

pls help! past due

Which solution is hypotonic?

Which solution is hypertonic?
A) the inside of the cell
B) Neither
C) both
D) the beaker

Answers

Hypotonic - the inside of the cell
Hypertonic - the beaker

Answer:

D I believe I could be wrong

Explanation: Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.

Hey I am doing school and need someone to talk to

Answers

Answer:

focus on your work

Explanation:

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How is the production of NADPH useful for the process of photosynthesis?

Answers

The NADPH produced in the light-dependent stage of photosynthesis provides the chemical energy to fuel the Calvin cycle and keep it going

The Calvin cycle is maintained and powered by the NADPH generated during the light-dependent stage of photosynthesis.

What is the role of NADPH is the photosynthesis?

From the thylakoid to the stroma, NADPH moves. It is a high-energy electron carrier that transports both high-energy electrons and the hydrogen needed to make sugar.

NADPH will go to the Calvin cycle, where its electrons will be used to convert carbon dioxide into carbohydrates. ATP is the other component required by the Calvin cycle, and the light reactions also supply this.

NADPH is created during photosynthesis by using light energy in the chloroplasts' electron transport chain.

The Calvin cycle and subsequent processes that result in the production of carbohydrates can subsequently utilize it as a form of energy currency.

Therefore, the production of NADPH useful for the process of photosynthesis.

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22.what products of photosynthesis and reactants for respiration belong in the box to complete the cycle?


A -hormones
B -chlorophyll a and chlorophyll b
C -ATP AND ADP
D -glucose and oxygen

Answers

Answer:

Glucose and Oxygen hope that helps.

Explanation:

The box in this question is likely referring to the carbon cycle, which is a cycle of biochemical reactions that involve the transfer of carbon between different forms in the environment. The products of photosynthesis and reactants for respiration that belong in the box to complete the cycle are glucose and oxygen.

What is photosynthesis ?

Photosynthesis is the process by which plants use energy from the sun to convert carbon dioxide and water into glucose and oxygen. This glucose is then used by the plant for energy, and the oxygen is released into the atmosphere.

During respiration, the glucose is broken down in the presence of oxygen to release energy, which is then used by the plant for its various functions. The end products of respiration are carbon dioxide and water. Chlorophyll a and chlorophyll b are both types of pigments found in plants that are essential for photosynthesis.

They absorb energy from the sun and help convert carbon dioxide and water into glucose and oxygen. Hormones, on the other hand, are molecules that are produced by the plant to regulate its growth and development.

They are not directly involved in the carbon cycle. Finally, ATP and ADP are molecules that are involved in the transfer of energy within a cell. They are not directly involved in the carbon cycle, but they are essential for respiration as they help to break down glucose and release energy.

In summary, the products of photosynthesis and reactants for respiration that belong in the box to complete the cycle are glucose and oxygen.

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Two cells have surface area to volume ratios of 1:1 and 5:1. Which one has the ability to move nutrients in and expel wastes the best? Explain why

Answers

The answer is 5.1 because the nucleus will work faster

Uhm help. It's bio and abt Punnett Squares. 30 points!

Answers

Answer:

1.

BL         Bl        bL         bl

BL BBLL BBLl BbLL BbLl

Bl BBLl BBll         BbLl Bbll

bL BbLL BbLl bbLL bbLl

bl BbLl Bbll         bbLl         bbll

2.

The remaining species to carry on are

bbLL, bbLl, bbll

Explanation:

1. The punnet square is as follows

 

BbLl x BbLl

BL         Bl        bL         bl

BL BBLL BBLl BbLL BbLl

Bl BBLl BBll         BbLl Bbll

bL BbLL BbLl bbLL bbLl

bl BbLl Bbll         bbLl         bbll

2. It is given that species with dominant B will die.

Hence the remaining species to carry on are

bbLL, bbLl, bbll

Question 8
The force exerted on you by the weight of molecules in the air is known as
Wind
Air Pressure
Radiation
Humidity
2021 Illuminate Education, Inc.

Answers

B because it’s it’s exterded by weight because wind dosent have weight it dosent move air pressure does

Think back to the last lesson we covered. What is the difference between revolution and rotation of a planet?

Answers

Answer:

Revolution refers to movement around another object whereas rotation refers to the spinning of an object.

Explanation:

Revolution is defined as the movement of one object around another object whereas rotation is defined as the spinning of an object about its own axis. In revolution the object moves from one place to another around another object while on the other hand, in rotation the object does not moves from one place to another but rotates at one place.

help me please biology 1

Answers

Answer:

50%

Explanation

          b       b

 B  |    Bb    Bb

 b  |    bb     bb

Define simple sugar?

Answers

Answer:

Simple sugars are called monosaccharides, made up of single sugar molecules.

Explanation:

Examples of these are glucose, fructose, and galactose. When two simple sugars are joined together by a chemical bond they are called disaccharides, the most common of which is sucrose or table sugar

answer a sweet, crystalline substance, C12H22O11, obtained chiefly from the juice of the sugarcane and the sugar beet, and present in sorghum, maple sap

Explanation:

Scientists have discovered that stem cells can be used to grow new organs. Which statement describes a benefit of this type of biotechnology?


A) There would be a genetic difference in the new organs.


B) There would be an increased need for organ donations.


C)There would be a decreased need for enzymatic cancer treatments.


D)There would be a reduced risk for the recipient to reject the new organ.

Answers

Answer:

A

Explanation:

I think I am not sure but ya

*PLEASE ANSWER!!, I DONT GET IT*
What is the most important reason for exploring the Earth’s oceans?

a.) to secure funding for research

b.) for financial gain

c.) to ensure the survival of our species

Answers

Answer:

b

Explanation:

because of oil and rare materials at the floor of the ocean

what is the name of the process used to make ATP by cells that have no oxygen available?

Answers

Answer:

glycolysis ( anaerobic respiration)

Explanation:

The reason the lactase gene is made is due to ?

Answers

Answer: milk is present in the digestive system, which turns on the gene for lactase.

Explanation:

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Question:- what is photosynthesis?​

Answers

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.

Which type of asexual reproduction allows an organism to grow from an older organism? *
Which type of asexual reproduction allows an organism to grow a stem or root? *

Answers

Answer:

1.Budding 2.I do not know

Explanation:

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ANSWER THE QUESTION WHERE IT SAYS "APPLY IT"

Answers

Answer:

Having a cold makes me feel like i cant breath because my nose is stuffy, and  i dont want to talk because my throat is itchy.  I also feel very tired, like i haven't slept in days. A cold messes with your sense of smell a lot.

Explanation:

hope this helps :)

yes, having a cold made me feel very unmotivated to do anything it also made me feel tired and irritated. Old affected my body because it made me tired and it made my head hurt, it also made my nose stuffy. this could also trigger your breathing.

A cactus plant, a snake, and a hawk can be members of the same

A- community
B- kingdom
C- population
D- species

Answers

i think it would be a-community

A cactus plant, a snake, and a hawk can be members of the same called community.

What is community ecology?

Community ecology is an expanding and wealthy subfield of ecology. Ecologists examine the factors that impact biodiversity, community system, and the disbandment and surplus of species.

These characteristics include relations with the abiotic world and the diverse array of interactions that occur between species.

Thus, a cactus plant, a snake, and a hawk can be members of the same called community.

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as distance between two objects increase (gets bigger) the pull of gravity..

A. decreases

B. stays the same

C. increases

i’ll mark u as brainliest helpppp

Answers

Answer:

 A. decreases

Explanation:

Since gravitationalforce is inversely proprtional to the distance by the formular F = GM1M2/r^2.

Plz plz plz help help hell u will save my life

Answers

Answer:

BIOSPHERE LEVEL

Explanation:

Biosphere level / D :)

HELP PLEASE
How does the flow of weathered and dissolved rock material towards the ocean affect the chemical composition of the ocean?

