Two specimens, A and B were inoculated into Urea broth. What can you conclude from your observations? Based on your observation of the pictured Urease tests, select ALL appropriate statements. a. Bacterium A ferments lactose b. Bacterium A converted urea to ammonia c. Bacterium A increased the pH of the medium d. Bacterium B ferments lactose e. Bacterium B converted urea to ammonia
f. Bacterium B decreased the pH of the medium g. Bacterium B does not produce urease
Answers
The appropriate statements about the observations that can be selected from the given options are: B,C,E and F.
Conclude the observationsThe observations made from the inoculation of two specimens A and B into Urea broth are as follows:
Bacterium A converted urea to ammoniaBacterium A increased the pH of the mediumBacterium B converted urea to ammoniaBacterium B decreased the pH of the mediumBacterium B does not produce ureaseTherefore, the appropriate statements that can be selected from the given options are:
b. Bacterium A converted urea to ammonia.
c. Bacterium A increased the pH of the medium.
e. Bacterium B converted urea to ammonia.
f. Bacterium B decreased the pH of the medium.g. Bacterium B does not produce urease.
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Related Questions
If you answer this i'll mark you as brainliest (I don't think it should need context)
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¿todavía necesitas ayuda o es demasiado tarde?
this word is defined as all the living organisms on earth along with the physical environment in which they live.
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Ecosystem is word is defined as all the living organisms on earth along with the in physical environment which they live .
Ecosystem is considered as community of organisms together with their physical environment. Ecosystems comprises of different sizes and can be marine, aquatic, or terrestrial.
Ecosystem can also be termed as collection of all living organisms in a geographic area, together with all the living and non-living things that interact with each other. Living components of the environment are known as biotic factors. Biotic factors include plants, animals, and micro-organisms.
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Question 2
argues that the propensity for crime commission evolved as part of the male
reproductive strategy and a particular neurochemistry characteristic of males increases the
probability of male criminality.
O Neuroplasticity theory
O Evolutionary neuroandrogenic theory
OThe gender ratio problem
O Epigenetics
Answers
The argues that the propensity for crime commission evolved as part of the male reproductive strategy and a particular neurochemistry characteristic of males increases the probability of male criminality. The concept of is Evolutionary neurocardiogenic theory explains the evolution of such behavior's and tendencies.
The Evolutionary neurocardiogenic theory is an extension of the Evolutionary psychology theory that asserts that mental mechanisms have evolved and continue to evolve to tackle recurrent and essential problems that our ancestors faced, such as survival, reproduction, and group cohesion.
Men may engage in various forms of aggression, including crime, to ensure that they are adequately positioned in the social hierarchy and gain access to limited resources, such as fertile women and territory. The neurocardiogenic perspective posits that the cardiovascular system plays a critical role in male aggressive behavior's and male criminality. An increase in the levels of testosterone in the male body leads to an increase in heart rate and blood pressure, which can result in elevated levels of aggression and crime.
To conclude, the Evolutionary neurocardiogenic theory explains the evolution of crime commission as part of male reproductive strategy. This theory suggests that males tend to engage in criminal activities to ensure that they are adequately positioned in the social hierarchy and gain access to limited resources such as fertile women and territory.
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Have you ever had growing pains in your leg? How do you think the cell cycle impacts this growth?
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The cell cycle impacts a growing pain in the leg by repairing the tissues around the affected area.
What is the cell cycle?The cell cycle refers to the alternation of vegetative or sex cells across the different phases of the cell's life cycle. The different phases of the cell's life cycle include the interphase and the m phase.
The interphase is a phase filled with different activities such as cell growth, DNA, and protein synthesis in preparation for active division.
The m phase is the active division phase in which cells divide into two daughter cells. Through vegetative cell division, tissue repairs occur. Pain in the leg is likely to be due to damage to the tissues around the region affected.
The cell cycle, therefore, impacts a growing pain in the leg through the division of the cells of the affected tissues in order to repair and alleviate the pain.
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Describe the type of plate movement that is occurring where subduction zone volcanoes are found.
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Answer:
Convergent boundary
Explanation:
It's when the plates move together and subduction occurs when one plate moves underneath another on a convergent boundary. Volcanoes are found there.
P.S. Brainliest, please?
Which of the following is an example of a producer-consumer
relationship?
productor?
Worm --> Bird
Leaf --> Tree
Fish --> Bear
Grass --> Deer
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Answer:
Grass and Deer
Because Grass is consumer and Deer is producer
are there any element or molecule that oxygen reacts violently to
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Discussion 1. What percentage of asci observed resulted from the fusion of cells from different strains? 2. What percentage of those asci resulting from the fusion of different strains demonstrates crossovers?
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During the study of genetics and inheritance, it is important to observe the sexual cycle of fungi to determine the genetic variations within the offspring. In the 1920s, T. H. Morgan and his colleagues used fungal genetics to test the hypothesis of the existence of recombination. For instance, they observed the sexual cycle of the common bread mold, Neurospora crassa, to investigate how crossing-over occurs between homologous chromosomes during meiosis.
As a result of their investigation, Morgan and his colleagues discovered that, during meiosis, four haploid ascospores are produced within a specialized sac called an ascus. These ascospores are produced when two nuclei from two different hyphae (cells) combine and fuse together.
This fusion creates a cell with two haploid nuclei, which subsequently undergoes meiosis to create four haploid ascospores. Hence, an ascus will contain four haploid ascospores produced by a single diploid cell resulting from the fusion of two haploid cells.
The percentage of asci observed that resulted from the fusion of cells from different strains is 100%. This is because the fusion of haploid cells from different strains is essential for the production of a diploid cell that will then undergo meiosis to form four haploid ascospores.
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give me an example of an acute, obtuse, and right angle in real life....
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Answer:
ummmm..... Ur moms legs opening wide
Explanation:
Answer:
A fat women she has all the angles in her
Explanation:
How would we interpret a p value of 0.20 resulting from a chi-square test for goodness of fit performed with data from a two-factor cross?
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A p-value of 0.20 resulting from a chi-square test for goodness of fit performed with data from a two-factor cross indicates that there is no statistically significant difference between the observed and expected values at the chosen level of significance.
The p-value is the probability of obtaining the observed test statistic or a more extreme result if the null hypothesis is true. In this case, the null hypothesis would be that there is no significant difference between the observed and expected values. A p-value of 0.20 means that there is a 20% chance of obtaining the observed result if the null hypothesis is true. If the chosen level of significance is 0.05, which is common in many fields, then the p-value of 0.20 is greater than the significance level, indicating that we fail to reject the null hypothesis. In other words, there is no evidence to suggest that the observed values are significantly different from the expected values, and any differences can be attributed to chance. It is important to note that the interpretation of the p-value should always be done in the context of the specific experiment and the chosen level of significance.
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Please help me to elaborate this question.
How did History and Philosophy of Science (HPS) minimize the "fragmented" learning of the energy concept based on the empirical results?
Answers
HPS provided a holistic approach to studying the energy concept by integrating historical and philosophical perspectives, overcoming fragmented learning.
The history and philosophy of science (HPS) has played a crucial role in minimizing the fragmented learning of the energy concept by providing a holistic approach to its study. Traditionally, the teaching of energy in science classrooms has often focused solely on empirical results and mathematical equations, neglecting the historical and philosophical dimensions that surround the concept.
By incorporating HPS into the study of energy, students gain a deeper understanding of its development over time, the societal and cultural influences that shaped its understanding, and the philosophical underpinnings that guide its use and interpretation. This approach helps students see energy as more than just a mathematical formula or a set of isolated phenomena.
By examining the historical context, students can appreciate the gradual evolution of the energy concept, the controversies and debates that arose, and the scientific advancements that led to our current understanding.
By integrating historical and philosophical perspectives, HPS minimizes the fragmented learning of energy by offering a comprehensive understanding of the concept, enabling students to see its interconnectedness with other scientific ideas and its relevance to broader human knowledge and inquiry.
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The fossil at point X has been dated to be 65 million years old. What can
relative dating indicate about the fossil at point Y? *
A) The distortion of organism by the fault
B) The type of environment the organism lived in
C) The age of the organism when it died
D) The similar time period in which the organism lived
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Answer:
D.The similar time period in which the organism lived
How many chlorine atom are on the product ide of the reaction 2Al 6HCl → 2AlCl3 3H2?
2
3
6
9
Answers
Six chlorine atoms make up the chemical product 2Al + 6HCl → 2AlCl3 + 3H2 product ion.
The fundamental unit of matter, the atom, is regarded as such.The smallest unit of matter that may be split without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics.
Al CHl stands for aluminum chloride, H2 for hydrogen gas, and HCl for hydrochloric acid in this instance.
Aluminum reacts with hydrochloric acid in the example.
Aluminum chloride and hydrogen gas are the byproducts of the reaction 2Al + 6HCl → 2AlCl3 + 3H2
Calculating the number of chlorine atoms in the reaction's result indicates that there are 2*3=6.
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Which of the following occurs during inhalation?
The volume of the thoracic cavity decreases.
Air moves from areas of low pressure to areas of high pressure.
The ribcage lowers.
The diaphragm moves downward.
Answers
Answer: D
Explanation:
All of the following are nucleotides found in DNA except for one. Which one does not belong with the others?
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The deoxyribose sugar, phospate molecule, and one nitrogenous base from adenine, guanine, thymine, and cytosine make up the nucleotides that form the DNA strands. Uracil is never found in a DNA nucleotide. Tyroxine does not exist in nucleotide.
