Hey there!
Water is a polar molecule.
Why? Water has unbalanced electrons, meaning one side of the molecule is slightly negative while the other is slightly positive. This results in water being able to dissolve many things, resulting it in being called a "universal solvent".
Hope this helps!
Describe how models are used to predict phenomena.
Models are utilized to predict and make phenomena easier to understand. They come in various forms, like mathematical models which accurately predict one value from another. Others, like statistical models, offer a range of probable outcomes, acknowledging uncertainty.
Explanation:Models, being mathematical or otherwise, are tools that scientists and researchers use to predict and understand phenomena. They provide simplified depictions of more complex real-world processes, making them visual and tangible. For example, mathematical models in statistics are used to describe and predict phenomena. These models, like deterministic models, can predict a value from another with a high degree of precision. They are used in diverse fields, like space agencies to predict things like the thrust a rocket needs to escape Earth's gravity.
In physics and chemistry, three-dimensional models are used to visualize complex molecules. Furthermore, computer simulations can model processes like star or planet formation. They can simulate past events or events that occur too quickly or slowly to observe directly. They also allow for virtual experiments where variables can be altered to observe different outcomes.
Lastly, statistical models like those used in meteorology to predict weather, illustrate the likelihood of events. Unlike deterministic models, they acknowledge uncertainty, offering a range of possible outcomes. This allows us to prepare for the different potential scenarios.
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Brainliest answer for correct. Thanks
A neighborhood has experienced a steep increase in the amount of waste generated from individual houses. Which solutions will decrease pollution in the neighborhood?
Encourage people in the neighborhood to use more disposable products.
Burn waste in backyard fire pits.
Have neighbors dump their waste into a nearby river.
Start a recycling program.
Convert waste into reusable products.
Answer:
The correct answer is option B, Encourage people in the neighborhood to use more disposable products.
Explanation:
The best way to reduce the waste is to stop its negative impact at the source of generation. In a neighbor hood, all the house can be considered as a source of waste generation. Thus if people are encouraged to use disposable product, it would be very easy to just collect and dump the waste without segregation. This will save time, money and effort.
Answer:
Encourage people in the neighborhood to use more disposable products.
Start a recycling program.
Convert waste into reusable products.
Are mushrooms alive?- Is it living or non living?
Why?
Order the steps of protein synthesis. Amino acids are lined up in a sequence. DNA is transcribed. RNA is modified into mRNA. A ribosome binds to mRNA. Chemical bonds are formed and a protein is produced.
steps involved in protein synthesis:
DNA is transcribed.RNA is modified into mRNA. A ribosome binds to mRNA. Amino acids are lined up in a sequence. Chemical bonds are formed and a protein is produced.Explanation:The synthesis of proteins takes two steps: transcription and translation. Transcription takes the information encoded in DNA and encodes it into mRNA, which heads out of the cell's nucleus and into the cytoplasm. During translation, the mRNA works with a ribosome and tRNA to synthesize proteins.
Select all that apply. Our chemoreceptors are mostly for tasting while other animals use them for _____. finding food finding mates smelling sensing danger
Our chemo receptors are mostly for tasting while other animals use them for- sensing danger and finding mates.
Examples of sensing danger:
Certain fish species like Cichlids release a type of pheromone that alerts other fish of the danger around them or a cat becomes alert and flees away when it smells a dog. Example of finding mates is that many animals release sex pheromones to attract a mate.
Answer:sensing danger and finding mates.
Explanation:
1) __________ fats or lipids form animal body fat that is used for stored energy and insulation
Technology has changed the way scientist conduct their research. Provide two pieces of evidence from the film to support this claim:“Technology is crucial for lion research in Gorongosa National Park
The evidence to support eth claim are:
GPS TrackingCamera TrapsIn the film on lion research in Gorongosa National Park, two key pieces of evidence highlight how technology has transformed the way scientists conduct their research:
1. GPS Tracking: Scientists use GPS collars fitted on lions to monitor their movements in real-time. This technology allows researchers to collect precise location data, helping them understand lion behavior, territories, and interactions, which would have been challenging without technology.
2. Camera Traps: The film shows the use of camera traps equipped with motion sensors. These devices capture images and videos of lions and other wildlife, providing invaluable insights into their behavior and population dynamics without direct human presence.
These examples illustrate how technology enhances the efficiency and depth of scientific research in studying lions and wildlife in the park.
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there are not many deserts on earth true or false
Choose two genetic disorders and discuss how they are inherited. Plz hurry to answer this cuz i really need the answer
Down syndrome
A genetic chromosome 21 disorder causing developmental and intellectual delays.
Cystic fibrosis
An inherited life-threatening disorder that damages the lungs and digestive system.
Down syndrome and Fragile X syndrome those are the one I know
List at least 5 differences between bacteria and viruses
Answer:
Bacteria and Viruses both are microorganism but they are very different from each other.
Explanation:
viruses totally depend on their host for replication but bacteria can replicate independtly.
viruses need viable cell to survive but bacteria dont.
viruses are smaller in size than bacteria.
viruses are usually disease causing entity but bacteria also provide benefits to their host called as commensals bacteria.
viruses totally hijack the cellular machinery of the host and replicate itself.
Using Iodine, what indicates the presence of a complex carbohydrates
Hi. OP do not mind this. This is for the mods. im a rebel. cant wait to get banned. dont worry mods this is an alt. lol
answer key to microscope mania
Across:
1. Known as the “Father of Microscopy” Leeuwenhoek
8. Refers to the power of a microscope; calculated by multiplying the
power on the objective by the power on the eyepiece
13. Part of the microscope that contains the ocular lens
15. Type of lens found in the eyepiece
17. When viewing objects under ___-power, you are able to see a
larger field of view, but not as much detail.
19. Small disk found under the stage that regulates the amount of light
that reaches the specimen
20. Large knob on the side of a microscope that should be used first
when viewing a slide
22. Small glass or plastic piece that is used to cover a water drop on a
slide.
23. Refers to the type of microscope Leeuwenhoek created with one
lens
Down:
1. Provides light to allow you to view materials on a glass slide
2. Developed one of the first compound microscopes by placing
several lenses in a tube
3. When viewing objects under ___-power, the field of view is
smaller, but you are able to see more details.
4. Type of light source that reflects light rays
5. Bottom portion of the microscope
6. Used a compound microscope to discover that living things are
composed of cells
7. Found on the nosepiece; range from low to high power
9. Refers to the amount of a specimen we are able to see; decreases as
the power of magnification increases
10. Used to hold a slide in place on the stage
11. Small knob on the side of a microscope that helps you focus the
microscope
12. Part of the microscope that holds the objective lenses and is able
to rotate to change magnification
14. Type of microscope made up of two or more lenses
16. Rectangular glass plate used to view samples of water or other
materials
18. Part of the microscope that should be used when it is carried
21. Part of the microscope that supports the slide being viewed.
1. Leeuwenhoek
8. Magnification
13. Eyepiece
15. Ocular lens
17. Low
19. Diaphragm
20. Coarse
22. Cover slip
23. Single lens
1. Light source
2. Janssen
3. High
4. Mirror
5. Base
6. Hooke
7. Objective lens
9. Field of view
10. Stage clips
11. Fine
12. Nosepiece
14. Compound
16. Slide
18. Arm
21. Stage
Answer:
Known as the “Father of Microscopy” Leeuwenhoek
8. Refers to the power of a microscope; calculated by multiplying the
power on the objective by the power on the eyepiece
13. Part of the microscope that contains the ocular lens
15. Type of lens found in the eyepiece
17. When viewing objects under ___-power, you are able to see a
larger field of view, but not as much detail
Explanation:
the cellular process that enables the cells to grow and develop into tissue is
Answer: Mitosis
Remember, mitosis is the process where a single cell divides resulting in generally two identical cells, each containing the same number of chromosomes and genetic content as that of the original cell.
If you're interested in the stages
Mitosis:
1. Interphase- Two sister chromatids centrosomes have replicated.
2. Prophase- Chromosomes condense, and spindle apparatus begins to form.
3. Prometaphase- Nuclear envelope breaks down. Microtubules contact chromosomes at kinetochores.
4. Metaphase- Chromosomes complete migration to middle of cell.
5. Anaphase- Sister chromatids separate into daughter chromosomes, which are pulled to opposite poles of spindle apparatus.
6. Telophase- Nuclear envelope re-forms, and chromosomes de-condense.
Cytokinesis:
1. Cell division begins- Actinmyosin ring causes plasma membrane to begin inching in.
2. Cell division is complete- Two daughter cells form.
A lot of information, but good to know.
Good luck!
Mitosis
Mitosis is the cellular process that enables the cells to grow and develop into tissue.
Explanation;Mitosis is a type of cellular division which takes place in the body cells where a parent cell divides to two daughter cells that are identical to the parent cell.Mitosis plays various important roles in living organisms which includes; asexual reproduction in single-celled organisms such as amoeba. It is also important in growth of animal and plant by creating cells necessary to add more mass to the body of a plant or animals.Additionally, mitosis plays an important role in tissue repair. This takes place when organisms are injured to replace damaged tissues.What best describes the temperature of a city located along a windward coast
The answer is : Cooler summer temperatures than an inland location at the same latitude.
-your welcome ;)
A city located along a windward coast usually experiences moderate and stable temperatures. The sea's influence brought by prevailing winds results in cooler summers and milder winters compared to inland cities. This effect is known as maritime influence or coastal moderation.
Explanation:The temperature of a city located along a windward coast is typically more stable and moderate compared to cities situated inland. Windward coasts, those facing the direction from which prevailing winds blow, are greatly impacted by the nearby body of water. Ocean water heats up and cools down more slowly than land does because of its high specific heat, which results in coastal areas having milder temperatures and less temperature variability.
For example, if the prevailing wind is blowing from the sea towards the shore, which is the usual case for windward coasts, it carries with it the influence of the sea temperature. This generally results in cooler summers and milder winters compared to cities that are located inland. This effect is otherwise known as maritime influence or coastal moderation.
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Climate can have a big impact on populations. Why do you think that heat-related deaths can be greater in cities at higher latitudes than in more tropical cities?
In an experiment, what is the factor that is tested? control specimen hypothesis variable
The factor being tested is the variable. There are two types of variables, independent and dependent. The independent variable is the factor being changed by the scientist or the person controlling the experiment. The dependent variable is the thing that gets changed due to the changing of the independent variable. The dependent variable cannot be changed physically by the person doing the experiment.
In an experiment, the factor that is tested is termed as the variable. It can be defined as any characteristic, condition, or value that can be manipulated or tested within the experiment's parameters.
Explanation:In an experiment, the factor that is tested is known as the variable. The variable can be defined as the characteristic, condition, or value that can be changed or controlled in an experiment.
It's essentially what is being manipulated or tested in the experiment. For example, if you are studying the effects of sunlight on plant growth, the variable could be the amount of sunlight the plants receive.
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What is top soil? How do living things help form topsoil?
Topsoil is the upper, outermost layer of soil, usually the top 2 inches to 8 inches. It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. Four elements constitute the composition of soil.
Animals burrowing and plant roots growing down into the soil create the pores in the soil for the air and the water.
The organic matter in the soil comes from the decay of dead plants and animals. Earthworms, bacteria and fungi are just a few of the organisms that live in the soil, feed on the organic matter and decay or recycle plant nutrients. All of the organisms that live in the soil are such an important part of the continuous, natural process of decomposing organic materials and preparing the soil for future plant growth
When a baby was five months old she weighed 8 kg after seven years the baby has grown into a girl weighing 25 kg where did her increase in mass come from
The girls mass would have increased as she is growing and the bones in her body are growing and becoming stronger. Her weight would also change drastically as she’s getting older. Peak bone mass is influenced by a variety of factors: some that you can't change, like gender and race, and some that you can, like nutrition and physical activity. Calcium is an essential nutrient for bone health. A well-balanced diet including adequate amounts of vitamins and minerals such as magnesium, zinc, and vitamin D is also important.
The increase in mass as a child grows can be attributed to the natural growth patterns which include rapid weight and length gains during infancy, followed by a pubertal growth spurt in girls around 8-9 years old.
The question of where a child's increase in mass comes from as they grow is answered by understanding the biology of human growth. Initially, a baby may experience rapid growth in both weight and length, with an average gain of about 28 g (1 oz) per day during the first two months, and then around 0.45 kg (1 lb) per month for the remainder of the first year. This trend means an infant typically doubles their birth weight by six months and triples it by one year.
As children age, growth rates vary. Between the age of 4 and 6, growth tends to slow down, with children gaining 5-7 pounds and growing approximately 2-3 inches per year. However, as girls approach the ages of 8-9, they experience a pubertal growth spurt, outpacing the growth rate of boys, and this spurt continues until around 12 years old. During this time, girls also begin their menstrual cycles, which coincides with their most rapid period of growth.
Therefore, the increase in mass of the girl from the age of 5 months to 7 years can be attributed to the natural and expected growth patterns during early life, including both the gradual weight gain from infancy and the more pronounced growth spurt associated with puberty.
suppose that the amino acids that make up an enzyme’s active site are changed. how might this change affect the enzyme?
Enzymes are biological catalysts that bind with chemical compounds known as substrates.
What is the enzyme-substrate relationship?The enzyme has a specific site for the substrates to bind. The active site of the enzyme is specific to substrate, which functions as a lock and key mechanism.The active site of the enzyme changes, then the substrate will not be able to bind to the active site, hindering the biological activity of the enzyme.Thus, the active site of the enzyme changes, then it will not be able to bind the substrate.
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How gypsy moth being controlled?
Gypsy moth can be contolled through;
Maintaining a clean yardUsing Gypsy moth trapsUsing less toxic botanic insectside such as natural pesticidesUsing a Tanglefoot paste barrier.please I need help pronto
they use them as symbols so dont get it wrong
How does sexual reproduction increase the genetic diversity among a population? ANSWER CHOICES: A) increasing mutation rate in offspring B) increasing mutation rate in parents C) copying genes from 1 parent to form many offspring D) combining genes from 2 parents into 1 offspring
I have to say D is the most logical answer
what is the difference between predation and competition
In predation, one population is the resource of the other. One can conceptualize competition as occurring horizonatally on the same resource level, while predation takes place vertically between different resource levels. Competition and predation comprise environmental pressures on the interacting populations.
Which statement about controlled experiments is true?
A) In a controlled experiment, all variables must be kept the same
B) Controlled experiments cannot be conducted on living things
C) A controlled experiment only tests one variable at a time
D) Scientists always utilize controlled experiments
The answer is
C) A controlled experiment only tests one variable at a time
In a controlled experiment, only one variable at a time is changed while all others are kept constant. This type of experiment can be performed on living things, and while important in scientific research, are not used in every instance.
Explanation:The correct statement about controlled experiments is 'C) A controlled experiment only tests one variable at a time'. In a controlled experiment, the investigator changes one variable while keeping all other variables constant. This approach ensures that any observed changes in the experiment can reliably be attributed to the variable that the investigator intentionally manipulated. Controlled experiments can indeed be performed on living things, and while they're a key tool in the scientific method, it's not accurate to say that scientists always use them because some research questions may not lend themselves to controlled experiments.
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The aerobic phase of cellular respiration in the mitochondrion produces a net of about 28 to 30 ATP molecules. How does this compare to the energy released in glycosis?
Answer:
More ATP is produced in mitochondria
Explanation:
Glycolysis is the first stage of cellular respiration. It is a common process of both anaerobic and aerobic respiration. It occurs in the cytoplasm of a living cell. During glycolysis 4 ATP and 2 NADH is produced and 2 ATP is used up. Thus, there is net gain of 2 ATP. The completion of cellular respiration takes place in mitochondrial matrix and on inner membrane, where all the co-enzymes NADH and FADH₂ oxidised to release ATPs. On oxidation each NADH produce 3ATP and each FADH₂ produces 2 ATP. Total 10 NADH is produced during complete oxudation which yield 30 ATP and 2 FADH₂ yields 4 ATP. Thus, in the mitochondria more ATP is produced as compared to glycolysis.
The aerobic phase of cellular respiration where a net amount of 28 to 30 ATP is generated is distinct from glycolysis in terms of the amount of energy generated because only 2 ATP are generated from the latter.
During glycolysis, glucose molecules undergo a series of reactions in which 2 molecules of pyruvates result along with 2 molecules of ATP as well as 1 molecule of NADH. More specifically, 4 ATP are produced but 2 are consumed back in the process, meaning that the net number of ATP produced is 2.
If this amount of ATP is compared to the aerobic phase of cellular respiration (Kreb's cycle and electron transport chain), one would see that about x14 to x15 of the amount of energy generated in glycolysis is produced in the aerobic phase.
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Using the group of cards just described in this lesson, the probability of drawing a red five is 1/14, 1/100, 1/56, 7/56
The probability that you could draw a red five is 1/56
In the picture below how would you describe the cell organelle and its function for letter A
A fish feeds on algae in a pond. As a result, there is an energy transfer between trophic levels in the ecosystem. What is the name of the cellular process that releases energy from the algae so it can be used by the fish?
Answer:
Explanation:
Cellular respiration is a process through which the glucose in food is oxidised and broken into carbon dioxide and water as products. Also there is release in energy in the form of ATP.
The fish will assimilate the food by oxidizing the glucose present in algae as a result of this the food will be broken into simple components along with energy which can be used for metabolism in fish.
What’s the paired with their function
was phenylthiourea a competitive inhibitor or a noncompetitive inhibitor?
Phenoloxidase is a key enzyme of melanization catalyzing the oxidation of phenols. Phenylthiourea (PTU) is the well-known and widely used inhibitor of phenoloxidase. However, the mechanism of its action is not quite clear.