In the investigation about how the dog decreases the amount of stress, the dependent variable is the stress levels while the independent variable is the time expended with the dog.
What is the independent variable?The independent variable is a variable that isn't changed along the experimental procedure (in this case time), while the dependent variable is modified by the conditions.
In conclusion, in the investigation about how the dog decreases the amount of stress, the dependent variable is the stress levels while the independent variable is the time expended with the dog.
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Many surface military ships use sonar as one method for detecting submarines. How would the temperature, density, and salinity of water affect the usefulness of sonar,and why?
Answer: Density
Explanation:
Actually those three things are really just one thing. Density.
Temperature affects density.
Salinity affects density.
Density affects the speed of sound through water.
Alterations to the speed of sound through water alter the path of soundwaves propagating through the water.
Sooo…
With increasing depth, comes decreasing temps as water gets colder the deeper you go. Cold water is denser than warm. Sound waves angled down into the depths eventually become curved back towards the surface.
This creates a rather interesting effect. While a sonar could normally detect a target at a certain range or less, these “Convergence Zones” where sonar waves are reflected back to the surface create annular rings of detection beyond the normal detection range.
This bending of soundwaves can also create “dead zone” where the soud waves just do not reach from a particular location. creating sound shadows where the sonar does not see.
In many locations in deep water, there can be a sudden shift in the rate of temperature change, usually located between the upper part of the ocean where temps can vary with seasons and the lower Isothermic layer where the temps change very little. This creates a layer called the thermocline Sonar detection across the layer Where the sonar and target lay on opposite sides, above and below the layer…is reduced compared to sonar detection where both sonar and target are on the same side of a layer.
So the temperature of water, which varies widely with depth, can cause the ray path of soundwaves to bend and reflect and even converge, creating both increased areas of detection as well as blind zones of reduced detection.
Salinity also affects density, With salt water being denser than Freshwater.
So areas wher there is a high degree of turbidity and mixing of these two types of water, like near the mouth of a large volume discharge of water, can create very unpredictable sound channels that are constantly changing. this make sonar performance prediction very difficult and affects the Sonar’s ability to detect targets.
A student preparing for a hike wants to pack a snack that has biomolecules that provide quickly available energy but few excess calories. The student claims that snack #4 would be best choice. Which reasoning statement supports this claim?
1
2
3
4
Answer
A
Snack # 4 has less carbohydrates than snack # 1 and fewer calories than #3 so snack #4 is the best choice.
B
Snack #4 has more carbohydrates than snacks #1 & 3 and fewer calories than snack #2, so snack #4 is the best choice.
C
Snack #1 does not have any carbohydrates and very few calories, so snack #4 is the best choice.
D
Snack #3 has more calories and carbohydrates than # 4, so #4 is the best choice.
Answer: B
i think that's correct bc u want carbs
A family has a Y-linked disease that affects the father. What is the chance of a male offspring inheriting th
A 100%
B. 50%
C. 25%
D. 0%
The chance of a male offspring inheriting the disease is A. 100%.
Why are enzymes so important? What do they do for you? *
Answer:
Enzymes are important because it's a type of protein that you can find in a cell, enzymes create and can speed up chemical reactions in the body which help support life. Enzymes are natural and they can help with gaining/building muscle, getting rid of toxins, and breaking down food particles
I hope this helps! Brainliest would be very much appreciated!
HELP The following are biogeochemical cycles, important for recycling and balancing Earth's materials that are essential to
life.
O hydrologic, rock, and tectonic cycles
O tectonic, hydrologic, and carbon cycles
O rock, phosphorus, carbon, and nitrogen cycles
O hydrologic, carbon, phosphorus, and nitrogen cycles
The hydrologic, carbon, phosphorus, and nitrogen cycles are critical for recycling and balancing the Earth's life-supporting components.
Which of the following biogeochemical cycles is crucial for recycling and maintaining the balance of Earth's materials?Living creatures depend on the water, carbon, nitrogen, phosphorus, and sulfur biogeochemical cycles.
A biogeochemical cycle's definition Why is it necessary for the recycling of elements?The abbreviation "biogeochemical" refers to the analysis of each cycle's biological, geological, and chemical components. The nonliving (abiotic) components of the biosphere exchange elements with the living (biotic) components through biogeochemical cycles in a variety of ways.
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Which of the following is an example of a necessary chemical in a living organism?
Oxygen, carbon, hydrogen, nitrogen, sulfur, and phosphorus are necessary chemicals in a living organism.
Which of the following is an example of a necessary chemical in a living organism?The chemical elements which are present in our atmosphere and plays a very important role for our living is oxygen, carbon, hydrogen, nitrogen, sulfur, and phosphorus. These are the chemical elements which makes the life possible on the surface of earth. These makes the 99% of the life on earth. The four most abundant elements which are found in our body are hydrogen, oxygen, carbon and nitrogen. These elements form all parts of our body because these elements attached with one another forming parts of our body.
So we can conclude that Oxygen, carbon, hydrogen, nitrogen, sulfur, and phosphorus are necessary chemicals in a living organism.
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what’s the function of nucleic acids
Explanation:
carry genetic information which is read in cells to make the RNA and proteins by which living things function.
what is water called that has become a solid
Answer:
hello there the answer is ice
Think of the different lobes of the cerebral cortex. Which one of these lobes would you select if you
were told that you had to accept damage to one of the lobes, damage that would last for the rest of your life?
What symptoms would you expect as a result of that damage? Why did you select that lobe?
Answer:
occipital lobe. i wouldn't be able to see or process visual images. I selected this lobe cuz im legally blind anyways
Explanation:
Describe the role of nitrogen fixation in the tissue formation of producer organisms
Microorganisms that fix nitrogen in nitrogen fixation can obtain assimilative [tex]N[/tex] for plants in a way that crops cannot. It is absorbed by bacteria from the atmosphere as a gas and released to the soil, mostly as ammonia.
The purpose of nitrogen-fixing bacteria is to provide plants with a crucial nutrient that they are unable to receive naturally from the air. The process by which nitrogen gas ([tex]N_{2}[/tex]) from the environment is integrated into the tissue of specific plants is known as biological nitrogen fixation (BNF). Using soil microorganisms as a source of [tex]N[/tex], only a small subset of plants can do so. Nitrogen fixers, nitrifying bacteria, and denitrifying bacteria, including Rhizobium, Nitrosomonas, Nitrobacter, Pseudomonas, and Thiobacillus, are among the organisms that participate in the nitrogen cycle. The majority of nitrogen fixation is done spontaneously by bacteria in the soil. In the soil, nitrogen is fixed and exchanged in several forms. Some bacteria adhere to root growth and form symbiotic relationships with plants that are advantageous to both the crop and the bacterium.
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The energy derived from_____
is used to produce ATP
Answer:
the breakdown of foodHope this helpsace that workGood luck ✅Answer:
Glucose.
Explanation:
Hope this helps!
4. Describe how scientists study subjects in which experiments are not
possible.
7.
D
t
In general, lawns should be watered until the moisture has penetrated to a
depth of
inch(es).
a.
b.
C.
d.
one
two to three
four to six
eight to ten
Answer:
dcgsdfgsdfg
Explanation:
sdfgsdfgsdfg
How does a human body get energy from the food molecules
Explanation:
When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream.
Some species of hares are brown most of the year, but change color to white in the winter. This allows them to
blend in through the seasons.
Where are these organisms adapted to live?
A deciduous forests
B desert
C tropical rain forests
D savanna
Explanation:
c is the answer of the question.
Some species of hares are brown most of the year, but change color to white in the winter. This allows them to
blend in through the seasons.
Hares that are brown in summer turn white in winter . This allows them to blend in Desert seasons (both hot and cold) . Therefore, option ( B ) is correct.
What is adaptation ?Adaptation is defined as "the physical or behavioral characteristic of an organism that helps an organism to survive better in the surrounding environment." All living things have become adapted to the habitat in which they have chosen to make their home. This is due to the fact that they possess unique characteristics that aid in their ability to adapt.
There is a fascinating adaptation that snowshoe hares have developed that helps them avoid being eaten by predators. Their fur can take on a variety of colors throughout the year depending on the weather. Snowshoe hares have white fur in the winter, which allows them to blend in better with the snowy environment. The snowshoe hare's coat takes on a rusty-brown color during the spring and summer months as the seasons change.
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Why is osmosis important to the survival of a cell
Answer & Explanation:
Osmosis helps in stabilizing the internal environment of the organism by balancing the levels of water and intracellular fluids. Also, the nutrients and minerals enter the cell by osmosis which is necessary for the survival of cells.
Pls, choose me as brainliest!
how is the nucleus of a helium atom different from the nucleus of a lithium atom?
Answer:
A helium atom has a heavier nucleus and two electrons, A lithium atom has a still heavier nucleus and three electrons.
Explanation:
Compare scientific theories and scientific laws by writing each characteristic in the chart
below in the correct location on the Venn diagram.
Answer:
Law:
- based on empirical evidence
- describes a pattern in nature
- ex natural selection
- rarely changes
Theory:
-explanation of many related
-gravitational attraction
middle: - changes w new observations
-
Explanation:
how do you think DNA shows organization? biology
yes
Explanation:
DNA (deoxyribonucleic acid) is the biomolecule that contains all the information necessary to generate an organism and maintain its functioning.
have a good day:)

the biotic components of the environment of a pronghorn and a starfish respectively are
Predators, competition, and parasites are the respective biotic components of a pronghorn and a starfish.
What do you mean by biotic components?Biologic components are living things that influence other organisms in an environment either directly or indirectly. Take microorganisms, plants, and animals along with the garbage they produce as an example. All chemical and physical components of an ecosystem are considered to be non-living, or abiotic, elements.
Briefing:The ecosystem is made up of biotic components, which are living things that have an impact on other living things. An animal that preys on or consumes other creatures is a predator. Living things known as parasites rely on their hosts for nutrition and support.
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A student drops three blocks from the same height and measures the time it takes for the blocks to hit the ground. Each block has a
different mass.
What is the independent variable in the experiment?
O the mass of the blocks
O the volume of the blocks
O the time for the blocks to hit the ground
O the drop height
A student drops three blocks from the same height and measures the time it takes for the blocks to hit the ground. Each block has a different mass, then the independent variable in the experiment would be the drop height.
What is Gravity?
It can be described as the force that causes a body to draw another body toward its center as a result of its mutual gravitational pull.
A student, following the instructions in the problem, drops three blocks from the same height and timing how long it takes for them to strike the ground. Although there are many variables in the measurement because each block has a distinct mass, the drop height is constant for each block and is therefore regarded as the independent variable.
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Mendel conducted experiments with pea plants in order to:
• A. determine how to
grow the best
pea plants.
B. determine how traits are
created in organisms.
C. determine how traits
are passed to offspring.
O D. determine how to produce more peas for food.
Mendel conducted experiments with pea plants to determine how traits are passed to offspring.
Gregor Mendel describes his experiments with peas showing that heredity is transmitted in discrete units.
From his work on pea plants, he discovered the fundamental laws of inheritance and he deduced that genes come in pairs and are inherited as distinct units, one from each parent.
From the earliest time, people noticed the resemblance between parents and offspring, among animals and plants as well as in human families.
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Forensic toxicologist John Trestrail thought there was something curious about the Crippen case. He decided to
further investigate. What was MOST likely his most pressing question about the case?
Why use poison then dismember the body?
Why would a husband kill his loving wife?
What happened to Crippen's secretary?
Did Dr. Crippen have a motive to kill Cora?
The use of poison and then dismember the body to Crippens secretary.
The CSI effect was first described in the media as a phenomenon resulting from watching forensic and crime programs on television. This effect causes jurors to have unrealistic expectations of forensics during criminal trials, influencing juror decisions during the conviction or acquittal process. CSI viewers rated the hair evidence as unreliable. This is a statistically significant difference compared to non-viewers.
Schweitzer and Saks' findings suggest that consideration of CSI may influence jurors' attitudes to forensic evidence. The first police crime laboratory was founded in Lyon, France in 1910 by Edmond Locard. According to Locard's Barter Principle, it is impossible for a criminal to escape from a crime scene without leaving a trace. Each floor has its own property that serves as a signature feature.
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...
13. Explain the difference between a light microscope and an electron microscope.
Live things, dead things and more magnification
Carbon has 8 electrons in its outer shell and is a very stable atom
Question 1 options:
Unomers
Monomers
Dimers
Someone pls help
Answer: Monomers
Explanation: I took the quiz
A carbon that has 8 electrons in its outer shell and is a very stable atom is a dimmer.
What is carbon?Carbon is an atom that is found in the fourteenth group of the periodic table. There are two shells in a carbon atom. The outermost shell of the carbon atom contains four electrons.
We know that a bond is formed when two atoms are joined together. If we have known that each of the carbon atoms have four carbon electrons then we then are told that there are eight electrons in the outermost shell of the atom under study here.
It is then clear that a carbon that has 8 electrons in its outer shell and is a very stable atom is a dimmer.
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20 Points! Which molecules are considered organic?
1. those containing phosphorus
2. those containing carbon
3. all natural
4. those containing hydrogen
Answer:
carbon or carbon-hydrogene.
The number of significant figures in 200.000 is ?
The number of significant figures in 200.000 is six.
Significant figures are the number of digits that add to the correctness of a value, frequently a measurement. The first non-zero digit is where we start counting significant figures. Any two non-zero digits that are separated by a zero are important. For instance, the number 108.0097 has seven significant digits. Every zero that is both to the right and left of a non-zero digit and the decimal point is never meaningful. For instance, the number 0.00798 had three significant digits.
The correctness and precision of numbers are the focus of significant figures, also known as significant digits, which are crucial components of scientific and mathematical calculations. Significant numbers play a crucial role when estimating the degree of uncertainty in the outcome.
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complex animals such as dinosaurs appear in the archean Eon true or false
Answer:
animal
Explanation:
animal and plant ☘️ ☘️ ☘️ ☘️ ☘️ ☘️ ☘️ ☘️ I m not sure if you have any questions or concerns please visit the plug-in settings for your website is rr I m too much time is best to the answer for the answer for me to determine the whole thing was that she I I i i the plug-in I I m not sure if you have any other questions you have any of Ur self and I m not any questions you have received your website I couldn't answer
Arrange the events of the earliest stellar formation in sequential order.
Hydrogen atoms shed their electrons and fuse together to form larger helium atoms.
Pockets of elements in higher concentrations begin experiencing greater gravitational force.
The big bang occurs.
Hydrogen and helium disperse into the universe in uneven concentrations.
The temperature of gas clouds surpasses 14 million Kelvin.
The gas clouds begin reducing in volume, which leads to increases in density, pressure, and temperature.
The events of the earliest stellar formation in sequential order are as listed below:
"The big bang occurs.""Pockets of elements in higher concentrations begin experiencing greater gravitational force.""Hydrogen atoms shed their electrons and fuse together to form larger helium atoms.""Hydrogen and helium disperse into the universe in uneven concentrations.""The gas clouds begin reducing in volume, which leads to increases in density, pressure, and temperature."The temperature of gas clouds surpasses 14 million Kelvin.What is the stellar formation?The stellar formation can be defined as a process through which dense regions within molecular clouds of gas and dust in interstellar space collapse due to gravity and form stars.
What is a star?A star can be defined as a giant astronomical object that contains a luminous sphere of plasma and two (2) main hot gases (hydrogen and helium), and it is bounded together by its own gravitational force (gravity).
In conclusion, the earliest event of the stellar formation is that the big bang occurs while the final event is an increase in temperature of gas clouds, which generally surpasses 14 million Kelvin (14,000,000 K).
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hel pleaseeee
heart disease introduction
Heart disease refers to a type of disease that affects the ability of the heart to perform its function.
What is heart disease?The term heart disease refers to a type of disease that affects the ability of the heart to perform its function. There are several kinds of heart disease which are able to affect the basic function of the heart which is to pump blood around the body.
One of the major heart disease is hypertension which could be caused by several factors such as blockage of the blood vessels. Other kinds of heart disease include;
Coronary Artery Disease (CAD)Heart Arrhythmias.Heart Failure.Heart Valve Disease.Pericardial Disease.Cardiomyopathy (Heart Muscle Disease)Congenital Heart Disease.Learn more about heart disease:https://brainly.com/question/816481
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