Occasionally, plates like the ones inoculated as part of this exercise are allowed to remain in the incubator for extended periods of time (two weeks or more). When the plates are examined, the agar is desiccated and Halobacterium salinarium is seen growing on plates labeled 5% NaCl and 10% NaCl, despite the fact that H. salinarium requires a minimum of 13% NaCl for growth. Explain why this happens.

Answers

Answer 1

Answer and Explanation:

This happened because when the agar was desiccated, all the water was released, but the solutes used in the culture medium remained in the petri dish, that is, all the nutrients remained available to H. salinarium, which survived by consuming these nutrients. Although the growth of H. salinarium requires a higher level of NaCl than the level left in the petri dish, we can consider that some colonies of H. salinarium adapted to the low level of NaCl and managed to survive, passing this characteristic to new colonies.


Related Questions

What is the name of for a different froms of gene

Answers

I’m guessing you’re talking about an allele, that would be your answer.

In a well-fed human eating a Western diet, the richest source of stored chemical energy in the body is ________. In a well-fed human eating a Western diet, the richest source of stored chemical energy in the body is ________. glucose in the blood fat in tissue calcium phosphate in bone glycogen in muscle cells protein in muscle cells

Answers

Answer:

fat in tissue

Explanation:

Biomolecules like carbohydrates, fats etc. are well known for their energy storing abilities. Glucose, as a carbohydrate, is the most used source of energy but is stored in excess as glycogen in the muscle and liver cells.

However, fats are far more efficient in storing energy than carbohydrates or proteins because they give more ATP per molecule. Fats are stored in tissues of the body called ADIPOSE tissues. Hence, the richest source of stored chemical energy in the body is FATS IN TISSUES.

Plz answer, will give brainliest

Answers

Answer:

a. (black fur): phenotype

b. (AA, Aa, aa): genotypes

c. (Aa): heterozygous

d. (aa): hom0zygous recessive

e. (AA): hom0zygous dominant

Explanation:

I took genetics and biology I hope this helps !!

"Red rust is one of the destructive diseases in tea plants which results adverse effect on tea yield. It is caused by a type of algae." Which discipline of Biology is related to explain the above statement? a. Mycology b. Agronomy c. Pathology d. Phycology

Answers

Answer:

C

Explanation:

The correct answer would be plant pathology.

The branch of biology that is generally concerned with the study of diseases is referred to as pathology. When such a study has to do with plants, it is known as plant pathology.

Mycology is the branch of biology that has to do with the study of fungi, phycology deals with the study of algae, while agronomy deals with the study of economically important crops.

Hence, the correct option is C.

In Meiosis, the cells produced are what?

Answers

Answer:

daughter cells

Explanation:

sorry have to write for 20 characters

Here is a food web:



Which of these correctly describes what the arrow stands for?

a. Eats

b. Gets energy from

c. Provides energy to

d. Depends on

Answers

Answer:

Mark me Brainliest

C. Provides energy to

IN YOUR OWN WORDS, what is the definition for color blindness (include what is special about how this is inherited)

Answers

Answer:

Color blindness is the inabiliy to see certain colors of the color spectrum. This disease is hereditary and passed down from your parents.

Explanation:

Answer:

Explanation:

Yes

Please I need help with this

Answers

Answer:

nucleus : control activities in the cell. 2, vacuoles: it allows substances in and out of the cell.

which example best shows that the chemisty of water is helpful to plants​

Answers

yea same the answer above is correct

Which statement is true of gravity?

A. gravity takes up space

B. everything that has mass, has gravity

C. gravity can be seen

Answers

B. Everything that has mass, has gravity

what is photosynthesis​

Answers

Answer:

Photosynthesis is the conversion of light energy into chemical energy by plants and other creatures, which is subsequently released to fuel the organism's metabolic activities through cellular respiration.

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

Hope it helps...

Have a great day!!

Answer:

the process by which the green plants use cardboard dioxide and water in the presence of Sunlight and chlorophyll to simple carbohydrates and release oxygen is called photosynthesis

What process occurs during transcription? (2 points)
Synthesis of proteins that are coded for by mRNA
Copying of DNA to form an mRNA strand
Replication of DNA to produce a complementary DNA strand
mRNA folding up by forming complementary bonds with itself

Answers

Answer:

Copying of DNA to form an mRNA strand

Explanation:

In transcription, DNA is copied to form an mRNA strand with complementary bases.

The DNA strand being copied during the process is called the template strand, and the mRNA that is made will be created from that strand.

This is the first step of protein synthesis.

This strand of mRNA is further used during translation, where it is used to code for amino acids to make proteins.

So, the correct answer is Copying of DNA to form an mRNA strand

Answer:  The correct answer is Copying of DNA to form an mRNA strand

Explanation:  Confirmed correct

Someone please help, the question is down below

Answers

Answer:

AGU

Explanation:

AGU and AGC are the two codons that code for the amino acid, Serine. These codons are made of three nucleotides, thus they have a triplet nature. AGU that code for serine is made of Adenine, Guanine and Uracil joined together, carried on the messenger RNA to be added to the growing polypeptide chain

2)
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A
B
C
Which of the molecules above is a tRNA molecule?
none of the above.
A
Ծ Ծ Ծ Ծ
C
B

Answers

Answer:

B

Explanation:

Transfer RNA (tRNA) is an RNA molecule involved in the process of translation by which cells synthesize proteins. These molecules (tRNAs) have 76-90 nucleotides in length which form characteristic stem-loop structures, and they are considered adaptor molecules because tRNAs serve as the physical link between the messenger RNA (mRNA) and specific amino acid residues of the growing polypeptide chain. A tRNA is composed of a trinucleotide region (i.e., the anticodon region) that binds to the codon in the mRNA, and a region that attaches to a specific amino acid in order to transfer it to the ribosome, where protein synthesis takes place.

Answer:

b

Explanation:

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Question 2 of 10
of the places listed, where would you expect to find the lowest air pressure?

Answers

Answer:

The lowest measurable sea-level pressure is found at the centers of tropical cyclones and tornadoes, with a record low of 870 mbar (87 kPa; 26 inHg).

Answer:

if these are your choices:
desert
beach
sea level
mountaintop

its mountaintop

Explanation:

what part of a glucose molecule provides electrons in cellular respiration?

Answers

Answer:

Hydrogen atoms are the part of the glucose molecule that provides electrons in cellular respiration.

OAmalOHopeO

Hydrogen atoms are the part of the glucose molecule that provides electrons in cellular respiration. (b) Electron transport complexes set up a proton gradient by passing protons from the mitochondrial matrix to the intermembrane space. NADH gives up the two electrons it carries to NADH hydrogenase.

Answer fast pleAse i really need the help

Answers

Answer:

Due to different reproduction methods.

Explanation:

Organisms from eubacteria, plantae and animal kingdom are used different reproductive strategies which leads to genetic diversity. Bacteria use asexual reproduction which produces identical offspring while on the other hand, plants and animals use sexual reproduction that produces offspring that is different from plants which leads to variation in the organism so that's why we can say that different reproductive strategies is responsible for genetic diversity.

Many plant pathologists believe that plant resistance is based upon the interplay of different signaling molecules? Justified.

Answers

Answer:

Yes.

Explanation:

Many plant pathologists believe that plant resistance is based upon the interplay of different signaling molecules because plants have various signaling molecules that plays a great role in their growth and development. Ethylene, auxin, cytokinins, gibberellins, and abscisic acid are the growth regulators that controls the growth of plants in different conditions i.e. in resistance. These signals leads the plant to take measures in difficult situations experience by the plants so in this way the plant is resistance to the harsh environmental condition.

Explain why chewing of boiled rice in the mouth for two minutes is chewing change?​

Answers

Answer:

The rice changes form inside of the mouth when chewing

What does it mean to analyze data?

Answers

Data exploration
Biological analysis approaches produce comprehensive, high-level summaries of the biology most significantly affected in an experiment. These can include molecular networks, disease processes and biological pathways.


I think this the answer

Answer:

The process of examining, cleaning, converting, and modeling data with the purpose of uncovering relevant information, informing conclusions, and assisting decision-making is known as data analysis.

OAmalOHopeO:

Which term is defined as a coral reef that originally formed around the edges of a volcanic island?

a mid-ocean ridge

a continental margin

an atoll

a submarine canyon

Answers

Answer:

an atoll

Explanation:

the circular type known as the an atoll forms around the edges of a volcanic island

A)Exons 2 and 3 must have the same number of nucleotides. B)Exons 2 and 3 must contain an integral number of codons (that is, the number of nucleotides divided by 3 must be an integer). C)Exons 2 and 3 must contain a number of nucleotides that when divided by 3, leaves the same remainder (that is, 0, 1, or 2). D)Exons 2 and 3 must have different numbers of nucleotides. Multiple Choice

Answers

Answer:

Statement C is the only one that is necessarily true for exons 2 and 3. It is also true for exons 7 and 8. While statements A and B could be true, they don’thave to be. Because the protein sequence is the same in segments of the mRNA that correspond to exons 1 and 10, neither choice of alternative exons (2 versus 3, or 7 versus 8) can alter the reading frame. To maintain the normal reading frame—whatever that is—the alternative exons must have a number of nucleotides that when divided by 3 (the number of nucleotides in a codon) give the same remainder. Since the sequence of the a-tropomyosin gene is known, it is possible to check to see the actual state of affairs. Exons 2 and 3 both contain the same number of nucleotides, 126, which is divisible by 3 with no remainder.

