Answer:
Surface tension due to cohesion
Explanation:
Water molecules are polar meaning they have dipoles. The hydrogen end is partially positive while the oxygen end is partially negative. This is because oxygen with high atomic mass attracting most of the molecule's electron cloud to its end.
Due to this phenomenon water molecules act like little magnets that attract each other. The attraction of the molecules forms hydrogen bonds with each other. This is called cohesion (attraction of similar molecules). Due to this, water is able to create a surface tension that acts like a ‘skin’ and can support some weight (including its own weight) without collapsing.
Final answer:
The ability to fill a glass with water slightly above the rim without spilling is explained by water's cohesive property and surface tension, resulting from hydrogen bonding between water molecules.
Explanation:
The property of water that allows you to fill a glass to just slightly above the rim without it spilling over is known as cohesion. Cohesion is the result of water molecules being attracted to each other due to hydrogen bonding, which creates a strong intermolecular force. This attraction keeps the water molecules together at the liquid-gas (water-air) interface, forming a dome-like shape above the glass. This cohesive force gives rise to surface tension, which allows the water to hold together and not spill over immediately even when filled above the glass's rim.
Examples of cohesion and surface tension in action include floating a small scrap of paper or a steel needle on water. These objects can float because the surface tension at the water's surface can support their weight without the water breaking apart. Surface tension is the capacity of a liquid to withstand rupture when placed under tension or stress.
Which is the best way to describe the fit between
an enzyme and its substrate?
Final answer:
The induced fit model best describes the dynamic and flexible interaction between an enzyme and its substrate, where the enzyme adjusts its shape for optimal fit.
Explanation:
The best way to describe the fit between an enzyme and its substrate is through the induced fit model. This model suggests that enzymes are not rigid structures; rather they are flexible and can adjust their shape in response to interaction with a substrate. The induced fit model compares enzyme-substrate interaction to a hug between two people, where the enzyme slightly changes its structure to achieve the best possible fit with the substrate's transition state, much like a rubber glove that molds to the shape of a hand inserted into it. This flexibility ensures a high degree of specificity while also allowing for minor adjustments to optimize interactions with different, yet structurally related substrates.
15. Describe staph, strept, and diplo:
Staphylococcus, Streptococcus, and Diplococcus are terms describing groups of bacteria based on their arrangements, which have significant implications in diagnosing bacterial infections and determining treatment.
Explanation:The question describes Staphylococcus, Streptococcus, and Diplococcus bacteria, focusing on their arrangements and implications in bacterial infections. Staphylococcus refers to a group of bacteria commonly found on the skin and in the nasal passages of humans. They are known for their grape-like clusters and cause various skin infections, some of which are resistant to antibiotics. Streptococcus bacteria are arranged in chains and are classified based on their hemolytic properties and surface antigens. They can cause many diseases, including strep throat, rheumatic fever, and necrotizing fasciitis. Diplococcus refers to any spherical bacteria that appear in pairs after division, including organisms like Neisseria, which can cause diseases such as gonorrhea and meningitis.
To differentiate between staphylococcal and streptococcal infections in the laboratory, technicians may perform Gram staining, analyze colony morphology, and conduct tests to detect enzyme activity specific to Staphylococcus species. These tests help in determining the most effective antibiotic treatment. Understanding the distinctive characteristics of these bacterial groups is crucial in diagnosing infections and deciding on the appropriate treatment.
the body of tapeworm is segmented but it doesnot belong to phylum annelidai why
Answer:
look
Explanation:
Flatworms, roundworms, and segmented worms are all invertebrates. Some species of each type of worm are free-living, meaning they are not dependent on another organism.Some are parasitic.
Flatworms belong to phylum Platyhelminthes. They do not have a coelom, respiratory system or a circulatory system.Tapeworms flukes are examples of flatworms.
Roundworms are part of the phylum Nematoda. They are bilaterally symmetrical invertebrates.They have a psuedocoelom. Ascaris lumbricodes is the most common human parasite.
Segmented worms are the most complex animals of these three invertebrates. They are placed in Annelida. Segmented worms have a true coelom, a circulatory system and a digestive system.An earthworm is a segmented worm.
