Answer:
Explanation:
A. sodium fluoride = NaF = ionic bond
B. carbon dioxide = CO2 = polar covalent bond
C. hydrogen nitrate = 2NH3 = ionic bond
D. silicon hydride = Si nH 2n+2 = polar covalent bond (i think.. could be non-polar but definitely not ionic)
E. hydrogen sulfide = H2S = non-polar covalent bond
F. magnesium oxide = MgO = ionic bond
hope this helps! :)
If a salesman earns $450 for every $50,000 sale, what is his commission rate?
0.9%
15%
1.5%
9
Answer:
Explanation:
The rate = 50000*(x/100) = 450
Multiply both sides by 100
50000 * x = 450*100
50000* x = 45000
Divide by 50000
x = 45000/50000
x = 45/50 = .9%
Answer:
This would be the commission rate because 50000 multiplied by 0.9 is 450.
Explanation:
Personality has been linked to numerous activities, behaviours, thoughts, beliefs and actions, both empirically and anecdotally. For example, people speculate about a certain type of personality that cheats; or a person who has personality traits that make them successful. Compile a response identifying a few of the links between personality and a particular outcome that you have heard of. Include your thoughts about the power and influence personality can have on such outcomes as behaviour, actions, thoughts and beliefs.
People's personalities will determine whether they get recruited, promoted, derailed, help others, are viewed as leaders, and other outcomes. It is obvious that personality type affects health and happiness. Novelty seeking was additionally connected to a liking for salty meals.
Even while research shows that personality type undoubtedly affects health and wellbeing, some diseases are more probable to be impacted by psychological traits than others. For instance, heart disease has a stronger correlation with type of personality than cancer.
The need for novelty has also been associated with a predilection for salty meals, whereas stressed people seem to prefer a much smaller selection of foods. Mood and taste have also been shown to be correlated in both directions. Personality influences whether a person is employed, promoted, derailed, helpful to others, viewed as a leader, and other factors.
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adasdaw wa awd awdadasdadwd
Cells are made of molecules.
Right or wrong?
Answer: Cells are made of proteins, which are a type of molecule.
Explanation:
If most animals are derived from a single ancestral stock, and if that ancestral stock was radially symmetrical, would the colonial hypothesis or the coenocytial hypothesis of animal origins be more attractive to you? Explain
The colonial hypothesis of animal origins would be more attractive because the colonial hypothesis posits that animals evolved from colonial protists.
What is colonial hypothesis?The colonial hypothesis is a theory of animal evolution that proposes that animals evolved from colonial protists. A colonial protist is an organism made up of a group of genetically identical cells that function as a single unit. The cells in a colonial protist are held together by a common extracellular matrix and are able to divide and differentiate in order to perform different functions. According to the colonial hypothesis, animals evolved from colonial protists through a process of specialization and integration of cells.
The cells in the colonial protist became specialized for different functions and became more integrated with one another, eventually giving rise to the complex multicellular animals we see today. The colonial hypothesis is one of several theories that have been proposed to explain the evolution of animals, but it is not widely accepted by the scientific community.
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Which of the following best expresses the concept of natural selection
Answer:
style neutrons
Explanation:
Which of the following statements about feedback regulation of a metabolic pathway is correct?
A) The compound that regulates the pathway acts as a competitive inhibitor or a positive allosteric regulator.
B) The enzyme that is regulated by feedback inhibition is usually the last enzyme in the metabolic pathway.
C) The final product of a metabolic pathway is usually the compound that regulates the pathway.
D) The products of the pathway become the reactants for a different reaction, and thus products are unable to accumulate.
E) Accumulation of the product of the pathway increases further formation of that product.
Answer:
Correct answer is: B) The final product of a metabolic pathway is usually the compound that regulates the pathway.
Explanation:
Feedback regulation of a metabolic pathway is a mechanism by which the end product of a pathway inhibits an enzyme that catalyzes an early step in the pathway, thus preventing the overaccumulation of the product. This is an example of negative feedback, which maintains homeostasis and optimizes the efficiency of the pathway.
For example, in the synthesis of the amino acid isoleucine from threonine, the final product isoleucine binds to the allosteric site of the first enzyme in the pathway, threonine deaminase, and inhibits its activity. This reduces the rate of the pathway and prevents the excess production of isoleucine.
(1 point)
3. What kind of scientist examines rocks to learn about Earth's history and
structure
COO
Obotanist
O chemist
O geologist
Obiologist
Answer:
Geologist
Explanation:
Geo means earth
What does the term “evolution” mean to you
Answer:
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
Explanation:
Answer:
evolution means the making of judgement about the amount number or value of something
ability of a cell to form the whole organism
Answer:
Totipotency
Explanation:
Totipotency can be regarded as
capability of single cell to divide,develop as well as to form differentiated cells in a living body. This could be found in Meristematic plant cells since they posses the ability to develop into complete plants. Totipotent cells can be formed during sexual and asexual reproduction and these could include spores and zygotes. Some organism can experience totipotency in the sense that cells can dedifferentiate as well as regaining totipotency. Instance of this is plant cutting which used in growing an entire plant.
¿What are Vertebrates?
\({\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}\)
They are further classified into: fish, amphibians, birds, reptiles and mammals.
I hope I've helped : )
Protein Structure Evaluation Based on Gel Filtration Data A new protein of unknown structure has been purified. Gel filtration chromatography reveals that the native protein has a molecular weight of 240,000. Chromatography in the presence of 6 M guanidine hydrochloride yields a single peak corresponding to a protein of Mr 60,000. Chromatography in the presence of 6 M guanidine hydrochloride and 10 mM b-mercaptoethan yield peaks for protein of Mr 34,000 and 26,000. Explain what can be determined about the structure of this protein from these data?
Answer:
Based on the given information, the disruption of hydrogen bonds and other weak forces that helps in integrating the structure of the protein is mediated by guanidine hydrochloride, that is, it denatures the protein. Only a solitary peak of Mr 60000 is witnessed post denaturation. This clearly shows that only one peptide of Mr 60000 is left in the solution post denaturation.
Of the entire protein of molecular weight 240000 D, post denaturation only the protein of 60000 D got left, which shows that the protein comprises four subunits of 60000 D, and thus, is a tetramer.
With the addition of 10 mM beta-mercaptoethanol, the protein got further dissociated into two subunits of molecular weight 34000 D and 26000 D showing that each subunit of protein was linked by disulfide bonds, which got broken with the addition of beta-mercaptoethanol.
Lipids such as fats serve as a stored form of energy and are required for varius functions of the body
Answer:
uhm this is true is that is what your asking?
Explanation:
Lipids such as fats serve as a stored form of energy and are required for various functions of the body. The body needs to digest and absorb the fats we consume so that it can accomplish these functions.
Describe the role of GA in a-amylase production and in germination. Provide evidence for your claim
Gibberellic acid (GA) plays a crucial role in a-amylase production and germination. GA stimulates the synthesis and release of a-amylase enzymes, which hydrolyze starch into sugars during germination. Experimental studies have demonstrated that the application of GA accelerates a-amylase production and enhances germination in various plant species
In terms of a-amylase production, GA stimulates the synthesis and release of this enzyme. a-amylase is responsible for breaking down starch into simpler sugars, which are then utilized by the plant for growth and development.
Studies have shown that applying GA to plant tissues or seeds results in an increased production of a-amylase, facilitating the conversion of stored starch into energy-rich sugars.
Regarding germination, GA is involved in breaking seed dormancy and promoting the growth of the embryonic plant.
It stimulates the production of hydrolytic enzymes like a-amylase, which enable the hydrolysis of starch reserves in the endosperm, providing the energy needed for germination and seedling establishment.
Additionally, GA helps in cell elongation and division, promoting the growth of the embryo and the emergence of the radicle.
Evidence for GA's role in both processes includes studies where the exogenous application of GA to seeds or plant tissues has been shown to enhance a-amylase production and promote germination.
Conversely, inhibiting GA synthesis or action results in reduced a-amylase activity and impaired germination. These findings support the critical involvement of GA in both a-amylase production and germination processes in plants.
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All of the following are dam effects to land upstream EXCEPT O Increased temperature Rapid water flow O land becomes flooded O Increase sediments
Dam affects land upstream expect land becomes flooded. Dams are constructed over the river's function. The dams help in the generation of electricity which is known as hydrothermal energy. They help in trapping the sediments, and rock bed on the riverside the place where fish spawn.
The feature of the habitat which affects the rivers are trapped such as logs, gravel, and other food option. There are negative effects of the building of dams are displacement of the people as the area gets flooded and maintenance and creation cost are high and complex.
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The human body produces 60 billion (60,000,000,000) new cells per day. How many cells does it produce in one hour?
Answer:
E.g. E. coli—20 min, so in an hour 1 cell would turn into 8.
Given that 60 billion cells are produced in a day in the human body, the number of cells that will be produced in an hour can be calculated by dividing the number of cells by the number of hours in a day. There would be approximately 2.5 billion cells produced in one hour.
How frequently are the cells in our body renewed?The human body regularly replaces its own cells. Every day, roughly 330 billion cells, or 1% of all our cells are replaced. The equivalent of a new you will have been replenished in 80 to 100 days with 30 trillion.
Each second approximately one million cells of the body die which means 1.2 kg of the cells are destroyed each day. All the cells in the body have a definite lifespan after which they are replenished.
The dead cells of the body are engulfed in a process called phagocytosis and are transferred to the lysosomes where they are degraded.
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Wind energy is. And acrossthe united States
Wind energy is clean and prevalent across the United States.
What is Wind energy?This is referred to as the type of energy which is used to produce electricity through the conversion of the kinetic energy of air in motion and it is a renewable source which makes it an ideal source.
It is used for various purposes such as in wind turbines as it requires the harnessing of energy from the wind using mechanical power to spin a generator and create electricity used to power various types of appliances and devices.
It is a clean and renewable energy source in the United states and is very prevalent due to the strong pressure gradient force and atmospheric pressure variations which is therefore the reason why it was chosen as the correct choice in this scenario.
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why does secondary consumers cannot digest the bones of their prey
Answer:
The conclusion to be drawn from the fact that secondary consumers do not digest the bones of their prey is that energy used to create bone mass often does not travel farther up the food chain . Explanation: ... No energy is required to form bones .
Explanation:
Answer:hebivore
Explanation:
You can see yourself in a mirror because of??
absorption.
scattering
C. regular reflection
D. diffuse reflection.
Answer:
Regular reflection.
Explanation:
Describe limits to cell division.
Answer:
All cells in the body have this internal control and most cells only divide between 50-70 times before they stop or die.
The study of cells is called cell biology.
The cell theory is given by Rudolf Virchow
The postulates of a cell theory are as follows:-
All the organism is made up of cellThe structure and the functional unit of life is the cell.All the pre-existing cell is made up of old cell.The limits of the cell division are cancer cells. The cancer cell does not stop after a limit. It divides continuously and forms a tumor.
Hence, the correct answer is a cancer cell.
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From what you know of the frog's life cycle, suggest reasons for the large size of its fat bodies.
The fat bodies in frogs are yellowish to orange in color. They have a finger-like or spaghetti-like shape. The fat bodies are needed for hibernating, metamorphosis and for mating. These are areas in the body containing stored energy.
A group of students observe a sample of water under a microscope. The students see a single-celled organism digesting another cell. The single-celled organism contains a nucleus and other organelles. In which kingdom would this organism most likely be classified?
