Answer:
Bacteria start to die, thereby changing the dye concentration in the medium and producing different colors
Explanation:
Bacillus cereus are Gram-positive, rod-shaped bacteria that form orange-pink colonies in agar media (e.g., BACARA medium, which is used for detection and enumeration of B. cereus). In this case, it is expected that after a long time without taking care of the culture, the bacteria started to die. Subsequently, lysed bacterial cells lost their dye which accumulated in some areas of the medium, thereby showing different colors ranging from an intense blue (areas with dead bacteria) to shades of pink (areas with bacteria still alive and viable).
The color of some colonies are changing bacause of long incubation due to death of bacteria.
Bacara agar medium:
It is used for detection and enumeration of B. cereus. Bacteria gives orange-pink colonies in the media.
This detection method only detects the live bacteria, but here bacteria are dieing because of lake of food in media.
Therefore, the color of some colonies are changing bacause of long incubation due to death of bacteria.
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a short essay explaining how an earthquake below the ocean floor can affect the seas near the earthquake area.
what type of bond is formed when oxygen combines with hydrogen to form water
Answer:
water is a covalent compound consisting of hydrogen and oxygen . it contains Single covalent bond
One reaction has ΔG = -16.4 kcal/mol. Another has ΔG = 10.3 kcal/mol. Can these two
reactions be coupled so that the energy released by one is used to drive the other? Explain your
reasoning
Explanation:
I needs points plz dont report my answer
Which of the following structures are found in all living cells? (Select all that apply.)
Answer:
cell membrane, DNA and RNA, cytoplasm, and ribosomes
Explanation:
Select all that apply
What organs make up the peripheral nervous system?
Multiple select question.
Cranial nerves
Spinal cord
Brain
Spinal nerves
You are curious about the dynamic instability of microtubules and decide to join a lab that works on microtubule polymerization. The people in the lab help you grow some microtubules using conditions that allow you to watch individual microtubules under a microscope. You can see the microtubules growing and shrinking, as you expect. The professor who runs the lab gets in a new piece of equipment, a laser beam that is very fine and can be used to sever microtubules. She is very excited and wants to sever growing microtubules at their middle, using the laser beam.
a. Do you predict that the newly exposed microtubule plus ends will grow or shrink? Explain your answer.
b. What do you expect would happen to the newly exposed plus ends if you were to grow the microtubules in the presence of an analog of GTP that cannot be hydrolyzed, and you then severed the microtubules in the middle with a laser beam?
Answer:
Follows are the explanation to the given points:
Explanation:
The polymerization of αβ-tubulin ligands costumes the microtubules. Among rising or reducing processes a microtubule may oscillate. Part of the carbon is a polar framework for two separate ends: a rapidly growing, most ending as well as a slow-growing less end.
In point a:
Severing a mitochondrial membrane throughout the media will create new "plus ends" or "minus ends." when mentioned in the question Then microtube is more prone to growth at most by adding GTP sub-units to some of the most open regions, where β-tubulin is activated. Even so, for some time GTP has also been hydrolyzed, keeping only one cap of the newly created, higher-end GTP-carrier subunits together with the remaining GDP-carrying cylindrical cap.
Consequently, a positive end is developed that consists of GDP subunits. Because the GDP sub-units become less strictly connected than that of the GTP sub-units, they eventually separate from one another. This allows a microtubule to be polymerized which causes the microtubule will shrink. But the newly exposed microtubule and sides will shrink if cut throughout the center.
In point b:
Well if the equivalent of GTP with such a microtubule is separated by laser from a non-hydrolyzable one, the newly exposed plus finish will include GTP carries. This GTP was NOT supplied with both the GDP kinase but would still expand the mitochondrial membrane. The unburned GTP plus microtubule will therefore continue to grow once it is cut in the center. The GTP equivalent is not hydrolyzable.
Which of the following is the best evidence that supports the rule that only 10% of energy is transferred from one organism to another? (1
There are fewer organisms at the top of the food chain because there is less energy available for life processos
O Ten percent of organisms are fully consumed while others contain some molecules that cannot be digested
Not all organisms at the lower trophic levels will be eaten and die
O Dead organisms and waste are broken down by decomposers and are recycled through the ecosystem
Answer:
I believe the answer is A
Explanation:
There are fewer organisms at the top of the food chain because there is
less energy available for life processes is the best statement that supports
it.