Although tapeworms have segmented bodies, they do not belong to the phylum Annelida due to key biological differences. The segments in tapeworms are reproductive and not involved in locomotion or digestion, unlike in Annelids, and their nervous systems are structurally different.
Explanation:The body of a tapeworm is indeed segmented, but it does not belong to the phylum Annelida because there are key differences in their biological make-up. Annelids, such as earthworms, have bodies made up of similarly structured segments with a central nervous system. Moreover, these segments have the potential to function independently.
On the contrary, tapeworms, which belong to the phylum Platyhelminthes, while they have segmented bodies, their segments don't have an independent functional capacity. In tapeworms, these 'proglottids' are reproductive in nature and not involved in locomotion or digestion like the segments in Annelids. Additionally, their nervous systems are structurally different from that of the Annelida.
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What is keratin and melanin and what are their function
Melanin darkens the skin and hair. Melanin protects the skin and eyes from light and the damage/radiation caused by the sun. Keratin strengthens the skin and hair cells, but can be found all over the body. Keratin is made up of proteins which gives it the strengthening properties.
I NEED HELP ASAP!!!!!
Which process in the water cycle do plants perform?
evaporation
infiltration
precipitation
transpiration
Hello there,
Been a long time for me to answer a question.
Your answer is D. Transpiration.
I hope that helepd you enjoy your first answer:)
Answer: Transpiration
Transpiration is the process of water movement through a plant and its evaporation from parts, such as leaves, stems, and flowers.
The test also said its correct.
According to Arroyo, the second thing we need to prepare for is heat and droughts. What are some ways in which people are better preparing to handle these effects of climate change?
Answer:
Firstly is planting drought-resistant strains of food crops to feed the population living in these dry regions. Second is adopting measures that conserve and protect water sources. Other include;Altruistic use of water in homes, farms, and industries Using alternative energy fuels that reduce green should emission into the atmosphere
Answer:
Helping farmers build hillsides terraces and find out ways to conserve water, but also providing for insurance when droughts do come. This gives stability and gives the farmers the confidence to invest. It’s giving them access to affordable credit. It’s allowing them to become more productive so that they can afford their own insurance over time, without assistance.
Explanation:
what is 8x over 3x+6 devidwd by 12xsquare over 5(x+2)
Answer:
10/9x
Explanation:
Start with:
8x/3x+6 // 12x^2/5(x+2)
Factor out 3 then multiply the ricprocal of that fraction:
8x/3(x+2) * 5(x+2)/12x^2
Reduce the expression with x+2, then x,
8x/3 * 5/12x
Reduce numbers w/ GCD 4
2/3 * 5/3x
Lasty, multiply the fractions [multiply numerators&denominators seperatly]
2*5/3*3x
and you get...
10/9x [yayyyy!]
Which are the catalysts of reactions in living things?
Answer:
A. ENZYMES
Explanation:
Enzymes are the catalysts of reactions found in living things. Enzymes can be best described as kind of proteins that serve as biological catalysts. They majorly function in increasing the speed of biological reactions by lowering the activation energy . Enzymes do not effect the equilibrium of any reaction. Also, enzymes itself are not used up in any reaction, however transient changes can occur in them due to the reaction. Enzymes are specific for different substrates.
The catalysts of reactions in living things are enzymes. They are proteins that help expedite the rate of chemical reactions within cells. An example is amylase, which facilitates the breakdown of starch into sugars.
Explanation:The catalysts of reactions in living things are known as enzymes. Enzymes are proteins that significantly speed up the rate of virtually all of the chemical reactions within cells. They achieve this by providing an alternative reaction pathway with a lower activation energy. This function makes enzymes vital for the metabolism of organisms, assisting in processes such as digestion and DNA synthesis.
An example of an enzyme is amylase, which is found in our saliva. Amylase catalyzes the breakdown of starch into sugars during digestion. Without amylase, starch wouldn't be broken down quickly enough to provide the energy our bodies need. Hence, enzymes and their function as catalysts are crucial to various metabolic reactions within living organisms.
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In science, all ideas are not tested with evidence from the natural world
True
False
Answer:
false
Explanation:
Answer:
False
Explanation:
reason
not all studies are proven or tested to be true
How does a catalyst affect the activation energy of a chemical reaction?
Answer:
A catalyst decrease the activation energy of a reaction.
Explanation:
The concept of catalyst describes a molecule that has the capacity to increase the rate of a reaction by diminishing the activation energy (minimum energy requiered for a reaction to happen).
A catalyst lowers the activation energy of a chemical reaction, allowing the reaction to happen more quickly.
Explanation:A catalyst affects the activation energy of a chemical reaction by lowering it. Activation energy is the energy required for a reaction to begin. A catalyst provides an alternative pathway for the reaction to proceed with a lower activation energy, allowing the reaction to occur more quickly.
For example, in the decomposition of hydrogen peroxide, the reaction is slow without a catalyst, but adding a catalyst like manganese dioxide lowers the activation energy, making the reaction happen faster.
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Describe what happens when a keynote species is removed from an ecosystem
Answer:
Removal of keynote species from an eco-system can lead to the existence of the system in danger.
Explanation:
There are certain keynote species in the eco-system which has an important role to play in the survival of other species. The removal of these species can put the eco-system in danger. The keynote species helps to maintain the ecosystem by keeping it in harmony.
An ecosystem may cease to exist or can be taken over by a completely different kind of species by breaking the direction of the system if one of its keynote species is removed.
Keynote species can be divided into three groups by scientists-
(i) Predators: helps in controlling the population of the prey species by affecting the numbers of plants and animals in the food web, like- tiger sharks
(ii) Ecosystem engineers: an organism that creates or demolishes a club of species, like- beaver and
(iii) Mutualists: The interaction of two or more species for their own benefit, such as- bees.
what would occur to an autotroph population if the number of herbivores dramatically increased
Answer:
it would dramatically decrease.
Explanation:
Which part of a feedback mechanism receives messages from several
sensors, compares actual conditions to set points, and determines whether
there are differences from set points?
OA) effector
OB) stimulus
OC) response
OD) integrating center
Answer:
D. Integrating Center
Explanation:
To maintain homeostasis in the body, the body needs to keep track of the condition within and respond to any fluctuations. Also known as the control center, the integrating center activates the effector when it sees that values of the internal condition of the body deviates from the normal range. When this happens, the effector will cause a response to get back within normal range.
What type of force shuld be applied on a football to move it forward
forward force
I hope this help's
A ribosome performing the process of translation is shown above. On which branch of the tree of life would organisms contain this organelle that performs this process? A) On all branches of the tree, as this is a common structure and process among all species. B) Only on the branch with Eukarya, as eukaryotes are the only organisms that contain this organelle. Eliminate C) Only on the branch with Bacteria, as prokaryotes are the only organisms that contain this organelle. D) Only on the branch with Archaea, as extremophiles are the only organisms that contain this organelle.
Answer:
A: on all beach he’s of the tree, as this is a common structure and process among all species
Explanation:
Answer: A
Explanation: On all branches of the tree, as this is a common structure and process among all species.
If three times a number increased by 4, the result is -8
Answer:
The original number is -4.
Explanation:
Let the original number be n.
Next, three times the number is equal to 3n.
Then, increased by 4 means 4 is added.
Hence, three times a number increased by 4 equals -8 is written in the equation form as shown below.
=> 3n + 4 = -8
=> 3n = -8 + (-4)
Since the number, 4, goes on the other side of the equal sign, the number positive 4 changes its sign and becomes negative 4, as shown above.
=> 3n = -8 -4
=> 3n = -12
=> n = -12/3
=> n = -4
Checking the above solution.
Three times the number is equal to 3 * (-4) = -12.
The above product when increased by 4 gives the equation as shown.
-12 + 4 = -8.
The result is -8.
This result is same as the result mentioned in the given question, -8.
Hence, the answer that -4 is the original number is correct.
A human-centered worldview states that humans, as the owners of Earth, can treat resources as they see fit.
Answer:
Human centred world view is the idea that says that humans are the most important species and representative of the earth and can use resources as much as needed.
Explanation:
It also focuses on the benefits and threats of the natural environment to the humans. Earth centred world view says that the nature is available for every species on the earth and the earth is not under our control.
Environmental world view gives us an idea about our role in the environment and our activities that causes positive or negative effect on the environment and also understand how does the world does its function.
Anthropocentric or human-centered worldview considers humans as the most significant entities and permits the use of natural resources to serve human needs primarily. Critics argue this perspective is ethically flawed and unsustainable, suggesting alternatives like ecocentric or biocentric worldviews, where all life has inherent value.