Animalia Fungi Plantae Protista
Answer:
plantea
Explanation:
I'm not sure if that's correct
How are homologous chromosomes different from a duplicated chromosome?
Answer:
there different because
Explanation:
Unduplicated chromosomes are single linear strands.
Duplicated chromosomes contain two identical copies (sister chromatids) joined by a centromere, that result from DNA replication .
Homologous chromosomes are not identical and do not originate from the same organism (One from each parent).
In other words, how are we speeding up the effects of the competitive exclusion principle and thereby altering the outcome of that ecosystem's natural succession
Answer: Overgrazing, overfishing, and forest fires
Explanation:
Competitive exclusion principle two species which have the same ecological niche cannot exists together as such species will be competing for the same resources. The species which is superior over the other will receive the resources and the other species having no competitive advantage will not survive in future.
According to the given situation, human being is the most superior species on earth and have competitive advantage of thinking ability and intelligence over other species. Succession are the changes that occur in the biotic community of an ecosystem with respect to time.
The human beings can speed up the effects of the competitive exclusion principle by various ways: Overgrazing, overfishing, and forest fires. The overgrazing of the cattle in the field can remove the vegetation cover of the region and the land will become barren so instead of progressive succession in terms of vegetation cover the succession will again re-initiate in terms of primary succession if environment supports.
Overfishing can cause the exclusion of some valuable species of fish and there will not be evolution of such species and will alter the outcome of natural succession.
Forest fires can affect both floral and faunal species some species may tolerate the fire and will survive and some precursors like roots of the plants can support new individual plants. This will again alter the outcome of natural progressive succession in an ecosystem.
Explain how viruses, over time and evolution, have actually made cells stronger and better.
what is not a branch of biology
Answer:
Geology
Explanation:
Geology is the study of rocks and the earth and is a different field of science
if the temperature increases, then the dissolved oxygen level will _____________ because _______________
Answer: Lower levels of dissolved oxygen
Explanation:
it lowers the level of dissolved oxygen causing the molecules are moving faster * do to matter*
List and describe five ways in which sexuality affects a person daily life?
Answer:
age gender, marital status, race, disability and sexual transmitted infections
On a shade-grown coffee plantation, smaller coffee trees grow in the shade of other forest trees. Why is shade-grown coffee more sustainable than coffee grown in full sun?
A. It provides greater profits for farmers.
OB. It provides habitat for forest birds.
O C. It reduces forest biodiversity.
D. It produces more coffee beans.
The reason why it is more sustainable is that It provides habitat for forest birds.
What is shade grown coffee?Owing to the fact that it provides home for forest birds and encourages biodiversity, coffee farmed in the shade is said to be more environmentally friendly than coffee grown in full sunlight.
Shade-grown coffee farms keep their tree canopy intact, preserving the habitat for species such as birds, insects, and other creatures vital to the ecosystem's health.
By minimizing deforestation and soil degradation, this method of growing coffee has been found to conserve the environment and preserve biodiversity.
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What is the Calvin cycle?
A series of light dependent reactions
A series of light independent reactions.
Light dependent and light independent reactions
Another name for the production of chloroplasts.
The Calvin cycle is a series of light-independent reactions that occur in the chloroplasts of plants.
These reactions are responsible for converting carbon dioxide into glucose, which is the main source of energy for the plant. The Calvin cycle is also known as the Calvin-Benson cycle or the C3 cycle. The cycle consists of three main stages: carbon fixation, reduction, and regeneration. During carbon fixation, an enzyme called Rubisco combines carbon dioxide with a five-carbon molecule called RuBP. This results in the formation of two three-carbon molecules known as PGA. In the reduction stage, ATP and NADPH, which are produced during the light-dependent reactions, are used to convert PGA into G3P. Some of the G3P molecules are used to regenerate RuBP, while others are used to produce glucose and other organic compounds.For more questions on Calvin's cycle
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