Adenine, guanine, cytosine, thymine, uracil, a sugar molecule, and one phosphoric acid molecule make up a nucleotide. A nucleotide is made up of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Phospholipids are not found in nucleotides. Ribose and its related chemical, deoxyribose, are the building blocks of nucleic acid backbone chains, often known as DNA and RNA.
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The disorder shown on the pedigree is Maple Syrup Urine Disease (MSUD) which is a metabolic disorder that affects the body's ability to progess certain proteins. It was named after a distinctive odor of a baby's urine. 1. What is the inheritance pattern of this gene?
a) autosomal dominant
b) autosomal recessive
c) X-Iinked dominant
d) X-Iinked recessive
2. Provide at least one piece of evidence for your claim
Answers
Maple syrup urine disease (MSUD) is an autonomic recessive disease (Option b). It is only expressed when there are two defective alleles.
What is Maple syrup urine disease?Maple syrup urine disease is an inherited genetic condition that is inherited in an autosomal recessive manner.
This condition is recessive because the presence of a dominant allele is enough to mask the recessive phenotype.
Maple syrup urine is a genetic disease is associated with a faulty oxidative decarboxylation of alpha-keto acids, which are derived from different amino acids (i.e., valine leucine, isoleucine).
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What is weight measured in
A grams
B Kilograms
C Metric Tons
D pounds
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Concept: Unit Representation
You have weight which is commonly represented in SI units of KG In the US metrical units are poundsYour answer depends on which metric you are referring to.what is the difference between monomers, polymers, and macromolecules?
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Answer:
Monomer is a word made of two parts, mono means one, and met means unit, so monomers are the building units of the polymers. Macromolecules are polymers, macromolecules in biology refers to the major categories of molecules that make the cell which are the proteins, carbohydrates, lipids and nucleic acids.
A population of rabbits follows the typical pattern of inheritance and the law of dominance for fur color. B is the allele for brown fur and b is the allele for white fur. In a population of rabbits, 160 bunnies are born. How many bunnies should be white, according to the Punnett square? A) 40 B) 60 80 D) 100
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After completing the punnet square you find that 1/4 of the bunnies will have white fur since white fur is recessive and would only be characterized if no dominant genes are present
1/4 of 160= 40
uncontrolled cell division can lead to the formation of masses of cells that can remain in place called ____ tumors or ones that can move called ___ tumors
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Answer:
Uncontrolled cell division can lead to the formation of masses of cells that can remain in a place called primary tumors or ones that can move called metastatic tumors.
Explanation:
The term primary tumor refers to the original tumor, a place where the tumor first appeared.
Metastatic tumors are tumors that appear in other organs and originate from the primary tumor. Tumor cells can break away from the primary tumor and travel to other locations in the body through the blood or lymph system and form new tumors. This is how metastatic tumors appear.
For example, a brain tumor is a primary tumor if it first appeared in the brain. A metastatic brain tumor is a tumor that appeared in another organ and then spread to the brain.
Which of the following statements is FALSE?
a.A plant is an example of a eukaryote.
b.Proteins are made by ribosomes.
c.Animal cells have cell walls.
d.Mitochondria produce energy for the cell.
Answers
Answer:
My answer is C.
Explanation:
Because only plant cells have cell wall.
Which human activity would most likely decrease the amount of carbon in the atmosphere?clearing forestsheating coalburning woodplanting trees
Answers
Answer:
It is D. planting trees
Explanation:
Hope this helps
5. how is monera changing?
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Monera, which refers to a now-obsolete kingdom of organisms that included all prokaryotes (bacteria and archaea), is not changing as it is no longer used as a taxonomic classification.
However, the understanding and classification of bacteria and archaea as separate domains of life have changed and continue to evolve as new research and discoveries are made in the field of microbiology.
For example, advances in DNA sequencing technology have revealed previously unknown diversity and relationships among different groups of bacteria and archaea. Additionally, the discovery of new bacteria and archaea that inhabit extreme environments has expanded our understanding of the limits of life on Earth.
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Jan Baptista van Helmont performed an experiment for which he grew a willow tree in a pot for several years, during which time he kept an exact record of changes in the weight of the soil. At the end of his experiment, van Helmont concluded that the main source of the tree's biomass was ______.
Answers
Jan Baptista van Helmont concluded that the main source of the tree's biomass was WATER (H2O). He discovered that photosynthesis requires H2O as a reactant.
Photosynthesis is a series of metabolic reactions by which plants produce simple carbohydrates (i.e., biomass) and carbon dioxide by using sunlight, oxygen (O2) and water (H2O).
Jan Baptista van Helmont partially discovered this mechanism of photosynthesis.