Explanation:The student is asking about the concept of a human-centered worldview, also known as Anthropocentrism. This concept, found particularly in environmental philosophy, entails humans regarding themselves as the most significant entities in the universe and Judge their actions primarily on the basis of human values and experiences. Anthropocentrism views humans as superior to nature and justifies the use of natural resources to serve mankind’s needs, even if it compromises the health of our planet.
However, critics of this worldview argue that it is ethically flawed and unsustainable, insinuating that other life forms and the natural world are valuable only for their usefulness to humans. Critics present ecocentric or biocentric worldviews as alternatives, where every life form has inherent value and humans are one part of the natural world, not above or outside of it.
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100points PLEASE HELP ASAP - In 2012, the total ecological footprint Of China Was only just below that of The European union. But the ecological Footprint of the European Was nearly 3 times greater then that of the Chinese. explain how this is possible
Answer:
the Ecological Footprint measures the amount of biologically productive land and sea area an individual, a region, all of humanity, or a human activity that compete for biologically productive space.
Popuiduum size is reported in the table below. Fisi ya
analysis questions Make sure to use all of the space given for the grap
Table 1. Earth's Human Population Size
Year AD
Number of People
(in billions)
.50 Soooooo
tooooooo
1650
1750
1850
1925
1956
1966
1970
1974
1976
1980
1991
2000
2004
2008
2.0
2.5
3.3
3.6
3.9
4.0
4.4
5.5
6.0
6.4
6.7
Answer:
LICKMA
Explanation:
E lements are _____.
Answer:
A chemical element is a type of atom with the same number of protons in their atomic nuclei.
Explanation:
For an example, the atomic number of Chlorine is 17, and there is 17 protons in Chlorine.
If you have any questions feel free to ask in the comments.
The substances which cannot be separated are called elements.
Explanation:An element is a type of particle having a similar number of protons in their nuclear cores. For instance, the nuclear number of oxygen is 8, so the component oxygen comprises all iotas which have 8 protons.
One hundred eighteen elements have been recognized: the initial 94 happen normally on Earth, and the rest 24 are manufactured ones. There are 80 components that have at any rate one stable isotope and 38 that have solely radionuclide, which rot after some time into different components.
The Calvin cycle takes place in the stroma. What happens in the thylakoid
membranes?
The thylakoid membranes are where the light-dependent reactions occur in photosynthesis.
Explanation:The thylakoid membranes are the site of the light-dependent reactions in photosynthesis. These reactions use light energy to produce ATP and NADPH, which are energy carrier molecules that will be used in the Calvin cycle.
Final answer:
The thylakoid membranes are where light-dependent reactions take place during photosynthesis, capturing light energy to produce ATP and NADPH for the Calvin cycle.
Explanation:
The thylakoid membranes, located inside chloroplasts, are the sites where light-dependent reactions of photosynthesis occur. These membranes house photosystems that contain chlorophyll and other pigments which capture light energy. The light energy is then used to produce ATP and NADPH, two molecules that are essential for the Calvin cycle that occurs in the stroma of the chloroplast. The process overall is critical for converting solar energy into chemical energy that plants, and ultimately all life on Earth, can use.
why are some substances acid and some are bases
Substances made with hydrogen ions are acidic. Substance made with hydroxide ions are bases. It depends on which ions they are made of.
☺ Happy to help.
Chemical substances can be acids or bases on the basis of presence of positively charged hydronium ion and negatively charges hydroxyl ions in the compound.
What are chemical substances?
A chemical substance is a form of matter which have a constant chemical composition and characteristic properties which are unique. However, chemical substances cannot be separated into its constituent elements by the application of physical separation methods, i.e., without breaking the chemical bonds.
Chemical substances are of two types depending upon the presence of positively charged hydronium ions and the negatively charged hydroxyl ions. If there are more negatively charged hydroxyl ions than the positively charged hydronium ions, then the substance becomes a base however if there are more positively charged hydronium ions than the negatively charged hydroxyl ions then the substance is called an acid.
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First system to classify blood types
Answer: ABO blood group system
Explanation:
How are dominant and recessive alleles alike and different ?
