The phenomenon of small water droplets remaining stuck to the glass despite emptying can be accounted for by the properties of cohesion and adhesion in water. Cohesion makes water molecules stick together forming droplets, whereas adhesion makes these droplets stick to the glass walls.
Explanation:
The student's observation of small droplets of water remaining stuck to the glass can be explained by two properties of water: Cohesion and Adhesion. Cohesion is the property of water that makes its molecules attracted to each other, causing them to stick together and form droplets. Adhesion is the property that allows water molecules to be attracted to other substances, in this case, the glass, allowing it to stick to the glass walls.
For example, when the student empties the glass, the cohesion property makes water molecules stick together, thus forming small droplets. Meanwhile, the adhesion property causes these droplets to stick to the glass. Together, these two properties explain why droplets of water remain in the glass after it has been emptied.
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Based on the pH tolerance level data in the chart, an appropriate research topic that would lead to valid conclusions would be represented by ALL BUT one of the research questions. That is:
A) Would a buffering solution increase the life span of frogs?
B) What animal life forms seem most resistant to change in pH?
C) How does a change in temperature affect the reproduction of crayfish?
D) What is the effect of acid rain on animal life within a closed system?
I believe the answer is C) How does a change in temperature affect the reproduction of crayfish?
The concentration of H+ ion (pH) could influence the structure of protein, which might inactivate some enzyme of an organism and alter their metabolism. All research questions beside option C is related to the pH. Buffer solution will provide an protection that will makes the pH become more stable. Acid rain contains acid which will decrease the pH of the surrounding environment.
Answer:
The correct answer is c
Explanation:
Natural disasters can have positive effects on an ecosystem.
yes, for example, an earth quake while devastating can lead to the formation of a mountain or a valley. or a flood can change a landscape in such a way to make it more inhabitable for the local creatures. while natural disasters can help the ecosystem they can also be horrible for them as well.
Yes it can have positive effects.
Which of the following can be used by scientists to date the sediment layer they are found in? Select all that apply.
suppose you were getting ready for a soccer game and wantedto have a snack that would give you energy for the entire game which snack should you eat a container of yogurt with some cheese ot hard candy with soda pop
Answer:
The better choice is the yogurt and cheese. Fats like yogurt and cheese have more energy stored in them than sugars do and this energy can sustain you longer.
Explanation:
sample response on edgenuity
what is codon. what does it do
A codon is basically a "word" in the genetic code.
Let's start at the base. A base is the smallest unit of information in genetics. It is a chemical represented by either A, T , C, G or U.
These genetic "letters" are combined into "words" which are called codons. What is useful is that each codon is only made of 3 bases. You'll have CCT, GAT, TTA etc. So what do these words represent? Well they can be instructions, like START or STOP, but usually they represent an amino acid, the LEGO building blocks of proteins. There are around 20 AAs but a bit of maths tells us we have a lot more codon combinations than AAs. This means we have some synonyms where several codons can represent one AA.
To take the analogy further, the codons combine into "sentences" and then "chapters". The chapters are a gene, usually instructions for a complete protein, but some of the sentences are useless and will be ignored when translating into a protein.
Then we have the "Book" which is the chromosome. The reason I like to think of it as a book is that at this point it is a contained unit, a massive molecule. You can separate up your books and even lend one to a friend, but you can't do that with a chapter unless you destroy the book.
Finally you have you "library" or genome. It's not a big collection, 46 books in total, and in fact you have 2 copies of each. It's like inheriting 2 sets of encyclopaedias from your parents. They both have the same information, it is just explained in different ways.
And there is my book analogy of genetics. It's not perfect but works when used on small children.
The bacteria in a colony are unable to perform conjugation. How would this hurt the bacterial colony's chance for survival?
The bacteria would be more alike, genetically.
A scientist uses material in her lab to separate dna fragments by size what process is she using
She is using gel electrophoresis, where a DNA sample with DNA molecules of varying length are ran through an agarose gel to separate them into bands by size from longest at the top to shortest at the bottom.