During his experiments, van Helmont observed that most of the mass of a tree had come from H2O, thereby concluding that plants grow by drinking water instead of by eating soil as popularly believed.
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Marissa is testing a hypothesis through experimentation. She believes that immersing ocean coral in carbonic acid will slow the coral’s growth. Which of these actions will prevent Marissa from introducing confounding variables into her experiment?
Answers
Answer:
The answer choices to this question are:
A) She releases cement particles into a random number of the coral samples.
B) She uses three different types of coral to establish her dependent variables.
C) She treats the coral samples identically with varying levels of carbonic acid.
D) She obtains her coral samples from coral reefs surrounding different continents.
Best Answer is:
A) She releases cement particles into a random number of the coral samples.
Theory:
It has been researched that ocean acidification caused by carbon dioxide emissions causes a decrement in the coral reef growth and this will keep slowing down unless steep and rapid reductions in greenhouse gas emissions are made. And the Coral reefs offered economic opportunities would advantage the surrounding communities from fishing and tourism.
i did this question so thats why i know the answer choices
hope this helpsss
Answer: C. She treats the coral samples identically with varying levels of carbonic acid.
Explanation: I just took the test and this is correct
This diagram is a genetic map that shows the relative positions of four alleles
along a chromosome.
Chromosome
H
G
k
p
Which two alleles have the highest probability of being inherited together?
A. G and K
B. H and K
C. G and P
D. H and P
Answers
The two alleles with the highest probability of being inherited together are A. G and K.
To determine which two alleles have the highest probability of being inherited together, we need to analyze the distances between the alleles on the genetic map.
Looking at the diagram, we can see that the alleles G and K are closest to each other on the chromosome. The distance between G and K is shorter compared to the distances between the other alleles. This proximity suggests a higher likelihood of these two alleles being inherited together.
The closer two alleles are on a chromosome, the more likely they are to be inherited together due to a phenomenon known as genetic linkage. Genetic linkage occurs when alleles are located near each other on the same chromosome and tend to be inherited as a unit during the process of meiosis.
It's important to note that the probabilities of inheriting specific allele combinations can vary depending on the frequency of recombination events during meiosis. However, based on the information provided in the genetic map, alleles G and K appear to have the highest probability of being inherited together. Therefore, Option A is correct.
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Explain how to distinguish different species by their DNA.
Answers
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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Which of these is a disadvantage of hydroelectric energy ?
A. Is expensive to build or maintain
B. Has high power plant efficiency
C. Has a long power plant life span
D. Reduces greenhouse gas emissions
Answers
Answer:
A. Is expensive to build or maintain
Explanation:
Hydroelectric energy is a type of energy which is generated from the flow of water. In this energy, water is allowed to fall from a certain height on the turbine. The moving of turbine produces energy. The main disadvantage of hydroelectric energy is that it is very expensive and require high amount of money for the construction and maintenance of hydroelectric power plant. The machinery used for the production of hydroelectric energy is very costly.
Earth is a closed system. That means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on Earth . So, it is essential that biogeochemical cycles these materials as they move through Earth's subsystems.
Answers
Earth is a closed system, which means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on Earth remains constant. So, it is essential that biogeochemical cycles renew these materials as they move through Earth's subsystems.
What are biogeochemical cycles?Biogeochemical cycles may be defined as the flow of chemical elements and compounds between living organisms and the physical environment for the need of each other.
The complete question is as follows:
Earth is a closed system. which means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on earth ___. So, it is essential that biogeochemical cycles __ these materials as they move through earth subsystems.
remains constant, can increase, can decrease.destroy, create, renew.The biogeochemical cycles on the earth's planet are accountable for processing the identical old rocks, metals, carbon, nitrogen, oxygen, water, and other abiotic implications on Earth in order to intrinsically revitalize them and construct them obtainable for reuse for the organisms need.
Therefore, it is well described above.
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Answer:
Earth is a closed system. That means the amount of rocks, metals, carbon, nitrogen, oxygen, and water on Earth remains constant. So, it is essential that biogeochemical cycles renew these materials as they move through Earth's subsystems.
Explanation: ed mentum or plato
Which features are found only in eukaryotes, only in prokaryotes, or in both eukaryotes and prokaryotes?
Answers
The answers include the following:
The features are found only in eukaryotes is membrane bound nucleus.The features are found only in prokaryotes is nucleoid.The features are found in both eukaryotes and prokaryotes are DNA, Mitochondria. Plasma membrane and ribosomes.What is a Prokaryote?These are the organisms which lacks a defined nucleus and membrane bound organelles while on the other hand, eukaryotes has both features and an example of a prokaryote is bacteria. It possesses distinct organelles such as nucleoid.
It has some similarities with eukaryotes in the organelles present such as ribosomes, plasma membrane, mitochondria etc which performs certain functions in the cell.
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