Explanation:
Their genes determine the traits plus characteristics. Genes determine their eye shade, hair shade, and skin tone. Unlike the other alleles, they are withdrawn and are also much less possible to be expressed in many different ways. A dominant allele is also forced to be paired up with another recessive allele. Which also means that the most dominant and strongest allele is going to determine the characteristics by one hundred percent to one hundred percent.
I hope this helps you.
What is the advantage of Bacteria that survive a wide temperature
The Bacteria that survives a wide temperature can live through all climatic conditions and in all geographic conditions. They can also live through generations without getting extinct.
Explanation:
Bacteria are small wonder organisms that are present in the universe, they can change their genetic makeup in minutes and get evolved to survive through haphazard situations.
There are some bacteria that can live in extreme high temperatures and one that survives in extreme low temperatures, one that can face drought and the ones that can live in extreme wet condition.
Animal cells contain all of the following structures EXCEPT a
Answer: (Cell wall) I am sure
Explanation:
If boron has 5 protons and 6 neutrons, what's would it's atomic number be
In any element you can find it's mass by the number of protons the element has. So in this case if boron has 5 protons it would mean that it's atomic number is also "5."
Hope this helps
The atomic number of carbon is six, which means that a carbon atom has six protons Carbon has three naturally occurring isotopes carbon-12,
carbon-13, and carbon-14. Which of these statements are true about carbon and its isotopes? Select all that apply
A
All carbon atoms have six neutrons.
B. All carbon atoms have six protons and six electrons.
C
Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons.
D. Atoms of some naturally occurring carbon isotopes may have six neutrons.
E
Atoms of some naturally occurring carbon isotopes may have twelve neutrons.
Answer:
B & D
Explanation:
What differs between the isotopes of an element is the mass number (which is the number indicated after the name of the element e.g carbon-14). The mass number is the sum of neutrons and protons in the nucleus of the atom. The proton number of an element does not change without changing the element. Usually the proton number is equal to the electron number in a neutral atom of an element. However, the neutron number of an element does change (in most cases) within a slight range giving rise to different isotopes of the element.
Therefore in our case, Carbon-14 has 6 protons and 8 neutrons & Carbon-12 has 6 neutrons and 6 protons.
Answer:
B and D are your answers.
The number of electrons is the same as the number of protons and carbon has 6 protons for answer choice B.
For answer choice D because of the occuring isotopes there are as many nuetrons as protons.
Have a good Day! :)
Which of the following explains the relationship between genes and chromosomes?
A. Chromosomes come in different versions called genes.
B. Genes come in different versions called chromosomes.
C. Chromosomes are structures that are made up of two versions of
multiple genes.
D. Genes are structures that are made up of multiple chromosomes.
Answer:
genes are contained in chromosomes - C
Explanation:
The relationship between genes and chromosomes is that chromosomes are structures that are made up of two versions of multiple genes. Thus, the correct option is C.
What are genes and chromosomes?Deoxyribonucleic acid (DNA) is the genetic material. It is a nucleic acid and it is smaller than a gene. The DNA molecule is made up of two long chemical chains called as nucleotides which twist around one another in a double helical structure.
Genes are the segments of deoxyribonucleic acid (DNA) which contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are the structures within cells which contain a person's genes. Genes are contained in the chromosomes in nucleus of the eukaryotic cell.
Therefore, the correct option is C.
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What is El Niño?
What is La Niña?
How do El Niño and La Niña differ?
pls help and answer in short answer need help asap!!!!!!!!!!!!
El Niño: an irregularly occurring and complex series of climatic changes affecting the equatorial Pacific region and beyond every few years, characterized by the appearance of unusually warm, nutrient-poor water off northern Peru and Ecuador, typically in late December.
La Niña: a cooling of the water in the equatorial Pacific, which occurs at irregular intervals, and is associated with widespread changes in weather patterns complementary to those of El Niño, but less extensive and damaging in their effects.
how they differ: La Niña is sometimes referred to as the cold phase of ENSO and El Niño as the warm phase of ENSO. These deviations from normal surface temperatures can have large-scale impacts not only on ocean processes, but also on global weather and climate. ... Typically, El Niño occurs more frequently than La Niña.
Answer:
bruh why did you remove my first answer? i answered your question thanks for getting me flagged :)
Explanation: