When determining CFU/mL, plates with more than 300 colonies should be eliminated from analysis, being designated: Group of answer choices TNTC TSA TVAC TFTC

Answers

Answer 1

Answer:

TNTC

Explanation:

The correct option would be TNTC.

TNTC simply means Too Numerous To Count.  The term is usually reserved for bacterial culture plates with high bacterial loads, usually in the excess of 300 colonies. It is as opposed to TFTC (Too Few To Count) which is the term used when the colony count on a bacterial culture plate is less than 30.

When a bacterial culture plate is too numerous to count, it can either be eliminated from data analysis or the sample diluted to lower the bacterial load.


Related Questions

The student comes up with the following hypothesis: Hypothesis: If I increase the
temperature of the water, then the rate of cellular respiration will increase because the
yeast will be more active. For the lab report, what should the student state as their
problem/question they are trying to answer

Answers

Answer:

what happens to the rate of cellular respiration when the temperature of the water increases.

Explanation:

I'm not 100% sure but i think that, that is at least close to what you are looking for.

Living organisms are commonly divided into six kingdoms: archaea, bacteria, fungi, protists,
plants, and animals. What’s the biggest problem with classifying organisms in this way?

Answers

they may be in the same category but they don't have the same biological makeup

The biggest problem in classifying organisms this way is that the way is not well-defined and diverse and if any organism doesn't fall into another kingdom that is added to these kingdoms.

What is classification?

Organisms are classified into groups and classes on the basis of their characters and structure. It helps in identifying and understanding the diversity of living organisms.

The six kingdom classification is based on similar characteristics like cell type, and food. Before this, scientists divide the organism into plants and animals.

Thus, The major issue with this system of classifying creatures is that it is not well-defined and diverse, and if an organism does not fit into one of the existing kingdoms, it is added to those already there.

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During the Cardiovascular Function Labster simulation, cardiac output did not increase as much as oxygen consumption rate (which increased 8x), what is the most likely mechanism that could allow increased oxygen delivery by the cardiovascular system

Answers

Answer:

An increase in the rate of oxygen that has been removed from hemoglobin could increase the supply of oxygen by the cardiovascular system.

Explanation:

Hemoglobin is a protein, present in the cardiovascular system, whose main function is to remove oxygen from the lungs and take it to the tissues of the human body. Therefore, the more oxygen is removed from the hemoglobin, the greater the oxygen supply. This applies even in the situation presented in the question above, where cardiac output did not increase in the same way as oxygen consumption. In this case, if oxygen consumption is high, the removal of oxygen from the hemoglobin must be increased to supply this consumption.

True or False:
Variation is key to life on the planet, but while it benefits the group, it doesn't benefit every individual IN the group.

Answers

Answer:

I believe the awnser is true. ((I'm not completely sure))

PLEASE HELP ASAP FOR 25 POINTS!! :D
6 Identify) What particle increases in number when a base is dissolved in water?
​​A: OH–
B: H3O+
​​C: H2O​​
D: H'

Answers

Answer: A: OH-

Explanation:

Bases are substances that increase the concentration of OH- ions in water when they dissolve in it.

It is well known that sugars glucose and fructose are the primary fermentable substrates. However, malic acid can also be fermented but to lactic acid rather than ethanol. This is especially important in red wine, why?​

Answers

Answer:

The correct answer is - due to the different bacteria that produce a different enzyme that is involved in the fermentation of malic acid.

Explanation:

In red wine production, malic acid in present in grapes converted to a softer lactic acid. This process is known as malolactic fermentation. It takes place due to the presence of different types of bacterias such as bacteria of the lactic acid family.

These bacterias produce enzymes which is used to convert the malic acid to lactic acid such a process can occur naturally also.

Which kind of evidence is used by scientists to understand the intermediate states between an ancestral form and that of its
descendants?

A) causation

B) correlation

C) natural selection

D) transitional fossils

Answers

It is transitionial fossils

The intermediate states between an ancestral form and that of its

descendants are transitional fossils.

What is a transitional fossil?

Transitional fossils are remains of an organism that came in between a known version of a species and the current species.

Transitional fossils would be proof of evolution because they would show medium forms of a species and they altered and accumulated adaptations at a slow pace.

Thus, option "D" transitional fossils are correct.

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CHAPTER ONE THE CHEMICAL COMPONENTS OF THE CELL Biology Form Three Student Book
1. What is the percentage by mass of oxygen, carbon, hydrogen, nitrogen,
phosphorus and sulfur in the earth and in the human body? What do you
observe?
(MB
2. Which elements have a higher percentage in the nature and in the human
body? State some compounds that contain these elements in their struc-
ture.
3. Many chemical substances enter the structure of the of the cell. In your
opinion, what is the importance of these substances? Why have you select-
ed these substances?
4. There are other elements that exist in a fewer percentage, search these
elements and state the percentage abundance of each in the cells of living
organisms.​

Answers

1. Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
2. The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you.

please help ill give brainliest :)) At the equator, the earth spins a distance of 26,120 miles every day. At what speed does the Earth spin in mph?

