As a general rule, should sample turbidity corresponds to sample fluorescence in liquid E.coli cultures?

Answers

Answer 1

Answer:

Throughout the explanation segment, the description of the query is presented below.

Explanation:

The turbidity spectrometer depending on the intensity isn't a trustworthy indication of microbial cell numbers. However, these should still be utilized as parameter estimates instead of the exact numbers.Benefits at all from the measurement of the radiation reflected by both acutely and chronically organisms, since adsorption capacities change as a result of the current microbiological composition.

Related Questions

The growth of the human population directly relates to the use of natural resources by humans. Based on the graph, which two statements about human use if natural resources are most likely true?


A. resources use by humans will be higher in 20 years than it is now

B. resource used by humans is much higher now than it was 200 years ago

C. Resource used by humans in steadily decreasing over time

D. Resource used by humans is about the same now as it was 150 years ago​

Answers

Answer:

A. resources use by humans will be higher in 20 years than it is now

B. resource used by humans is much higher now than it was 200 years ago

Explanation:

The growth of the human population has direct relation with the use of natural resources by humans means if the population of humans increases, more natural resources will be consumed by the population. Directly relation means if one increases the other automatically and vice versa. more population needs more resources for their growth  and survival so we can conclude that resources used by humans will be increases if the population increases.

Now differentiate between laws and theories

Answers

Answer:

laws are so far permanent and can be amended, other-wise they can't be removed

theories, are different, theories are just theories that are ready to become something like a law, it is still in testing mode, it is like a bill in terms of law and has a possibility to become a passed law, just needs more hypothesis's and conclusions

Explanation:

law = law that is passed

theories = bills in law

i)
State why the cobalt chloride paper is kept in a jar with a ground glass
stopper​

Answers

Answer:

bcz it is harmful for human body

Explanation:

Nonrenewable resources are those that cannot be replaced faster than they are used up by human populations. Do you think the resources you read about in this activity are nonrenewable? Explain why.

Answers

Answer:

first of all non renewable energy or resources is s energy or resources that can last for a particular time . such resources are depleted and cannot be replenished as the are used.

Explanation:

I think so because it is been recharged. e.g the phone been used is recharged or powered through electricity which can also be powered through waves of water from dams( kanji dams)

Andrew is trying to identify an unknown element. The element is dull and
brittle, and it is a poor thermal and electrical conductor. Where on the periodic
table is this element most likely found?

Answers

Answer:

non metals

Explanation:

What are the three different ways a baby animal develops and what is it called?

Answers

Gametogenesis, the generation of egg cells (oogenesis) or of sperm (spermatogenesis);
Fertilization, the entry of the sperm cell into the egg cell, followed by the union of the two cells' nuclei;
Embryogenesis (embryonic development) with. ...
Metamorphosis to an imago or adult.

2. Is caffeine really a source of energy

Answers

Answer

Yes i believe so

Explanation:

Same here lolzz !!!!!!!

Which gas is used by humans in the process of cellular respiration?

A) methane
B) nitrogen
C) oxygen
D) carbon dioxide

Answers

Answer:

oxygen is used by human in the process of cellular respiration

Which type of process occurs in the absence of oxygen?

cellular respiration

photosynthesis

fermintation

all of the above

Answers

photosynthesis prosecss in the absence of oxygen

Luke was Isked to find the median of the following
numbers:
16, 24, 12, 7, 30, 11,22
The work below shows the steps he used.
X X 16 22 24 30
What error did Luke make?
O He forgot to put the numbers in order first.
O He crossed off the low and high pairs incorrectly.
O He left out a number when putting the numbers in
order.
O He did not make an error.
16 + 22 = 38
2 2
16 22 = 38
19

Answers

Answer:

He left out a number when putting the numbers in order.

Explanation:

To find the median of a set of numbers, first arrange the numbers in order from least to greatest. Then begin crossing numbers of from each side at the same time.

Luke did not cross numbers off from each side, but only crossed them off from the left side. He also skipped a number, given there are only 2 "X's."

The list should look like so:

7, 11, 12, 16, 22, 24, 30

There should be three numbers before 16, not two as he has listed.

Why do some people argue that scientists should not use embryonic stem cells in medical research?
A. They think research conducted on these stem cells is not applicable to adults.

B. They think the use of these stem cells is too expensive.

C. They think the use of these stem cells is the same as ending a life.

D. They think research conducted on these stem cells is too difficult.​

Answers

[tex] \huge \rm \pink{answer}[/tex]

D. They think research conducted on these stem cells is too difficult.

They argue because they think the use of these stem cells is the same as ending a life. Therefore, option C is correct.

This viewpoint is rooted in ethical and moral concerns. Embryonic stem cells are obtained from human embryos, usually from unused embryos created during in vitro fertilization (IVF) procedures. Opponents argue that using these stem cells for research purposes involves the destruction of potential human life since the embryos are destroyed in the process of harvesting the cells.

The ethical debate surrounding embryonic stem cell research centers on the question of when life begins and whether it is ethically justifiable to use human embryos for scientific purposes.

Learn more about stem cells, here:

https://brainly.com/question/11161299

#SPJ4

the point when cytoplasm just start diffusion to separate from cellwall is

Answers

Answer :

Maybe Plasmolysis...

State three different information about zygote.

Answers

Answer:

A zygote is the union of the sperm cell and the egg cell . Also known as a fertilized ovum, the zygote begins as a single cell but divides rapidly in the days following fertilization. After this two-week period of cell division, the zygote eventually becomes an embryo.

Explanation:

Which of these occurs in the first trimester of human pregnancy?

A. The fetus accumulates fat under its skin.

B. The fetus's lungs become fully developed.

C. The fetus is able to move its limbs.

D. The fetus becomes medically viable.

Answers

Answer:

i think its probably A

Explanation:

the first trimester is when the fetus enters a stage of rapid development. forming most organs, facial features, skeletal tissue, and limbs. So its either A or B. But i dont think the lungs are fully developed yet so i would choose A. hope this helped

Which bone is identified in the picture below?
O A. Cranium
O B. Radius
C. Metacarpal
D. Sternum

Answers

⟟ think is the sternum sos if it’s wrong

Answer:

B) Radius

Explanation:

By the way for some people this question will have different answers so.. yeah

Complete each of the sentences with the correct word or words regarding the function and structure of nails.

a. Nails are a scalelike modification of the __________layer of the _________
b. Nails form on the _______edges of the fingers and the toes.
c. Fingernails _________digits from damage protect the

1. stratum corneum
2. do
3. dermis
4. do not
5. ventral
6. epidermis
7. dorsal

Answers

Answer:

a. nails are a scalelike modification of the stratum corneum layer of the epidermis  

b. nails form on the dorsal edges of the fingers and toes

c.  fingernails do protect the digits from damage

Explanation:

The stratum corneum consists of the top layer of the epidermis (i.e., skin). Nails represent a modification of the epidermis and they are composed of densely packed dead skin cells (keratinocytes), which are rich in a protective protein called alpha-keratin. The nail plate is the hard keratinized part of the nail. The nail bed is the skin underneath the nail plate. The nails grow from the proximal portion of the nail bed, which is known as the nail matrix. The main function of the nails is to protect the tips of fingers and toes from injury.

Your considering career options in health field which of the following would focus on performing medical test on animals

Answers

Answer: Become a veternarian.

What type of frog or toad is this

Answers

Answer:

Explanation:

scaled reptiles

Answer:

this would be a black spot toad i think i am not 100 percent sure but its most probably this is a black spot toad

Explanation:

hope this help :]

The arctic fox has a diploid number of 50 an arctic fox was forming gametes by meiosis, how many chromosomes would be visible in prophase 17 Are the chromosomes replicated or non-replicated?
a. 2. 50; unreplicated
b. 28; replicated
c. 100, replicated
d. 25: unreplicated
e. 6.50; Replicated

Answers

Answer:

50 visible chromosomes and replicated.

Explanation:

Diploid number 50Haploid number 25

When we talk about the cell cycle, we refer to the interphase and the cell division (mitosis or meiosis).

Interphase is composed of stages G1, S, and G2. During the S stage, the DNI replication process occurs. This is the only stage in which the DNI molecule replicates. The synthesis of histones and other associated proteins also occurs.

Meiosis occurs after the interphase is over.

Meiosis produces four daughter haploid cells (n) from a diploid germ cell (2n). Each daughter cell is haploid because they have half the number of chromosomes of the original one.

At the beginning of prophase 1, DNI is condensed in a well-defined chromosome formed by two sister chromatids joined by a centromere. Each chromosome carefully pairs with its homologous chromosome. Homologous chromosomes aline together to make the crossing-over possible, the stage where they interchange their parts.

The whole set of chromosomes is present in prophase 1. The reduction occurs later.

So if the germ cell has 50 chromosomes, the same 50 will be visible during prophase 1. DNA has already been replicated during the S stage of interphase.

hi im new just joined
The caterpillar, which is the larval stage of a butterfly, is very different from its adult form. Which phenomenon is responsible for this difference?
A. metamorphosis
B. regeneration
C. alternation of generation
D. molting

Answers

Metamorphosis IIRC, hope this help

Answer:

A

Explanation:

Metamorphosis is the process when large biological changes can occur like the transition from caterpillar to butterfly.

water enters a long vurvykar tube at a eman tempreture taht is lower than the tine surface temperatire. The curve that most closely describes the mean tempretire of the fluid as a function of

Answers

Answer:

The curve that most closely describes the mean tempretire of the fluid as a function of position  along the tube.

Explanation:

Hello. Your question is presenting very confusing words, however, through the context of the question as a whole, it is possible to see that you are saying that the water that enters a circular tube has a lower temperature than the temperature presented by the surface of the tube . In this case, if you are going to present a graph about this, it is important that this graph presents a curve that shows the relationship between the average water temperature as a function of the position of the water along the tube. This graph will be similar to the graph shown in the attached figure below.

A chain of monosaccharides is called a _________.
A. quasi-saccharide
B. multisaccharide
C. polysaccharide
D. glucose molecule

Answers

C. Polysaccharide
Hope this helps :))

Answer:

C. polysaccharide

Explanation:

^_^^_^^_^

a) Identify where exocytosis begins in this pathway.
How is the protein transported out of the cell?

Answers

Answer:

Protein cargo moves from the ER to the Golgi, is modified within the Golgi, and is then sent to various destinations in the cell, including the lysosomes and the cell surface. The Golgi processes proteins made by the endoplasmic reticulum (ER) before sending them out to the cell.

explanation:

correct me if I'm wrong (◍•ᴗ•◍)

While alive, an organism absorbs (radioactive) carbon 14 at such a rate that the proportion of carbon 14 in the organism remains at a known constant level. When it dies, it no longer absorbs carbon 14, so its proportion of carbon 14 begins to decrease. The half-life of carbon 14 is 5,600 years. A human skeleton is discovered whose level of carbon 14 is 15% that of a living human. To the nearest 100 years, how long ago did the person die

Answers

Answer:

The person has been dead for approximately 15,300 years

Explanation:

Available data:

The half-life of carbon 14 is 5,600 yearsThe human skeleton level of carbon 14 is 15% that of a living human

To answer this question we can make use of the following equation

Ln (C14T₁/C14 T₀) = - λ T₁

Where,

C14 T₀ ⇒ Amount of carbon in a living body at time 0 = 100%C14T₁ ⇒ Amount of carbon in the dead body at time 1 = 15% λ ⇒ radioactive decay constant = (Ln2)/T₀,₅T₀,₅ ⇒ The half-life of carbon 14 = 5600 yearsT₀ = 0T₁ = ???

Let us first calculate the radioactive decay constant.

λ = (Ln2)/T₀,₅

λ = 0.693/5600

λ = 0.000123

Now, let us calculate the first term in the equation

Ln (C14T₁/C14 T₀) = Ln (15%/100%) = Ln 0.15 = - 1.89

Finally, let us replace the terms, clear the equation, and calculate the value of T₁.

Ln (C14T₁/C14 T₀) = - λ T₁

- 1.89 = - 0.000123 x T₁

T₁ = - 1.89 / - 0.000123

T₁ = 15,365 years

The person has been dead for approximately 15,300 years

Which best describes the ecosystems on Earth?

A. Earth has mostly rain forest ecosystems.
B. Separate ecosystems can affect each other.
C. There are very few types of ecosystems on Earth.
D. Ecosystems do not interact with each other.

Answers

Answer:

Explanation:

B.  có nhiều hệ sinh thái khác nhau trên trái đất. mỗi hệ sinh thái có một đặc tính riêng và chúng có thể kết nối, tác động qua lại với các hệ sinh thái khác

describe the internal diameter of the aorta.​

Answers

Answer:

In sonographic measurements performed in the transverse view, the diameter of aorta (Ao) constituted 15.7 mm, the longer dimension of the inferior vena cava (IVC1) equaled 28.4 mm and the shorter one (IVC2) – 15.5 mm. In the longitudinal view, Ao equaled 15.3 mm and IVC – 18.8 mm (tab.

The normal diameter of the ascending aorta has been defined as <2.1 cm/m2 and of the descending aorta as <1.6 cm/m2. The normal diameter of the abdominal aorta is regarded to be less than 3.0 cm

why do many RNA viruses commonly demostrate antigen drift?​

Answers

Answer:

:D

Explanation:

What is the kind of asexual reproduction

Answers

This is the kind of asexual reproduction tho‼️


2. What is the longest wavelength?

Answers

Answer:

red

Explanation:

Visible light may be a tiny part of the electromagnetic spectrum, but there are still many variations of wavelengths. We see these variations as colors. On one end of the spectrum is red light, with the longest wavelength. Blue or violet light has the shortest wavelength.

Answer:

red has the longest wavelength.

Explanation:

blue and violet are the shortest

When crossing a true breeding white mouse with a true breeding brown mouse your friend tells you she recovered all black mice. But then when she crosses the F1 mice to each other she recovered 28 black mice, 8 brown mice, and 13 white mice. Can you help her explain these results? (Type out the cross and include genotypes of as many mice as possible. What phrase best describes this phenomenon? How many genes are involved are they linked or unlinked? Etc.)

Answers

Answer:

Following are the response to the given question:  

Explanation:

[tex]White = aaBB \\\\Brown = AAbb\\\\Parental \ \ cross: aaBB \times AAbb\\\\F1 \ progeny: AaBb\\\\F1 \ selfing: AaBb \times AaBb\\\\F2 \ progeny:\\\\[/tex]

[tex]\frac{9}{16} = A_{B_} = Black\\\\[/tex]

[tex]\frac{3}{16} = aaB_ \ = White\\\\[/tex]

[tex]\frac{3}{16} = A_{bb} = Brown\\\\\frac{1}{16} = aabb = White\\\\[/tex]

The observed progeny ratios closely match the morphological ratio of 9:3:4. That's a hereditary pharmacogenetic example.

Applying a number of distinct genes = 2

You have really no connection

Phenomenon=Recessive Epistasis

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6. You begin work at 8:30 am. You take an unpaid lunch break from 11:45 am to 12:30 pmYou also take two 15-minute unpaid coffee breaks during the day. Your work day endsat 5:00 pm. How many hours are you paid?a) Express your answer in hours and minutes.b) Express your answer as a decimal in hours only. BRAINLEST!!! PLEASE HELP ME WITH THIS QUESTION AND IF IT'S CORRECT I WILL DEFINITELY GIVE YOU THE BRAINLEST!!! Escribe la respuesta correcta en espaol o en Ingls.What year Is It currently on the Aymaran calendar? (You will need to take into consideration the date of the AymaranNew Year. If It is currently past the Aymaran New Year, add the number from the lesson. If the current date is before theAymaran New Year, add the number from the lesson and subtract 1.)(June 22, 2021) Enter the word that correctly completes the conversation.Anabel: Lorena, vamos a estudiar para el examen.Lorena: S, hay que estudiar en mi casa.Anabel: Dnde vives?Lorena: Mi____ es: Avenida Constituyentes, #35, Colonia Pacheco. why do we experience load shedding suggest how National and Provincial governments could help local government to effectively Keep clean communal environments [tex] {x}^{2} + 2x = 0[/tex] In December of Year 4, John (a cash-basis taxpayer) received a $2,000 payment from Tom who signed a year's lease to rent John's house. The $2,000 payment consisted of the following:1st Month's Rent (for the month of December, Year 4) $800Last Month's Rent (for the month of December, Year 5) 800Security Deposit (to be returned at end of lease) 400How much should John include as rental income on his Year 4 tax return as a result of the $2,000 payment? Which theater company has produced a number of actors and actresses who have gone on tobecome stars on the international stage? Choose the best Spanish translation.Are you from Ecuador?Ests de Ecuador?Estn de Ecuador?Es usted de Ecuador?Son de Ecuador? 72 x 24 in algorithm put this sentence in the correct order ein Buch Wohnzimmer Im Winter lese ich im Which of these can be a result of drinking alcohol? Find the positive solution to each equation A. t^3 = 216B. a^2= 25C. m^3 = 8D. c^3 = 343E. f^3 = 64 Gianna rented shoes, bowled 5 games, and bought 2 orders of nachos. She used a coupon for 25% off the price of her bowling games only. what was the significance of jumping a.keep the snake b.keep feet cleans c.avoid the hot water d.avoid the Bumbo stick que caracteristicas tenia elaspecto religioso de los egipsios?? show your full steps Help is appreciated Which of the following are examples of Structuring?(Select all that apply)A) Trying to purchase or reload multiple prepaid cards/gift cards, in multiple transactions as smaller amountsB) Purchasing prepaid cards/gift cards at different registers,C) Breaking up a large amount of money by coming in several times a day to conduct financial services transactions