All wrong answers will be deleted and reported. Plz give me the right answer!! Meningitis causes inflammation of the:

a.)skin
b.)digestive tract
c.)respiratory system
d.)brain and spinal column

TY for your help

Answers

The answer is D.

Inflammation of the fluid and membranes surrounding your brain and spinal column.

Answer:D.

Inflammation of the fluid and membranes surrounding your brain and spinal column.

Explanation:

What keeps the Sun from expanding any further? A. Solar wind B. Hydrogen C. Gravity D. Visible light

Answers

Answer: The answer is B. Hydrogen.

Explanation:

do you think each form of water is emportant? why?​

Answers

Answer:

yes, because Water is very important to the human body. Every one of your cells, organs and tissues use water to help with temperature regulation, keeping hydrated and maintaining bodily functions.

Answer:

yes

Explanation:

because Water is very important to the human body. Every one of your cells, organs and tissues use water to help with temperature regulation, keeping hydrated and maintaining bodily functions.

help asap if possible!

what were the four key concepts of Darwin's theory of natural selection?

then explain how Lamarck's theory was different and why it got rejected over time?

Answers

i only know the answer to the first one. the four key concepts are variation in each human, inheritance is passed down from generation to generation, that more offspring are produced than what the world can support, and survival of the fittest, i believe

Determine which of the following statements is true about energy in ecosystems. A. Producers are able to convert 40% of the sun’s energy into chemical energy. B. 30% of the sun’s energy cannot be absorbed by producers because it is in the wrong wavelength of light. C. Producers only absorb 40% of the sun’s energy, most of which is lost during photosynthesis. D. Producers absorb 5% of the sun’s energy, and reflect 5% of the sun’s energy.

Answers

Answer:

A. Producers are able to convert 40% of the sun’s energy into chemical energy.

Explanation:

Energy in an ecosystem must be transferred in the ecosystem. The primary source of energy in an ecosystem is the sun. The terrestrial ecosystem mostly consists of plants and marine ecosystems. As energy flow in an ecosystem is unidirectional. It passed from the organism from one tropic level to another. Only 10% of the energy is available to them.

Answer:

Its C

Explanation:

Jaleel and Lisa are simplifying the expression 2 (x minus 2) + 2 as shown. Jaleel's Method 2 (x minus 2) + 2 = 2 x minus 4 + 2 = 2 x minus 2 Lisa's Method 2 (x minus 2) + 2 = 2 x minus 2 + 2 = 2 x

Answers

Answer:

Jaleel is correct

Explanation:

Given

[tex]2(x - 2) + 2[/tex]

Jaleel

[tex]2(x - 2) + 2 = 2x - 4 + 2 = 2x - 2[/tex]

Lisa

[tex]2(x - 2) + 2 = 2x - 2 + 2 = 2x[/tex]

Required

Who is correct

Analyzing the solutions

For, Jaleel; we have:

[tex]2(x - 2) + 2 = 2x - 4 +2[/tex] --- this is correct

[tex]2(x - 2) + 2 = 2x - 2[/tex] --- this is correct

For Lisa, we have:

[tex]2(x - 2) + 2 = 2x - 2+2[/tex] --- this is incorrect because:

[tex]2(x - 2) + 2 \ne 2x - 2+2[/tex]

Hence, Jaleel is correct

Answer:

d

Explanation:

Interphase plays an important role in preparing a cell to divide. Which of the following events takes place during interphase?
A. The cell copies its DNA and grows.
B. DNA and proteins condense into tightly coiled chromosomes.
C. Spindle fibers attach to each chromosome and align them along the cell equator.
D. Cytokinesis takes place, dividing the cytoplasm between the two daughter cells.

Answers

The correct answer is A. In the first step of Mitosis, the Interphase is when the DNA is copied and the cell grows. A.

Describe the phases of mitosis and meiosis that are similar. What happens in these phases?

Answers

Mitosis and meiosis experience both the same process. Their step by step phases are prophase, prometaphase, metaphase, anaphase, and telophase. What can happen is DNA replication & condensetion
Aside from these two distinct purposes, both mitosis and meiosis occur in multiple stages during which the same general things happen: DNA replication and condensation, nuclear membrane degradation, spindle formation, chromosomal segregation and nuclear reformation.
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