Answers

Answer:

1088 mph

Explanation:

26120/24 = 1088.333 ≈ 1088

Answer:

1088.333mph

Explanation:

26,120miles ÷ 24hours = 1088.333mph

State your claim. Make sure your claim fully explains how infrared photography can be used to visualize temperature differences​

Answers

Answer:

Infrared thermography using an infrared camera is the most popular technique for detecting surface temperature without contact. ... Passive thermography measures relevant temperature differences of the surface by heating it with lamps (heat sources).

which is considered a chemical mutagen

Answers

Examples of chemical mutagens would be nicotine and other compounds in cigarette smoke that cause mutations involved in lung cancer.

Besides the interaction between animals and plants, what other factors may be involved in the carbon and oxygen cycles?

Answers

Answer: .co2

Explanation: co2

Answer:

The other factors which are involved in the carbon and oxygen cycles are air, ground, respiration, and photosynthesis.

Which factor contributes to the carbon cycle?

Explanation: Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.

How do plants and animals interact with the carbon cycle differently from one another?

Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too. Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood, and leaves decay bringing the carbon into the ground.

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What is an example of the strong force in action

Answers

Answer:

A magnet keeps a cabinet door closed. The Sun pulls on Earth as Earth moves around the Sun. The protons in the nucleus of a carbon atom are held together.So this is an example of the strong force in action.

There are 4 fundamental types of forces:

1. Electromagnetic

2. Gravitational

3. Strong

4. Weak

You asked about strong force, the strong force keeps quarks together in clusters to make more-familiar subatomic particles, such as protons and neutrons.

Which RNA base pairs with the adenine in DNA?
Thymine
guanine
cytosine
uracil

Answers

Thymine is ur answer for in DNA

Answer:

uracil

Explain: it pairs up with the dna

How Many Years Ago Was Parachute Invented?????
If YOU WANT BRAINLEST THEN ASAP​

Answers

the parachute was invented 4,000 yrs ago! :)

Answer: 4,000 years ago

The parachute was invented 4,000 years ago, when Chinese observers noticed that air resistance slowed free-falls. Legend states that a safe jump was made from a granary using two bamboo hats. In the 800s, Abbas Ibn "Armen" Firnas jumped off a tower in Cordova (Iberian peninsula) using a large cloak like a wing.

Plz do 6 and 9❤️❤️❤️❤️❤️ Plz

Answers

Answer:

no

Explanation:

Write each label into the appropriate category to designate whether the given item describes elements of gray or white matter of spinal cord.
Contains myelinated axons
Posterior column
Located to the periphery of the spinal cord
Gracile fasciculus
Anterior spinocerebellar tract
Medial vestibulospinal tract
Marked by low myelination White matter
Functions to integrate arriving electrical signals
Contains somas, synapses, and dendrites
Tectospinal tract
Functions to transmit electrical signals rapidly over long distances
Lateral horn
Ventral horn
Gray matter White matter

Answers

Answer:

- Contains myelinated axons: White matter

- Posterior column: White matter

- Located to the periphery of the spinal cord: White matter

- Gracile fasciculus: White matter

- Anterior spinocerebellar tract: White matter

- Medial vestibulospinal tract: White matter

- Marked by low myelination: Gray matter

- Functions to integrate arriving electrical signals: Gray matter

- Contains somas, synapses, and dendrites: Gray matter

- Tectospinal tract: White matter

- Functions to transmit electrical signals rapidly over long distances: White matter

- Lateral horn: Gray matter

- Ventral horn: Gray matter

Explanation:

Both the brain and the spinal cord contain white matter and gray matter. White matter is the tissue responsible for information transmission (i.e., axons); whereas gray matter is mostly involved in information processing (i.e., neuron bodies). White matter is composed of myelinated axons which extend out from the neuron bodies and glial cells, and this tissue connects different areas of the cerebral cortex (i.e., the outer layer of the brain). Moreover, gray matter is composed of neuronal cell bodies or 'soma'  that contain the neuron’s nucleus and unmyelinated axons. Gray matter also has glial cells and capillary blood vessels; whereas white matter also has oligodendrocytes that produce myelin and astrocytes. The color of the white matter is caused by the myelin that surrounds the axons; while the color of the gray matter is due to the capillary blood vessels and neuronal cell bodies. In the cerebrum and cerebellum, white matter is observed in deep areas coated by gray matter; whereas, in the spinal cord, the white matter surrounds the central gray matter. White matter is involved in normal motor and sensory function, this tissue is responsible for learning and coordinating communication between different brain regions. Moreover, grey matter is involved in muscle control and sensory function (e.g., hearing, vision, memory, emotions, speech, decision making, etc).

which statement regarding these methods of reproduction is correct?