A.
The pressure of the water is decreased

B.
The pressure of the water is increased

C.
The salinity of the water is increased.

D.
The salinity of the water is decreased

Answers

C. the salinity of the water is increased

The salinity of the water is increased does the flow of weathered and dissolved rock material towards the ocean affect the chemical composition of the ocean. So, the correct option is C.

What is the Chemical composition of Ocean?

Understanding the chemical properties of the ocean is essential because the marine environment supports the greatest abundance of life on Earth, whose life is largely composed of the same chemicals that make up seawater and salts.

The two important elements in sea water, after oxygen and hydrogen, are sodium and chloride where sodium and chloride combine to form the salt we know as table salt. The salinity of sea water is expressed as the ratio of salt (in grams) to liters of water.

Thus, the salinity of the water is increased does the flow of weathered and dissolved rock material towards the ocean affect the chemical composition of the ocean. So, the correct option is C.

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What did Walter Sutton observe about the relative numbers of chromosomes in the body cells and sex cells of grasshoppers?

Answers

Answer:

Sutton observed that sex cells half the number of chromosomes as boy cells.

Explanation:

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Which is the best estimate for the product of 103.132 1,031.2? BE QUICK!!10,0001,000,0001,000100,000 balance the equations Use the information in the table to identify the metalwith a volume of 1.38 cm3.O aluminumO zincO chromiumO nickel whats the best answer for this equation: 4(b - 4) ; b = 5 FREE BRAINLIEST!! ill also answer questions that you have posted if you answer correctly!!!! (32pts) Using the equation below, how many liters of water can be made from 7.6 L of oxygen gas at STP? A(n) _______________________ is a soldier hired to fight for a foreign army. Read the statement:During the Industrial Revolution, America moved from an agrarian(farming) society to an industrial society.What does that statement mean?Edit ViewInsertFormatToolsTable12ptParagraphB ITV: What likely explains the poor reputation of Leopold II among historians today? Which is NOT an element of a dystopia? *1.A leader or idea is worshipped2.Everyone is uniform (the same)3.Citizens under constant surveillance.4.A love of nature can you help with this please what is the name of the world's first scientist? please help me with this! (Multiple choice)m Help I need this to be done and if it is not my parents will kill me literally heeeeeeeeelp me ples PLZZ IM LOSING HOPEWhich sentence from the article provides factual evidence to support the writers claim that the moon landing united humankind? A.The budget of the National Aeronautics and Space Administration (NASA) was increased dramatically. (p. 3) B.Approximately 530 million people around the world watched the first lunar landing on television. (p. 4) C.The three Apollo 11 astronauts embarked on a world tour when they returned. (p. 4)D.The U.S. didnt just come out on topit took the whole world with it. (p. 5) Which of the following best describes why the Ghost Dance became so popular in the late 1800's? a. The Ghost Dance was a non violent way for Native Americans to intimidate the U.S forces without provoking any retaliation.b. The Ghost Dance energized the people suffering on the reservation because it quite literally made them forget their fear and hunger. c. The Ghost Dance was one of the few traditional dances and spiritual rites that had brought all indigenous people together for centuries. d. The Ghost Dance was one of the last hopes of many Native Americans living on reservations, and with little other hope many began performing the dance. PLEASE ANSWER ;( also this is for ELA I need help. And its about The Giver bookLOVE: As Jonas learns about love, his feelingsbecome deeper. He is frustrated because hisparents and friends don't feel love. (1) Why is thecommunity safer without feeling of love (2) Howdoes love add happiness to our lives? (3) Can lovecause sadness? EXPLAIN AND ELABORATE IN ACOMPLETE PARAGRAPH Chris works at a jewelry store, and he earns 4% commission on all sales that he makes. If Chris's jewelry sales total $1,370, how much will he earn in commission? Why did atlanta develop into one of Georgias leading cities during wwll. Many wartime industries grew within the city. many troops were trained within city limits Atlanta developed a major port at the timeAtlanta had the biggest airport in the south