What is Trophic level?This is the position an organism occupies in a food chain. The organisms
are usually fewer while those at the bottom have more organisms present
in the chain.
As food chain moves from bottom to the top, the energy level decreases
which depicts 10% of energy is being transferred from one organism to
another
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What is Criteria in the classification of fungi?
Answer:
The classification of fungi relies mostly on morphological criteria such as the pigmentation, shape of hyphae, presence or absence of septa and types of spores.
Easy question
Scenario: Nasa has been sending different animals to Mars and found that all thrive. This time, they want to experiment with humans. As a reward to the first voulnteer, they will own thousands of acres of land on Mars
Will you volunteer to be among the first human occupant on Mars? Why or Why not?
Answer:
I would volunteer to be among the first humans to occupy mars, as I would go down in history forever. Additionally if i didn't want the thousands of acres I could just sell them and make money that way. I think people who are fascinated with space would be more eager to volunteer than me tho
Explanation:
Why do scientists use light-year instead of Astronomical Units to measure the distances between stars?
Answer:
well AU is only for inside a star system and the number of AU would be too high, so light years are easier its like saying ur 6 feet instead of 72 inches or in centimeters
Explanation:
Which one of the following m-RNA codons codes for a stop sequence?
a .AGU b.UGC c.UUU d. UGe e. none of these
Consider, pea plants, for which green color is dominant to yellow color, and two leaves are dominant to three. A cross between two plants that are heterozygous green and heterozygous tall is completed. What is the phenotypic ratio? 1:1:1:1
9:3.3:1
1:3:3:9
9:1:3:3
Answer:
The phenotypic ratio is 9:3:3:1
Explanation:
Available data:
green color (G-) is dominant to yellow color (gg)G allele is dominant. g allele is recessivetwo leaves (T-) are dominant to three (tt)T allele is dominant, t allele is recessiveCross: between two plants that are heterozygous green and heterozygous tall
Parentals) GgTt x GgTt
Phenotype) Green color Green color
Two petals Two petals
Gametes) GT, Gt, gT, gt GT, Gt, gT, gt
Punnett Square) GT Gt gT gt
GT GGTT GGTt GgTT GgTt
Gt GGTt GGtt GgTT Ggtt
gT GgTT GgTt ggTT ggTt
gt GgTt Ggtt ggTt ggtt
F1) Genotype:
1/16 GGTT
2/16 GGTt
1/16 GGtt
2/16 GgTT
4/16 GgTt
2/16 Ggtt
1/16 ggTT
2/16 ggTt
1/16 ggtt
Phenotype:
9/16 G-T- --> Green-colored and two-leaved plant
3/16 G-tt ----> Green-colores and three-leaved plant
3/16 ggT---> Yelow-colores and two-leaved plant
1/16 ggtt ---> Yeloow-colores and three-leaved plant
Some plants produce fruit which contains their seeds. How does producing fruit benefit the plant?
Answer:
The Answer is B
Explanation:
I got it right on my Bio hw
animal often carry the seeds away from parent when they eat fruit is a type of seed dispersal.
what is seed dispersal ?Seed dispersal can be defined as the process where the movement and spread of seed away from the parent plant by different carrier
Dispersing seeds there is less competition between seeds and The act of seed dispersal includes three phases such as departure, transfer and settlement
There are five different dispersal mechanism such as wind (anemochory) water (hydrochory), gravity (barochory), ballistic and dispersal done by animals (zoochory).
the most effective method was the zoochory, but today the most effective seed dispersal is the seed dispersal done by humans, because of the big technology boom.
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Explain how these terms work together IN TRANSLATION: mRNA, tRNA, codon, amino acid, and protein.
please help :( this assignment is due soon...
Answer:
The mRNA leaves the nucleus and travels to the ribosome where proteins are synthesized
Explanation:
During transcription, a messenger RNA (mRNA) molecule is synthesized from a specific DNA region which is referred to as a gene. Subsequently, the mRNA leaves the cell nucleus through the nuclear pores of the nuclear membrane and travels to the ribosome, where this sequence serves as template to synthesize a protein, in a process known as translation. Within the ribosomes, triplets of consecutive RNA nucleotides called codons bind to complementary RNA nucleotides (called anticodons) of the transfer ribonucleic acids (tRNAs). Each tRNA attaches a specific amino acid that corresponds to its anticodon sequence, which is then added to the nascent polypeptide chain.
Agriculture has only a positive impact on the land.
True or False?
False; Agriculture can negatively impact the environment when fertilizer enters the water, contaminating it. Agriculture can also lead to deforestation, the lack of trees will lead to erosion.
Explain how the muscle and two parts of the bone that helps to maintain homeostasis. Also,
explain how the muscle contracts.
Answer:
Sorry but I don't know sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry
Of the following biomes which receives the most solar energy?
Grasslands
Tundra,
Tropical rain forest
Coniferous forest
Answer:
C
Explanation:
Explain why methicillin resistant Staphlococcus aureus (MRSA) is more prevalent now than it was only 30 years ago. See Section 1.7 (Page) . Explain why methicillin resistant Staphlococcus aureus (MRSA) is more prevalent now than it was only 30 years ago. See Section 1.7 (Page) . Methicillin resistance causes an infection to spread more rapidly. Antibiotics cause mutations in Staphlococcus aureus that lead to an increase in the number of methicillin-resistant strains. Frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of Staphlococcus aureus. Diseases like AIDS have made people more vulnerable to infections from Staphlococcus aureus.
Answer: Frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of Staphlococcus aureus.
Explanation: The methicillin resistant Staphlococcus aureus is an example of the Theory of Evolution explained by Darwin. He stated that evolution is brought by 3 principles: Variation - the variety of species allows them to adapt better in the environment; Heridity - when those characterists necessary for survival passes on to the next generation; Natural Selection - the organism which is the most adapted to the environment survives to passes on their characteristics;
In a strain of Staphlococcus aureus, there are strains which are resistant to the antibiotics. The constant use of the medicament, and sometimes, the misuse of it, can select those strains which are resistant. As these characteristics are crucial for their survival, they are passed on to the next generation.
This is why the rate of methicillin-resistant Staphlococcus aureus has increased along the years.
What are the 3 ways to dissolve a solute in a solvent? HELP!
Dissociation
Ionization
Aspiration
Dispersion
Answer:• Apply a strip of masking tape, about 3 inches long, to the outside of each jar. Label each vial in writing on the masking tape with the marker. Write the following labels: hot water, cold water, RT water, vinegar, alcohol.
• Add 1 cup of the appropriate liquid to each of the labeled jars. Wear eye protection when working with vinegar or alcohol.
• Add 2 tablespoons of sugar to the pitcher of cold water. Immediately start the stopwatch and begin to stir slowly until all the brown sugar is dissolved. Record how long the process took.
• Add 2 tablespoons of sugar to the jug of hot water, start the timer and stir the liquid at the same rate as in step 1 until all the brown sugar is dissolved. Write down how long it takes.
• Repeat the process of adding the sugar, stirring, and the time it takes for all the sugar to dissolve for the jugs of room temperature water, alcohol, and vinegar.
• Compare your results. Does sugar dissolve faster or slower from one solvent to another? Does sugar completely dissolve in each solvent? How did the temperature of the water affect the time it took for the sugar to dissolve?
Explanation:
How does carbon dioxide leave the atmosphere?
Explain in simple terms the function of each organelle. Use these terms:
Nucleus _______
Mitochondrion _______
Ribosome _______
Cell membrane _______
Smooth endoplasmic reticulum _______
Rough endoplasmic reticulum _______
Golgi apparatus _______
Cytoplasm _______
Answer:
The nucleus is the control center of the cell.
The mitochondrion creates energy for the cell (powerhouse).
Ribosomes create proteins (protein synthesis).
The cell membrane is a barrier that lets certain molecules in and out of the cell.
The smooth endoplasmic reticulum is involved in metabolic processes such as synthesizing lipids.
The rough endoplasmic reticulum contains ribosomes that make proteins.
The golgi apparatus packages molecules (usually for exportation).
The cytoplasm gives the cell its shape and supports the organelles.
Explanation:
I can explain it in more detail if you would like :)
as a
A cell with half the number of chromosomes (n) a
2n cell.
A. exons
B. operon
C. genome
D. diploid
E. nucleosome
F. recessive
G. restriction enzyme
H. haploid
I. dominant
J. gel electrophoresis
Answer:
H. Haploid
Explanation:
A cell that contains two of each chromosome, or 2n, is a diploid. If a cell has half of those chromosomes, or just n, it is a haploid.
Two rhinoceros beetles have different parents.They have different shape horns.why do the beetles have differently shape horns.
Answer:
because they have different genes
Explanation:
when animals mate or reproduce the parents share each other genes to make thr offspring when that accurse different beetles can have different genes that could code for longer horns or shorter. Their could also be a mutation.
Mutualism relates to which of the following relationships?
Answer:
A
Explanation:
Answer:
A. both organisms benefit
Explanation:
the process of taking gaseous carbon dioxide or oxygen by leaves is termed
Answer:
photosynthesis
as in the process of photosynthesis plants take in carbon dioxide and give out oxygen.
hope it helps you
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The process of taking gaseous carbon dioxide or oxygen by leaves is termed peristomal diffusion or diffusion through stomata present on leaves.
Plants take up carbon dioxide or oxygen from the air through their leaves as they have several stomata on their surface. The small holes or openings in the underside of the leaf are called stomata.
Diffusion through stomata also helps oxygen, produced in photosynthesis, to leave the leaf.The diffusion of gaseous carbon dioxide or oxygen is proportional to the concentration difference between the atmosphere and leaves.The loss of water vapor in transpiration also occurs through stomata.peristomal diffusion or diffusion through the leaves allows the gaseous exchange.Thus, the correct answer is - peristomal diffusion or diffusion through stomata present on leaves.
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Is colorblindness inherited from a persons parents or do they get it from the environment?
Answer:
The most common kinds of color blindness are genetic, meaning they're passed down from parents. If your color blindness is genetic, your color vision will not get any better or worse over time. You can also get color blindness later in life if you have a disease or injury that affects your eyes or brain.
Answer:
yes ,mostly colorblindness is inherited
Psychology. A group of scientists have created a new drug X that helps with anxiety.what is your hypothesis?
Answer:
The correct answer would be - hypothesis would be "If Drug X treats anxiety, then people who have anxiety and take Drug X should stop having symptoms.”
Explanation:
A hypothesis is an assumed or purposed explanation for a phenomenon on the basis of the available evidence at the beginning of the investigation. It required a scientific method to check if the hypothesis is true or not.
In the given case the most accurate hypothesis would be based on the fact that the drug X is helpful in case of anxiety and if it really helps such a patient then this drug should stop symptoms of anxiety.
Drag the appropriate descriptions of the subatomic particles into the following boxes. Labels may be used more than once.
Answer:
Protons: Found in Nucleus, +1
Neutrons: Found in Nucleus, Electrically Neutral
Electrons: Found in Orbitals, -1
Explanation:
The subatomic particles corresponding to specific properties are shown below;
Found in the nucleus;
ProtonsNeutronsFound in orbitals surrounding the nucleus;
ElectronsElectrically neutral
Neutrons
+1
Protons-1
ElectronsThe atom is composed of subatomic particles such as electrons, protons and neutrons.
The protons and neutrons are found in the nucleus. The proton has a charge of +1 while the neutrons have no charge.
The electrons orbit the nucleus and has a charge of -1.
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If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
We have that for the Question "If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made." it can be said that
the possible ratios of boys to girls that could be made are
21:421:210:205:10And any ratio that gives a ha
From the question we are told
If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
Generally the equation for the Ratio is mathematically given as
x=21:42
Therefore
21:42
1:2
10:20
5:10
Therefore
the possible ratios of boys to girls that could be made are
21:421:210:205:10And any ratio that gives a half
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What is the frequency of this wave?
2
03
4
Answer:A 1 or 2
Explanation:
Answer:
Irregular because of lines passing each other