Answer: Gel electrophoresis
Explanation:
Gel electrophoresis is a technique that is used to separate DNA fragments based on their size.In this technique, DNA samples are loaded into the wells at one end of a gel, and then an electric current is applied. DNA fragments being negatively charged move towards the positive electrode. Since, all DNA fragments have the same amount of charge per mass, small fragments move through the gel at a faster rate than large ones.In this way the fragments get separated by size.Eukaryotic cells are much larger and have more specialized functions than prokaryotic cells because they contain___________, which take up space and carry out specialized activities.
Final answer:
Eukaryotic cells contain organelles that are essential for various specialized functions, unlike prokaryotic cells which lack these structures.
Explanation:
Eukaryotic cells are much larger and have more specialized functions than prokaryotic cells because they contain organelles, which take up space and carry out specialized activities. While prokaryotic cells lack these membrane-bound structures, eukaryotic cells boast an assortment of organelles such as the nucleus, mitochondria, endoplasmic reticulum, and Golgi apparatus among others. Each of these organelles plays a critical role in the cell's life, with functions ranging from genetic material storage and energy production to protein synthesis and waste processing.
Which compound does a plant absorb during photosynthesis
Answer: C. Carbon dioxide
Explanation:
The carbon dioxide is the compound that plants absorb from the atmosphere so as to produce carbohydrates as a source of food. This entire process is called as photosynthesis. In photosynthesis carbon dioxide, and water are the reactants which produce carbohydrates and oxygen in the presence of sunlight.
Biology. Carbohydrates.
Answer:
Amylase
Explanation:
Which systems have the most influence on behavior? Select all that apply.
endocrine
respiratory
circulatory
integumentary
nervous
Answer:
Endocrine system and Nervous system
Explanation:
Endocrine system and nervous system together work to regulate the behaviour of individuals. In general, sex hormones testosterone and estrogen are responsible for gender specific behavioral differences among males and females. The hormones of adrenal gland determine the behaviour of person under stress conditions. Adrenal gland secretes hormones epinephrine and norepinephrine. These hormones target the sympathetic and parasympathetic division of autonomous nervous system to regulate behaviour of person.
Answer:
endocrine and nervous
Explanation:
The ody ssey ware unit material specifically stated these two only and it was graded correct.
unit 3, assignment 1 under section PHYSIOLOGY. Page 7 of assignment printoff, this answer came from the speaker after the second graphic of the video. and is in the printed transcript of the video.
"Although all organ systems are involved in producing a behavior, the nervous and endocrine systems have the most influence"
And that's what the test wants.
The development of pesticide resistance in crop pests is an example of?
Pesticide resistance in crop pests is an example of natural selection. Individuals with gene versions that confer pesticide resistance are more likely to survive and reproduce, leading to the increase of pesticide resistance in the pest population over time.
Explanation:Pesticide resistance in crop pests is an example of natural selection. When pesticides are repeatedly applied to a pest population, individuals with gene versions that confer pesticide resistance are more likely to survive and reproduce. As a result,
pesticide resistance becomes more common in the population over time. This phenomenon is observed in over 400 insects and mite pests and more than 70 fungal pathogens that have become resistant to one or more pesticides.
Which is a biotic factor that characterizes the desert biome?
A.cacti
B.conifers
C.low annual precipitation
D.high annual precipitation
which of the following may be associated with the collision of two sections of continental crust?
A.hot-spot volcanoes
B.earthquakes and a mountain rages
C.earthquakes, volcanoes, and trenches
D.trenches and earthquakes
earthquakes and a mountain range
A large stored sugar found in plant roots, fruits and seeds
What happens when a substance undergoes a chemical change?
The map shows the distribution of wild boars in the United States. Wild boars are an invasive species to the United States. Which of these facts about wild boars is best supported by the evidence provided? Wild boars were brought to the United States by humans. Wild boars have quickly spread through the United States. Wild boars have established successfully in areas with warm climates. Wild boars have a high reproductive rate and no natural predators.
I'm pretty sure it's D, I could be wrong but it seems like it's the most correct answer.
Answer:
Option D,
Explanation:
It is given that wild boars are invasive species which means they are not native to the ecosytems of united states and since they are invasive they are also harming the native plants and animals life.
An invasive species becomes disastrous because there in no known way of controlling it.
Wild boars being invasive spread to different locations of USA , thus they must be having a high reproduction rate . Also, they , they might not be having any natural predators , therefore they have grown uncontrollably
Hence, option D is correct
Which element provides strength to the exoskeletons of clams and oysters
Which element provides strength to the exoskeletons of clams and oysters?
By what process are animal wastes and dead organisms converted to other nitrogen containing compounds ?
Answer:
Decomposing
Explanation:
When bacteria starts to break down the dead matter from organisms, this is called decomposing
Animal wastes and dead organisms are converted to other nitrogen-containing compounds through ammonification, nitrification, and denitrification, involving various microorganisms that complete the nitrogen cycle.
Animal wastes and dead organisms are converted to other nitrogen-containing compounds through a multi-step process involving different types of microorganisms. First, ammonification occurs, where bacteria and fungi convert organic nitrogen into ammonia (NH3). This ammonia then undergoes nitrification, carried out by bacteria such as Nitrosomonas, turning ammonia into nitrites (NO2) and then into nitrates (NO3). Finally, through the process of denitrification, bacteria like Pseudomonas and Clostridium convert nitrates back into gaseous nitrogen (N2), which re-enters the atmosphere, completing the nitrogen cycle.
Explain two positive environmental impacts of composting.
ANSWER:
1. Improving soil quality
2. Reducing waste in our landfills
EXPLANATION:
Composting the soil is a characteristic organic process, did under controlled vigorous conditions (requires oxygen). In this procedure, different microorganisms, including microbes and growths, separate natural issue into less difficult substances.
For most nursery workers and agriculturists treating the soil is a critical technique for improving the nature of the soil, advancing the dirt with basic plant supplements and bringing gainful organisms into the ground. Read progressively about the significance of sound soil in your garden
All things considered, 33% of family unit squander is a natural material. At the point when natural squanders are arranged from different squanders that are discarded in landfills, it decreases the volume of junk setting off to our landfills.
Why would damage to the nervous tissue in the spinal cord lead to paraysis
Drag each example to the correct location on the table. Identify whether the changes to biodiversity are natural or due to human intervention. A species of wasp is outcompeted by several other species and goes extinct. A species of wildflower goes extinct after land is cleared for agriculture. A population of grubs decreases as the population of moles, a predator of grubs, increases. Three populations of migratory fish decline after the construction of a hydroelectric dam. The number of offspring produced by a population of frogs decreases after pesticides enter their pond. A mass extinction occurs after several volcanic eruptions.
1. A species of wasp is outcompeted by several other species and goes extinct; Natural causes.
2. A species of wildflower goes extinct after land is cleared for agriculture; Human intervention.
3. A population of grubs decreases as the population of moles, a predator of the grubs, increases; Natural causes.
4. Three populations of migratory fish decline after the construction of a hydroelectric dam; Human intervention.
5. The number of offspring produced by a population of frogs decreases after pesticides enter their pond. Human intervention.
6. A mass extinction occurs after several volcanic eruptions; Natural causes.
The changes in biodiversity can be influenced both, by the humans and their activity, and the natural events that are taking place on our planet. Throughout the geologic history, lots of natural events. like asteroid collisions, super-volcano eruptions, changes in the composition of the atmosphere etc, have resulted in the dying out of millions of species, and even though this process of natural selection continues, it is not the dominant cause anymore. Nowadays, the biggest cause of loss and changes of biodiversity is the human activity. Lots of living organism have lost their habitats and food sources and went extinct because of the human activity, and also some species have died out or are on the verge of extinction because of the introduction of non-native species to certain places, and that has been devastating to the local wildlife.
Answer:
1. A species of wasp is outcompeted by several other species and goes extinct; Natural causes.
2. A species of wildflower goes extinct after land is cleared for agriculture; Human intervention.
3. A population of grubs decreases as the population of moles, a predator of the grubs, increases; Natural causes.
4. Three populations of migratory fish decline after the construction of a hydroelectric dam; Human intervention.
5. The number of offspring produced by a population of frogs decreases after pesticides enter their pond. Human intervention.
6. A mass extinction occurs after several volcanic eruptions; Natural causes.
Explanation:
Which fator can decrease the rate for chemical reactions . A. Low activation energy ,B.hight pressure ,C.low temperature.D.high concentration of reactants
Low temperature will slow the chemical reaction.
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei and can often be described by a chemical equation.
C- Low temperature
When you lower the temperature, the molecules are slower and collide less. That temperature drop lowers the rate of the reaction.
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
eukaryotes are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
Eukaryotes are organisms with cells that contain a membrane-bound nucleus and organelles. They can be unicellular or multicellular and are distinct from prokaryotes, which lack a nucleus and membrane-bound organelles. Eukaryotic cells are typically larger and more complex than prokaryotic cells.
Organisms that contain more than one cell with membrane-bound organelles and a nucleus are known as eukaryotes. These organisms can be made up of a single cell or can be multicellular. They are characterized by having a nucleus that contains the organism's genetic material and is surrounded by a complex nuclear membrane. Additionally, eukaryotic cells contain several other membrane-bound organelles, such as mitochondria, endoplasmic reticulum, and Golgi apparatus, which perform specific functions necessary for the cell's survival and operation.
Eukaryotic organisms include a vast array of life forms including protozoa, fungi, plants, and animals. A significant difference between eukaryotes and prokaryotic cells, such as bacteria, is the presence of a nucleus and other membrane-bound organelles in eukaryotes, which are not found in prokaryotes. Eukaryotic cells are typically larger than prokaryotic cells and are the building blocks of complex organisms.
Copper is a metal that is used for many purposes. It is mined from the earth using various methods. Though the amount of copper in the Earth's crust is very large, if the mining of copper continues, it will eventually run out.
Jim thinks that conserving copper is important, and says that the best way to do this would be to stop all copper mining at once. Is there a problem with this solution?
A) No, it is as good a solution as any.
B) Yes, there is no need to conserve copper.
C) No, we must conserve copper no matter what.
D) Yes, the need to conserve copper must be balanced with use.
D) Yes, the need to conserve copper must be balanced with use.
Answer:
The answer is D) Yes, the need to conserve copper must be balanced with use.
Explanation:
How can stress be beneficial?
Increasing energy
Decreasing heart rate
Increasing digestion
Increasing immune response
Stress is beneficial because it causes ; ( A ) Increasing energy
Stress is beneficial to the human body in varying ways because stress causes the body to releases certain hormones in response to situations possessing threats to the body.
These hormones leads to increase in heart rate and breathing speed. and this feeds our muscles with the required energy needed to respond to the situation.
Hence we can conclude that stress is beneficial because it causes increasing energy in the human body.
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Which in the steps in this sequence of events is an example of mitosis at work
Answer:
The bruise slowly disappears as the arm heals
Explanation:
took edge test
ASAP 20 points!! Use the following image to complete the sentences below
The answers are Nucleus, Eukaryotic, Chloroplast, Plant cell.
The structure labeled as X is the Nucleus, so the cell in the image is a Eukaryotic. The structure labeled as W is the Chloroplast, so the cell in the image is a Plant Cell.
The answers are Nucleus, Eukaryotic, Chloroplast, Plant cell. This is correct I have taken the test.
is not a function of the skeletal system:? a. manufacture of red blood cells b. protection c. support d. synthesis of growth hormones
What list describes the diet of an omnivore? Mice and rabbits Rabbits and insects Fish and insects Fish and berries
The correct answer is D. Fish and berries.
Explanation
Omnivorous is a term of Latin origin that means eating everything. At present, the term is used to refer to all species of animals (including humans) that eat different foods, that is, omnivorous animals, unlike carnivores (which feed exclusively on meat) and herbivores (which it feeds exclusively on plants) eat herbs, fruits and meat. Therefore, it can be affirmed that the diet of an omnivore is composed of fish and berries. So, the correct answer is D. Fish and berries.
Answer:
d
Explanation: