Answer:
A. Law of Conservation of Energy
Explanation:
The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. ... In other words, energy cannot be created or destroyed.
Law of Conservation of Energy is the law that states energy cannot be created or destroyed it can only change to different forms.
What do you mean by conservation of energy?The law of conservation of energy states that the amount of energy is neither created nor destroyed. For example, when you roll a toy car down a ramp and it hits a wall, the energy is transferred from kinetic energy to potential energy.
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.
The principle of energy conservation states that energy is neither created nor destroyed. It may transform from one type to another.
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Help identify the independent and dependant variables and draw the line graph
PLZZZZ HELP!
What is either broken down or released during the first stage of cellular respiration? glucose
oxygen
water
energy
carbon dioxide
Answer:
I think its oxygen that's my answer
Evidence of what feature is found in South Africa, despite South Africa’s relatively mild climate?
mountains
glaciers
coal fields
tropical plant fossils
Answer:
glaciers
Explanation:
Answer:it’s B
Explanation:
The mode of reproduction that requires a single parent and produces offspring that are genetically the same as the parent is -
asexual reproduction
sexual reproduction
unicellular reproduction
prokaryotic reproduction
Answer:
Asexual reproduction
Example:
Strawberry plants reproduce asexually through runners in the soil that sprout to create new strawberry plants.
After asexual reproduction, the newly produced organism will look identical to the parent being as only one parent was involved, therefore only one set of genes was introduced not making a genetic differece.
3.
In the human body, food is transformed into various kinds of energy. The nervous system consists of many cells called neurons. These neurons send electrical signals across the body. This means that in some parts of the human body, the energy transformation is:
Electrical to chemical
Chemical to electrical
Radiant to chemical
Radiant to electrical
Answer:
The chemical energy
Explanation:
The chemical energy stored in food is a type of potential energy. Therefore, it can be transformed into kinetic energy. This transformation happens during chemical reactions that take place when the body digests food.
hope this helps
Answer:
Chemical to Electrical
Explanation:
The answer is B, because if you think about it, people always say you need to eat food to get energy, so you would be able to move. This saying comes in use in this question, as the food provides Chemical Energy, and gets transferred to Electrical Energy, to help you move around.
no one helped me so 15 points and brainliest to best answer please i need this done!
Bird feeders can be found in backyards around the globe. Some people like to watch as the birds flock to the feeders and peck at the seeds. Others may like the idea that they are offering a service by feeding the local birds in their neighborhood. But do bird feeders help native populations of birds? A recent study suggests that bird feeders may do more harm than good by increasing competition for food.
A team of scientists in New Zealand observed that bird feeders may be attracting more invasive, or non-native, birds. They conducted an experiment to see if this observation could be supported with data. The scientists set up 23 bird feeder locations scattered around urban areas. Food in the form of mixed bird seed and bread was offered daily at 11 experiment locations. "Twelve locations were left alone, without food, to serve as a control group. The number of birds that visited each location was counted daily. The study went on for almost two years. After analyzing the data, scientists discovered that the 11 experimental bird feeders attracted two to three times the number of invasive species of birds as the control group feeders. The control group feeders had approximately equal numbers of native and invasive birds visit them. The team of scientists noted that the increase in invasive species may have been due to the food choices that were offered at each feeder. Native birds typically eat fruit, nectar, and insects. Invasive birds were more attracted to the mixed bird seed and bread. The data supported the conclusion that backyard bird feeders were not helping native bird populations and suggested that invasive species are pushing out native species in competition for food.
The team of scientists also noted that they are not suggesting that people stop feeding the birds. They just want people to be aware of the types of food they offer and how often they fill the feeders. Making better choices in backyard feedings may help increase the number of local birds that visit while decreasing visits from invasive species.
Conducting backyard bird feeder experiments is a great way to see which local birds and which invasive birds are in your neighborhood. The more you know about the local bird populations and their food preferences, the better equipped you are to support them in a more positive way.
THE QUESTION------ How did the backyard bird feeders in the article increase competition in that ecosystem?
Answer:
birds don't like loud sounds and if its in the back yard the cars that go by wont effect the birds wane they take a bath
Explanation:
answer:
the backyard bird feeders in the article increased competition in that ecosystem because when those people put out feeders, it was a competition to the birds as in who would get the best food and also bird feeders usually only supply seeds which not all birds eat. as stated in the passage, native birds typically eat fruit, nectar, and insects, while invasive birds were more attracted to the mixed bird seed and bread. so the competition was that all birds who come by the feeders will not get the food that they may need to survive.
i hope this helped and have a lovely day!! :)
A car travels a distance of 200 meters in 10 seconds. What is the average speed of the car?
This is for science
Answer: The average speed is 10 m/s.
Please follow me as I am new to Brainly!!
The average speed of the car is 20 meters/sec if the car travels a distance of 200 meters in 10 seconds.
Average speed is the total distance that is covered or traveled by the total amount of time. The mathematical representation of the formula is:
[tex]\overline{v}={\frac{\Delta x}{\Delta t}}[/tex],here [tex]\overline{v}[/tex] = average speed,
[tex]\Delta x}[/tex] = total distance covered
[tex]{\Delta t}[/tex] = time
Given:
total distance covered = 200 meters
time = 10 seconds
average speed = ?
Solution:
Placing the given values in the mentioned formula for the average speed,
[tex]\overline{v}={\frac{\Delta x}{\Delta t}}\\\\\overline{v}={\frac{200}{10}[/tex]
= 20 m/s
Thus, the correct answer is - 20 m/s.
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.
Use the simple food chain below to answer the question about energy transformations.
It takes energy to live; therefore, when the owl eats the rat, the owl does not receive 100% of all the energy the rat consumed during its lifetime. What form of energy is “lost” in the ecosystem?
Thermal energy
Light energy
Electrical energy
Nuclear energy
Answer:
Hello. The answer is Thermal energy
Explanation:
During cell respiration as you know ، besides ATP and CO2 some heat is produced ،too.
This heat is the lost energy.
I hope this help you.
Help!
Describe the flow of energy in this food chain. Be sure to use the names of the organisms and what role they serve in the food chain (producer, consumer, or decomposer). If an organism is a consumer, identify whether it is an herbivore, carnivore, or omnivore.
Answer:
the tree/plant gets energy from the sun and water. the caterpillar gets food from the tree with converts into energy for the caterpillar, then the bird eats the caterpillar and the bird turns the energy from the caterpillar into more energy
Explanation:
PLEASE HELP WILL GIVE BRAINILEST TO THE FIRST CORRECT ANSWER!
how many cells result from each process?
Answer:
Sexual reproduction makes 4 cells, Asexual reproduction makes 2
Explanation:
Answer:
1. goes to 4
2. goes to 2
Explanation:
PLZZZZZZZZZZZZZZZZ HELP ME THISDUE TODAY AHHH SO STRESS!!!!
Using what you read in today's slides, determine whether you feel each piece of evidence from Elisa is sufficient or insufficient.
Evidence A: Elisa's sleep journal shows that she has gotten, on average, 9 hours of sleep each night for the past month.
1. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient
2.Why? Please explain.
Evidence B: The night before she came into the office, Elisa slept 7 hours.
3. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient
4.Why? Please explain.
Evidence C: Elisa kept a food journal for a month. Her journal shows that each day she ate between 6 and 8 servings of food with starch and between 2 and 4 servings of food with protein every day.
5.Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient
6. Why? Please explain. *
Evidence D: Elisa ate a lot of starch yesterday but still felt tired.
7. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient
8. Why? Please explain.
Evidence E: On the day before she began her journal, Elisa said she always felt tired even though she ate well and slept a lot at night.
9. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient
10. Why? Please explain. *
1.a
I would presume this to be sufficent due to the fact that Elisa's sleep journal states that she has gotten 9 hours of sleep for the past month thus she is having the same amount of sleep and there is probably another conclusion.
2.b
this information is not sufficient because there is the only information of the amount of time that she slept the night before she went to the office and there could have been a different amount of time that she slept the days before therefore making this information insufficient.
3:a
this information is sufficient because Elisa states the amount of servings that she eats and tells the number of servings that have either protein or starch.
4.b
this is insufficient evidence because there is no information telling what else Elisa ate and what type of food it was which could have been a factor of her being tired.
5.b
I would consider this evidence as insufficient because Elisa only states that she ate well and slept a lot rather than stating the amount of time that she slept and the type of food that she ate because those can be a factor in her feeling tired.
plzzzzzzzzzzzzzz helppppppppppppp
Answer:
i think its owls and snakes
Explanation:
i hope this helps you :)
Answer:owls and snakes
Explanation:
What do you think would be some challenges to life in the DESERT?
is paper biotic or abiotic
biotic=living or came from living
abiotic=dead or nonliving
paper fits both because it is from trees but it has been processed what the answer.
Which locations are Carbon pools?
a Ocean
b Atmosphere
c Forests
d Fossil Fuels
e All of the above
25 POINTS PLSSS NEED HELP
Answer:
d or b because I did it before but I forgot wish ine
Why is biodiversity so high in temperate deciduous forests and so low in desert or tundras?
Does the volume of gas vary directly with temperature?
Yes Volume directly varies with temperature.
As we know,
PV= nRT
so it means Volume is directly proportional to Temperature
The following is an aquatic ecological pyramid.
Which trophic level represents the secondary consumers or the organisms that rely on the herbivores? How does their energy compare to the primary consumers?
B; the secondary consumers have more energy than the primary consumers.
B; the secondary consumers have less energy than the primary consumers.
C; the secondary consumers have more energy than the primary consumers.
C; the secondary consumers have less energy than the primary consumers.
The text shows an example of a sedimentary rock.
Large and small shells embedded in light colored rock.
Which feature of this rock demonstrates that it is an organic rock?
the varying sizes of its rock fragments
the visible pieces of sediment it contains
the ocean animals deposited in its layers
the crystals of dissolved minerals it contains
Answer:
Answer choice c
Explanation:
this is because, in order for it to be organic, it would have to be made by plant and animal waste, or fossils of plants ans animals
Answer:A
Explanation:I think because natural things don’t come out perfect.
I’ll give brainliest!!
Please help me fill in the blanks.
Answer:
Water Cycle
Explanation:
If you look up on google the water cycle it should help.
Sorry I couldn't give you a direct answer the picture is kinda blurry no offense.
Can someone please help me.
BTW use the first picture to help
Answer: Can you please type your questions? They are not easy to read.
Explanation: Because they are blurry.
The chart shows parts of the body at different levels of organiztion. Which picture can best be used to fill in box S.
The 1st picture is the chart and the other 3 are the answers.
The 1st body is option A
The lungs is option B
The 2nd body is option C
Answer: I think that it is option option B
Explanation:
Because the bodie sbasically sum up all of the options that the first chart has. It is missing the lungs so the answer would be option B
Pls mark brainlyest!!!!
Answer:
C.
Explanation:
Because it connects to the heart and it takes the red blood vesels to diffrent parts of the body.
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In the figure above, which letter represents the neritic zone?
Answer:
B
Explanation:
The neritic zone is the relatively shallow part of the ocean.
Hopefully this image helps!
PLZZZZZZZZZZZZZZZZZZZZZZZ HELPME THIS DUE TODAY
1. Where does the body get glucose molecules?
2. Where does the body get amino acids?
3. Where does the body get oxygen?
4. What do you think could happen if the human body doesn’t take in one or all of these molecules? Why do you think this?
Answer:
1.This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.
2.Humans can produce 10 of the 20 amino acids. The others must be supplied in the food. Failure to obtain enough of even 1 of the 10 essential amino acids, those that we cannot make, results in degradation of the body's proteins—muscle and so forth—to obtain the one amino acid that is needed.
3.The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion. The oxygen-rich blood returns to the heart.
4. If the human body doesn't take in one or all of these molecules we'll simply die or we'll be in severe health issues. We use glucose as a form of energy, if we don't take in any energy we'll die. We need amino acids to help break down food in our body, if we don't we'll be in very severe health issues. And of course we need oxygen to be alive. We need oxygen for respiration and photosynthesis to take place. We also need oxygen to burn the fuel in our body to produce energy.
hope this helps and have a great day:)
Glucose molecules are energy carrying molecules that provides the body with the necessary energy that it requires to function properly and a very important source of glucose is Carbohydrate rich foods like maize.
While amino acids are necessary for the proper functioning of the Human system and also a second source of energy. A very important source of the amino acid is animal protein.
When any of these molecules are missing the human body cannot maintain homeostasis which will result in severe health conditions and death.
Hence we can conclude that the body gets glucose from carbohydrate foods, amino acids from animal protein and oxygen from the atmosphere.
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can you guys help me, please
Why is it necessary for living organisms to have enzymes to speed up chemical reactions?
Answer:
enzymes are biocatalysts made up of proteins which increases the rate of bio chemical reaction by lowering down the activation energy
Explanation:
since activation energy of the chemical reaction gets lowered by enzymes as a result it speed up the process of metabolism in living organism
The base of aquatic energy pyramids are formed by
Group of answer choices
aquatic insects and snails
fish
Plankton
Frogs
Lesson Slides
2.2: Evaluating Energy Sources
Due Date
Tuesday, October 27, 2020 11:59pm
Resources
Harnessing Human Energy Glossary
Directions
Use the lesson slides as you work through each activity. These are where you will access all of the resources needed to complete this lesson guide.
Provide your responses in blue areas. Be sure to read and follow all of the directions.
Essential questions (orange) are questions we will keep trying to figure out through the lessons and will be able to answer at the end of the chapter or unit.
Key terms (blue) are important words or terms that you will become familiar with throughout the unit expected to know by the end. These can also be found in the glossary.
Activity 1
Reread the last two paragraphs of the “Energy Inventions” article below and highlight evidence that supports or goes against the claims:
Comparing Solutions
Using solar energy and capturing energy from humans are just some of the exciting ways people are using science to solve energy problems. There is no perfect solution, however. Solar energy relies on the sun and doesn’t work as well in the dark or on cloudy days. For example, if you were using your Little Sun to read at night and it ran out of energy, you would need to wait for the sun to come up so that more energy could be captured and transferred to the battery in your light. Just imagine if the next day was very cloudy! Your energy system would not be able to capture very much energy from the sun, so your light would not stay on for long.
The Little Sun lamp and the Hollow Flashlight have something in common: they get energy from somewhere else instead of making it themselves. In fact, that’s true of every object in the universe. Engineers must think about energy sources as they design their inventions. They must find an energy source that will do a good job of transferring energy to the object. The Little Sun lamp gets energy from the sun, while the Hollow Flashlight gets energy from the human body. There are many other possible energy sources to consider. For example, some devices transfer kinetic energy (energy of motion) from wind, water, or even people to power devices! There isn’t a single right way to provide energy when there’s no electrical grid available, and each source has its strengths and drawbacks. Which energy source would YOU choose?
Which claim do you think is most convincing based on the evidence you have gathered so far?
Activity 2
Ranking Energy Sources for the Rescue Team in the Doc.
Read each Energy Source Card carefully and discuss your questions and ideas about each energy source with your partner.
Next, arrange the cards in order of best to worst energy source options for the rescue team.
When you are finished sorting the cards, answer the question in your Doc.
Best Energy Source ↑
Worst Energy Source ↓
Which energy source did you rank as the best option for the rescue team? Why?
Activity 3
Complete the flashlight Energy Diagram by moving each image to match the form of energy it represents.
Potential Energy
Light Energy
Transfer- to move from one object to another or one place to another
Convert- to change from one type to another
Describe how energy moved through the system. Be sure to include your new vocabulary words where necessary.
Key Concept 4: Nothing creates energy. If something has energy, the energy must have been transferred from something else.
Key Concept 5: Energy can be transferred from one object to another, and energy can be converted from one type to another.
Activity 4- Homework
Complete each scenario by moving each image to match the form of energy it represents. Make sure to COPY (CTRL+C) and PASTE (CTRL+V). Describe how energy moved through the system in the box below the diagram. Be sure to include your new vocabulary words where necessary.
Scenario 1- Power a flashlight with a battery, using energy from the sun as the energy source
light energy
potential energy
light energy
Scenario 2- Power a flashlight with a battery, using energy from fuel (gasoline) as the energy source.
potential energy
potential energy
light energy
Scenario 3- Power a flashlight with a battery, using energy from food as the energy source.
potential energy
kinetic energy
potential energy
light energy
Go back and check that you have answered all questions (written in the blue areas). Then turn in your work on Google Classroom, by 11:59 PM on the day that it is due.
Answer:
activity 2
Explanation:
True or False: The pressure of gas cannot vary directly with temperature
Answer:
true
Explanation:
the pressure of gas is proportional to its temperature (amantons law)
Which sentence best describes how energy flows through an pyramid?
The organisms at the bottom level provide energy directly to organisms in all the other levels
.
Some energy is transferred from organisms in one level to those in the level above.
Energy is transferred down each level of the energy pyramid.
The energy lost at each level is consumed by organisms in the top level.
Answer:
The energy lost at each level is consumed by organisms in the top level.
Explanation:
Energy is transferred down each level of the energy pyramid. So that is the best sentence!
PLEASE HELP 5TH GRADE WORK IM RUNNING OUT OF POINTS
I am having difficulty finding a model of a t-cell that displays the organelles of a t-cell and its functions. So please link or create a model of a t-cell.