Answers

Answer:

put the picture of the question

Explanation:

i cant help you if you dont

help..........................

Answers

Answer:

d

Explanation:

water strider able to walk on the surface of the lake

Answers

Answer: ??

Explanation:

Answer:

it is able to walk on water because it's feet have hydrophobic atoms on their feet that help them walk on the water

The energy-yielding phase of _____________ generates two molecules of NADH and four molecules of ATP per processed glucose molecule.

The citric acid cycle
The electron transport chain
ATP synthase
Glycolysis

Answers

Answer:

I think it’s Glycolysis

Explanation:

Answer:

Hi, there the answer is Glycolysis

Explanation:

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate,

Hope This Helps

100 points


what is 1 times 1 in Biological perspective​

Answers

Answer:

1

Explanation:

Answer:

is answer 3

Explanation:

never even heard of Biological perspective

What are the early signs of osteoarthritis?

Answers

Pain areas: in the joints, hands, hip, knee, lower back, or neck
Pain circumstances: can occur related to weather
Pain types: can be severe in the joints
Joints: stiffness, crackles, swelling, or tenderness
Hand: bump on the finger or bony outgrowth in fingers or toes
Also common: joint deformity or limping

Joint pain in the hands, neck, lower back, knees, or hips is the most common symptom

Construct an explanation to predict the type of symbiotic relationship that exists between the hippo and oxpecker birds?

Answers

Answer:

The hippopotamus and the oxpecker bird are in a mutualistic and parasitic relationship. This is because the oxpecker bird gets food and protection from the hippopotamus. However, the bird gets food by making little cuts in the hippopotamus to obtain insects. This isn't entirely harmful to the hippopotamus though.

Hope this helps you ❤️

Mark me as brainliest ❤️

What results will the scientist most likely obtain when placing drops of the indicator on the leaves?

Answers

Answer:

The scientist will be most likely obtain when placing drops of the indicator on the leaves by resulting dark purple.

Explanation:

dark purple is the answer.

Considering that the indicator is Phenolphthalein, then it will remain colourless. If it is methyl orange, then it will become red. If it is universal indicator, then it will become blue to dark blue. Because leaves are slightly acidic.

Would would be the possible gamete combinations?

Answers

Answer:

1/4 WR; 1/4 wr; 1/4 wR; 1/4 Wr

Explanation:

The principle of independent assortment indicates how different genes independently separate from one another when gametic (reproductive) cells develop. When a cell divides by meiosis, homologous chromosomes are randomly distributed to daughter cells, thereby different chromosomes segregate independently of each other. In consequence, each gamete has a unique combination of chromosomes. In this case, the two genes are on different homologous chromosomes, thereby gene variants (alleles) will be randomly distributed to daughter cells during meiosis (anaphase I) and thus the expected proportion of gamete genotypes will be 1/4 WR, 1/4 wr, 1/4 wR, 1/4 Wr.

Which of the following is formed last in daughter cells when plant cells divide?

The nucleus
The nuclear envelope
The cell membrane
The cell wall

Answers

Answer:

The cell wall is formed last

Answer:

the nucleus is the last thing formed

Can someone please do this for me I will
Litteraly Venmo anyone to do this whole assignment for me

Answers

I won’t do it but I’ll help you. This is what the punnet square should look like

evidence of evolution on comparative embryology​

Answers

Answer:

Scientists have used comparative embryology to study and gather evidence of evolution. Karl Ernst von Baer, a Russian scientist, made observations on embryos of different species and came up with four principles of comparative embryology: 1. General features of an embryo appear before specialized features.

Explanation:

PLS HELP BIG GRADE 5. Water stored in a reservoir is used to generate electricity as it flows down and into a river. The river flows to the ocean, where it evaporates to form clouds. Rain falls from the clouds into streams that flow into the reservoir.
Which location of the water has most potential energy? Assume the amount of water in each place is the same. These are the locations: 1. where it enters the river from the reservoir, 2. when it is in the ocean, 3. when it is in the reservoir, and 4. when it is in the clouds.
1. Where it enters the river from the reservoir.
2. When it is in the ocean.
3. When it is in the reservoir.
4. When it is in the clouds.
Explain your answer.

Answers

Answer: Water falls from a reservoir through a channel to a turbine. The water turns the turbines, which allows the generator to make electricity.

Explanation: Hydroelectricity can be defined as the generation of electricity by utilizing the speed of water stream in a reservoir of water. The high speed water current is used to move the water turbine the energy produced in the turbine can be used to generate electricity by the generator.

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