Biology Middle School

A scientist burns samples of beets and potatoes to compare how much energy each contains. How can the scientist make this a controlled experiment?

A. Not use any responding variables

B. Use beets that are much larger than the potatoes

C. Make sure the beets and potatoes give off the same amounts of energy

D. Use the same mass of beets and potatoes

Answers

Answer 1

Answer:

hope you help

Explanation:

ans. C. Make sure the beets and potatoes give off the same amounts of energy

Answer 2

D. Use the same mass of beets and potatoes

Related Questions

The theory of evolution has changed over time. Initially, Lamarck believed that organisms developed traits in response to a changing environment to improve their chances of survival. Later Darwin proposed that organisms that already possessed traits suitable to a changing environment were more likely to survive and reproduce.

Which of the following does not explain why the theory of evolution has changed?

A. Lamarck’s theory was discarded when new scientific information became available.

B. Darwin collected empirical evidence to support that organisms with favorable traits survived and reproduced.

C. The theory of evolution became a scientific law after much debate and confirmation in the scientific community.

D. Other scientists such as Peter and Rosemary Grant have collected additional empirical evidence that supports Darwin’s findings.

Answers

………С……..
I thing is true

C is true. This is because it is still a theory of evolution not a law.

help??????????????????????????????

Answers

Answer: nonpolor

Explanation: hbdfd

Non poler hehehehe the

please answer the questions below

Answers

I can sender the first and if it is cooled it will go down and it heated up

Hi!

1. The particles will speed up as they gain more kinetic energy from their surroundings and try to escape. They will collide with the balloon more and cause gas pressure which over time will cause the balloon to explode.
2. The particles will slow down
3. It has more density unlike water which expands when it’s frozen. Normally a liquid has more volume and less density when heated.
4. 10°C 50°F
5. 0°C 35°C/36°C ( trick question it’s not 10 degrees less Fahrenheit but Celsius for both)
6. The air particles slow down, losing their energy to the surroundings in an attempt to change state.

Explain the asthma disorder.

Answers

Asthma is a chronic respiratory disorder that affects the airways, which are the tubes that carry air in and out of the lungs. In people with asthma, the airways become inflamed, swollen, and narrowed, making it difficult to breathe.

The exact causes of asthma are not fully understood, but it is believed to be a combination of genetic and environmental factors. Asthma triggers can vary from person to person, but some common triggers include:

Allergens such as dust mites, pollen, and pet dander
Irritants such as smoke, air pollution, and strong odors
Exercise and physical activity
Respiratory infections such as colds and flu
Symptoms of asthma can include:

Wheezing: a whistling sound when breathing
Coughing, especially at night or early in the morning
Shortness of breath or difficulty breathing
Chest tightness or pain
Asthma is typically diagnosed based on a combination of symptoms, medical history, and lung function tests such as spirometry. Treatment for asthma often includes medications such as inhaled corticosteroids and bronchodilators, which can help reduce inflammation and open up the airways. It is also important for people with asthma to avoid triggers as much as possible and to have an asthma action plan in place to help manage symptoms and prevent asthma attacks. In severe cases, hospitalization may be necessary.

Mark brainliest pls

Asthma is a chronic respiratory disorder that affects millions of people worldwide. It is a condition that causes the airways in the lungs to become inflamed, making it difficult to breathe. This inflammation can also cause the airways to become more sensitive to certain triggers, such as allergens, pollutants, and exercise.

The symptoms of asthma can vary in severity from person to person, but they typically include wheezing, coughing, chest tightness, and shortness of breath. These symptoms can be triggered by a variety of factors, including exposure to allergens such as dust mites, pollen, and pet dander; irritants such as cigarette smoke and air pollution; respiratory infections; exercise; and emotional stress.

Asthma can be classified as either intermittent or persistent, depending on the frequency and severity of symptoms. Intermittent asthma is characterized by infrequent and mild symptoms, while persistent asthma is characterized by frequent and severe symptoms that can affect a person's daily activities and quality of life.

Asthma is typically diagnosed through a combination of medical history, physical examination, and lung function tests. Treatment for asthma usually involves a combination of medications and lifestyle changes, such as avoiding triggers and improving overall health through regular exercise and a healthy diet.

Medications used to treat asthma include inhaled bronchodilators, which relax the muscles around the airways and allow them to open up, and inhaled corticosteroids, which reduce inflammation in the airways. In more severe cases, oral medications or injections may be necessary.

In addition to medication, lifestyle changes can also play an important role in managing asthma. For example, avoiding triggers such as allergens and pollutants, maintaining a healthy weight, and staying physically active can all help to improve asthma symptoms and overall lung function.

Overall, asthma is a complex and challenging disorder that requires ongoing management and attention. However, with proper treatment and care, most people with asthma are able to lead full and active lives, free from the limitations and symptoms of this condition.

Count the number of breaths you take in a minute and compare it with the number of times a fish opens and closes its mouth. Which of the two is faster? What could be the reason?

Answers

Answer:

breath we take in minutes

If we count the number of times the fish opens and closes its mouth in a minute it is less than the number of times of the human breathes in and out in a minute. Since amount of oxygen present in the water is less compared with the air the acuatic animals breath faster than terrestrial animals.

Using the CER method, explain how embryo development is used as evidence to support evolution.

Answers

Answer:

Evidence for evolution has been obtained through fossil records, embryology, geography, and molecular biology.

Explanation:

Evolution from Fossil record and more

Who is Vandana Shiva

Answers

Vandana Shiva is an Indian scholar, environmental activist, and author known for her work in the field of environmental sustainability, biodiversity conservation, and social justice. She was born on November 5, 1952, in Dehradun, India. Shiva has a background in physics and earned her Ph.D. in philosophy from the University of Western Ontario, Canada.

Shiva is a prominent advocate for sustainable agriculture, seed sovereignty, and the rights of small-scale farmers. She is known for her opposition to genetically modified organisms (GMOs) and the negative impacts of industrial agriculture on the environment and local communities. Shiva has been involved in grassroots movements and organizations, including Navdanya, which promotes seed conservation and organic farming practices.

Vandana Shiva has authored numerous books, including "Staying Alive: Women, Ecology, and Development," "Earth Democracy: Justice, Sustainability, and Peace," and "Making Peace with the Earth." She has received several awards for her work, including the Right Livelihood Award (Alternative Nobel Prize) in 1993. Shiva continues to be actively involved in raising awareness about sustainable agriculture, biodiversity, and social justice issues on a global scale.

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she 70 years old, she a researcher and founder of Navdanya

Why is MEIOSIS important? Select all that apply

Each new cell will have an exact copy of chromosomes

Each new cell will have half the number of chromosomes

Each new cell will have double the number of chromosomes

Meiosis results in the formation of a sex cell (egg or sperm)

Meiosis allows the body to make new skin, muscle, and bone cells

Answers

The first and the fourth options are the answer to the information above

Which best describes the purpose of a labor union?

Select the best answer choice.
A.
to represent the workers' needs to employers of a specific trade
B.
to represent employers' needs to workers of a specific trade
C.
to create job opportunities in particular industries
D.
to employ workers in a particular industry

Answers

D the answer is d becasue that is the one I picked and i got it right!

D because I also got the answer right

Why are tides on Earth higher than normal during spring tides?

-The Moon cancels out the gravitational pull of the Sun on Earth.

-The Sun comes closer to Earth and increases its pull.

-The Moon comes closer to Earth and increases its pull.

-The Sun combines its gravitational force with that of the Moon on Earth.

Answers

The correct answer is: The Sun combines its gravitational force with that of the moon on earth.

Yes, the answer is the sun combines the gravitational force with that of the Moon on earth
This is because when the moon is a full moon, the solar or sun is, and has an attractive effect to the lunar or moon

Scientists think modern green algae and plants are descended from ancient green algae that lived in the oceans. What are similarities between modern green algae and plants? (Select the 4 that apply.)

Answers

Answer:

Explanation:

They both contain similar chlorophyll(a and b)

They both have a 2-part life cycle

they both have the same cell walls

They both store energy as starch

answer with explains and reasons please ( ill mark brainlist )

Mount Everest is the world's highest mountain. It is 29,028 feet (9km) above sea level. It is located in the Himalayas between Nepal and China. But now that we have sonar, we know about Mauna Kea. Mauna Kea is on Hawaii Island. It is 13,448 feet (4km) above sea level. From its base on the ocean floor, it is 33,796 feet (10km)! Should we still consider Mount Everest to be the highest mountain? Why or why not?

Answers

Answer:

I think Mount Everest should still be called the highest mountain

Explanation: Based on tradition, mountains are not measured from their bases but from sea level so considering this Mount Everest should still be called the highest mountain in the world. However despite this, some may say it should not be.

Although Mount Mauna Kea is higher measuring from the sea floor, we usually measure the height of a mountain from above the sea level .In such case Mount Everest is the highest .But if your question is “the highest mountain from sea floor”, then it is Mount Mauna Kea.

where did the name '' hamster'' probably come from?
A. The animal was discovered by a person named Hamm.
B. People thought the animals looked like little hams.
C. It comes from a word meaning ''tiny''.
D. It comes from a word meaning ''to hoard''.

Answers

Answer:European Hamster

Smallest breed

Roborovski hamster

Stout-bodied rodents,

with tails shorter than body length, and have small, furry ears, short, stocky legs, and wide feet.

en.wikipedia.org

Popular breed

Golden hamster

They carry food in their spacious cheek pouches to their underground storage chambers. When full, the cheeks can make their heads double, or even triple in size.

en.wikipedia.org

Explanation:

a loanword from the German, which itself derives from earlier Middle High German hamastra

write a paragraph explaining the flow of energy through a food web.

write a paragraph explaining the flow of matter through a food web.

Answers

Answer:

#1 = The living organisms of an ecosystem are related through food chains, which gives rise to trophic levels in an ecosystem. There is a flow of energy from one trophic level to the other in a food chain. Producers bring energy from the sun into the community. Primary consumers eat the producers, which makes them herbivores in most communities. Secondary consumers eat the primary consumers, which makes them carnivores. Tertiary consumers eat the secondary consumers. A final link in the food chain are decomposers, which break down the organic matter of the tertiary consumers (or whichever consumer is at the top of the chain) and release nutrients into the soil. Thus, there is flow of energy from Sun ------> Producer ------> Herbivore -------> Carnivore ------> Decomposers.

#2 = The flow of matter is connecting to all of the subjects involved. Several animals benefit off of the plants, then their predators benefit off of them, and so on. If even one of the factors of this food web were to go extinct, the entire thing would be messed up.

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. Let's look at the parts of a typical food chain, starting from the bottom—the producers—and moving upward.

How is a gas different than a liquid

Answers

Answer:

Liquids (substances that exist in the liquid state) don't have any fixed shape and occupy a fixed volume. They are slightly compressible and take the shape of their containers. Gases (substances that exist in the gaseous state) don't have any fixed shape and don't occupy any fixed volume.

Hope this helps! :)

liquids take the shape of the container they’re in but occupy a certain volume

gases take the shape and volume of their container

During the night, you woke up to strong rains and wind. You’re not exactly sure which kind of storm occurred. In the morning, you see that a tree in your yard is split in two. This is the only damage and debris in the area.

What type of storm most likely caused the damage?

O cyclone
O hurricane
O thunderstorm
O tornado

WILL GIVE BRAINLIEST!!!! SO HURRY

Answers

It’s hurricane bc that’s the only possible way a tree could split in half

It’s most likely a hurricane

How can you help limit global warming? Pick one item from your home. Come up with a plan to make it more energy efficient.

Answers

Answer: Turn off lights when you leave a room to save energy, unplug any plugs left in of you're not using them, don't leave water running, don't waste food eat all foods so it isn't wasted

Answer:

Turn off lights when you leave a room to save energy, unplug any plugs left in of you're not using them.

PLEASE HELPME OUT I WILL GIVE BRAINLIESTUOSDFODH

Answers

Answer:

Manta ray and trigger fish

Explanation:

Both of these are feeding on primary consumers, which are consuming plants (the producers).

Manta ray and Trigger fish

Whether you think it is a good solution or not? Explain why

Answers

No not good enough you can do better

What is the Author’s message in the Passage?
D. People should save water.
E. Water will soon be limited.
F. We need to use more water.

Answers

Can you show the passage so I can help you

Answer:

Explanation:

In the passage, the Author lists many ways that you can conserve or save water.

Hope I helped! Please leave a comment or a rating!

What best describes ribosomes?

Answers

Ribosomes are cellular structures that synthesize proteins from amino acids. They are composed of ribosomal RNA and proteins and are found in both prokaryotic and eukaryotic cells.

Ribosomes are essential for gene expression and cell growth. They can be free in the cytoplasm or bound to the endoplasmic reticulum or the nuclear envelope.

An example of a ribosome function is the translation of a messenger RNA (mRNA) sequence into a polypeptide chain. The ribosome reads the mRNA codons and matchesthem with the corresponding transfer RNA (tRNA) anticodons that carry the amino acids. The ribosome then forms a peptide bond between the amino acids and releases the tRNA. This process continues until the ribosome reaches a stop codon on the mRNA and terminates the protein synthesis.

Answer:

A ribosome is a intercellular structure made of RNA and protein

Explanation:

Write a description or a reason why you are doing this activities of conserving our natural resources.

1. Using a glass when brushing teeth -
2. Hanging clothes -
3. Walking -
4. Feeding the stray animals -
5. Using back page of paper -
6. Using fan -
7. Watering the plants -
8. Sweeping -

Answers

Conserving our natural resources is crucial for the long-term sustainability of our planet and the well-being of future generations. Engaging in activities that promote conservation helps minimize our ecological footprint and protect the delicate balance of the Earth's ecosystems. Let's explore the reasons behind each of the activities you mentioned:

1. Using a glass when brushing teeth: By using a glass instead of leaving the tap running while brushing our teeth, we can conserve water. Freshwater is a finite resource, and reducing unnecessary water usage is essential for preserving our water supplies and ensuring their availability for both humans and the natural environment.

2. Hanging clothes: Opting to hang clothes to dry instead of using a dryer not only saves energy but also reduces greenhouse gas emissions. Clothes dryers consume a significant amount of electricity, and by utilizing natural methods like hanging clothes, we can contribute to reducing our energy consumption and lowering our carbon footprint.

3. Walking: Walking instead of using vehicles for short-distance travel offers multiple benefits. Firstly, it helps reduce air pollution by decreasing the emission of harmful gases from vehicles. Secondly, walking promotes personal health and well-being, as it is a form of physical exercise. Lastly, choosing to walk reduces traffic congestion and saves fuel.

4. Feeding stray animals: Feeding stray animals is an act of compassion and kindness. By providing food for stray animals, we help prevent their starvation and promote their overall welfare. It also reduces their need to hunt for food in natural habitats, preserving the delicate balance of local ecosystems.

5. Using the back page of paper: Utilizing both sides of a piece of paper helps reduce paper waste and conserves valuable forest resources. Paper production involves cutting down trees, and by maximizing the use of each sheet, we minimize the number of trees required to produce paper products.

6. Using a fan: Using a fan instead of an air conditioner helps reduce energy consumption and lowers greenhouse gas emissions. Air conditioners consume a significant amount of electricity, and by using fans to circulate air and provide cooling, we can contribute to conserving energy resources and mitigating the impact of climate change.

7. Watering the plants: Watering plants is essential for their growth and well-being. By providing them with adequate water, we support their ability to photosynthesize, produce oxygen, and contribute to a healthy ecosystem. Additionally, practicing responsible watering techniques, such as using watering cans instead of hoses, helps conserve water resources.

8. Sweeping: Sweeping instead of using a leaf blower or a hose to clean outdoor spaces reduces energy and water consumption. Leaf blowers and hoses consume significant amounts of electricity and water, respectively. Sweeping not only saves resources but also minimizes noise pollution and prevents soil erosion caused by high-pressure water flow.

Engaging in these activities of conserving natural resources demonstrates our commitment to environmental stewardship and sustainable living. By making conscious choices in our daily lives, we can contribute to the preservation and protection of the Earth's ecosystems for the benefit of current and future generations.

MAKE ME BRAINIST

You can’t use a glass when you are brushing your teeth

write a song (or a poem) that talks about the importance of the endocrine system, the various glands that make it up, and the hormones that those glands produce. The song should include a chorus and at least two verses for a total of at least nine lines. The song should also help younger kids understand the function of the endocrine system.

Answers

Answer:B

Explanation: bc it is

I don’t know
Hi bro bro I don’t have any answer

Why is Christ's judgment perfect?

Answers

Answer: While our judgment of each other is often superficial, Christs judgment is eternally significant, he judges by heart not looks or matter of situation, but, God's judgement is the better and the best x

Explanation:

He forgives us and invites us into learning to live a new way. He teaches us how to live this way and gives his Spirit to give us the power and ability to change. God's judgment is good because when the Spirit convicts us of sin, the Spirit gives us the wherewithal to change. God's judgment leads to transformation.

Is potassium a mineral and an electrolyte?

Answers

Answer:

Electrolytes are minerals in body fluids. They include sodium, potassium, magnesium, and chloride.

Answer:

Electrolytes are minerals in body fluids. They include sodium, potassium, magnesium, and chloride.

Explanation:

Explain how cell division is linked to cell theory.

Answers

All living things are organism

Write a scientific explanation using CLAIM,EVIDENCE AND REASONING
explain how homologous,analogous and vestigial structures are evidence of evolution

Answers

Analogous structures are anatomical features that have similar functions but different underlying anatomical designs. These structures arise in different species due to convergent evolution, where unrelated organisms independently evolve similar traits to adapt to similar environmental conditions. A classic example is the wings of birds and insects. Birds have feathered wings, while insects have membranous wings, but both allow for flight. Despite their different anatomical structures, the wings of birds and insects serve the same purpose and are adapted to perform a similar function. Analogous structures provide evidence for evolution by demonstrating that different species can independently develop similar traits in response to comparable environmental pressures.

I neeed help with this

Which of the following statements is true?

(A) Mutation is the only way to vary the gene pool in a population that reproduces by sexual reproduction.

(B) Fewer harmful mutations are inherited by sexual reproduction than by asexual reproduction.

(C) Sexual reproduction is faster than asexual reproduction.

(D) Offspring from asexual reproduction have more genetic variety than offspring from sexual reproduction.

Answers

Answer:

D is true because young ones produced from asexual reproduction carry more genetic variety

how do you think bryce felt about losing to austin in you-tubers vs tik-tokers? choose the best answer.

a. pathetic

b. determined

c. embarrassed

d. proud

Answers

he had to be embarrassed

Answer:embarrassed

Explanation:

Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human

Answers

an earthworm is not a chordate.

an earthworm,

hope this helped.

Other Questions

* 1 point Antidiuretic hormone (ADH) has two primary functions: retain water in the body and constrict blood vessels. During emergency situations, ADH is released in order to counteract blood loss. Which of the following best describes the mode of action for ADH during this event? 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On August 1, 2020, Indigo Corporation purchased a new machine for its assembly process at a cost of $147,600. The company estimated that the machine would have a trade-in value of $14,400 at the end of its useful life. Its useful life was estimated to be six years and its working hours were estimated to be 15,000 hours. Indigo's year end is December 31 . Using appropriate polarization diagrams, determine the effect of the following parameters on the corrosion potential and corrosion rate of a metal M corroding to dissolved M in an acid solution under activation control with other parameters constant: (a) Increasing ip of the anodic reaction. (b) Increasing io of the cathodic reaction (c) Increasing the concentration of dissolved H (d) Increasing the Tafel constant of the anodic reaction. 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