The earth is sometimes described as a giant magnet. True or false?

Answers

Answer 1
True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."

Related Questions

How are genetically engineered bacteria used in medicine?

They destroy viruses in the body.
They are used to make memory B cells.
They make products to treat diseases.
They are the only way to make vaccines.

Answers

Genetically engineered bacteria are important in medicine as they make products to treat diseases.

What are genetically engineered organisms?

Genetically engineered organisms are organisms whose genes have been engineered from the original form to new forms which are beneficial to man.

Genetically engineered organisms are produced by the process of genetic engineering

Genetically engineered bacteria are used in:

food industry medicine agriculture

In medicine, genetically engineered bacteria are used products to treat diseases such as insulin.

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Going long does carbon dioxide last

Answers

Answer:

carbondioxide last in about 300 to a 1000 years in the atmosphere

!20POINTS!
Analyze the graph and identify some factors that may contribute to the rotifer population leveling off in the absence of water fleas. Explain your answer in 1–2 sentences.

Answers

Answer:

(Leveling off = it stays the same even though it had a increasing period) When looking at the end of the graph you can see that it came back to what it was, which means the rotifers are not increasing anymore. That's because of the carrying capacity (a species' average population size in a particular habitat), and the carrying capacity in this situation is the flask. Therefore the flask has limited space.

how blood clotting occurs​

Answers

Answer:

Your answer would be:
A blood clot occurs when there is damage to a blood vessel.


Explanation:
Have a great rest of your day
#TheWizzer

Answer:

Proteins in your blood called clotting factors signal each other to cause a rapid chain reaction. It ends with a dissolved substance in your blood turning into long strands of fibrin. These get tangled up with the platelets in the plug to create a net that traps even more platelets and cells.

Explanation:

hope this helps

Why does DNA need to replicate in our cells

Answers

Here is a Answer to your question:

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

I am sorry if this was not helpful

Hope this was helpful

Hello There!!

DNA also known as Deoxyribonucleic Acid is a double stranded macromolecule. The two strands of DNA are complementary to each other. For replication, the DNA double helix opens at one end, making the two strands free to which new strands begin to form and the process continues in a sequence for the whole length of the DNA.

Hope this helps

This is digital data obtained from sensors carried in satellites. It includes collecting data in the
visible and non-visible portions of the electromagnetic spectrum.
Example: Landsat image
Term: Type term here

Answers

Satellite Imagery is a type of digital data obtained from sensors carried in artificially designed satellites.

What is Satellite Imagery?

Satellite Imagery refers to the images that are obtained by using artificial satellites made by humans.

Satellite Imagery includes collecting data on both the visible and non-visible portions of the electromagnetic spectrum.

Satellite Imagery is fundamental for many applications in different disciplines such as, for example, agriculture.

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which of the following best explains why top predators can have up to 60 times as much of persistent organic pollutants as their prey and up to 600 times as much of the pollutants as producers ?

Answers

This is because persistent organic pollutants accumulate in the body fat of living organisms and increase in concentration as they move up the food chain.

What is Persistent organic pollutants?

These are organic compounds that are stable and do not degrade easily. They are usually harmful and accumulate in the body fat of organisms.

They are also known to  increase in concentration as they move up the food chain which is why predators have more of them.

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PLEASE HELP!!!!
Plant Structure and Function Lab
Title: Plant Structure and Function Lab

Objectives:

After doing this lab, you should be able to:
• Identify the correct plant tissues from the corresponding slides.
• Identify the different structures of a flower.
• Describe the functions of each flower structure.
• Describe the functions of each plant tissue.
• Answer the Analysis and Conclusion questions using multiple sentences.

Materials:
• Flower
• Scissors
• Tape
• Tweezers
• Lab Report

Procedure:

Plant Tissues – Part 1
Review each image in your lab activity slide show. Identify the correct tissue or organ below based on each individual slide. Several of these choices may be use multiple times.

• phloem
• stoma
• xylem
• guard cells
• dermal
• ground
• vascular


Slide 1_____Slide 2_____Slide 3______Slide 4_____Slide 5
a. xylem___a. guard cells_a. vascular__a. vascular___a. vascular
b. phloem__b. stoma____b. dermal___b. ground____b. ground
____________________c. ground___c. dermal_____c. dermal
____________________d. dermal_______________________.

Flower Dissection - Part 2
• Pick a flower from your yard, a public location, or somewhere in your neighborhood.
• Start by removing the sepals of the flower with a tweezer. If you do not have a tweezer, a small pair of scissors will also work. It may be easiest to do this if you hold the flower with your finger from below the pedicel (small stalk just underneath the flower) and begin to remove the sepals with a pair of tweezers.
• Using tweezers, place the sepals on the labelled printable worksheet, and tape them in place.
• Repeat the same procedure for the petals and pistil.
• Remove all but one of the stamens and tape them onto the worksheet.
• On your printable worksheet, you should have sepals, petals, stamens and one pistil.
• Take a picture of your worksheet with the flower pieces placed correctly, and save it on your computer. You will attach and submit this with your assessment questions.

Data: Flower Dissection

Name of Flower Component Piece of Flower from Lab Function

Sepal

Petals

Stamen

Pistil


Analysis and Conclusion - Part 3

Plant Tissues:
1. What are three characteristics that all species belonging to the plant kingdom have in common?

2. How will the numbers of stomata differ in tropical plants and desert plants? How does this help protect the health of a plant?

3. If a plant's xylem and phloem become damaged, what type of damage will result within the plant? Describe the different roles on the xylem and phloem in your answer.

4. Why do we compare the dermal tissue of plants to human skin? Explain your answer.

5. Would a plant be able to survive if the ground tissue was damaged? Explain your answer.


Flowering Reproduction:
1. Describe how flowering plants reproduce.

2. How do flowers help other organisms in our environment?

3. Which parts of a plant are responsible for reproduction? Describe the role that each of them will play.

4. Describe what occurs during the process of seed development.

5. Based on your knowledge of flowers, why do you think most flowers are bright in color?

Answers

The plant is made up of root and shoot structures that contain parts that enable the plant to grow and manufacture its food.

The structure and function of plants

The structure of plants is made up of tissues such as:

phloemstomaxylemguard cellsdermalground andvascular.

The three characteristics that all species being to the plant kingdom have in common are:

They are non-motile,

They make their food hence are called autographs; and

Their cell walls are made sturdy by a material called cellulose

The tropical plants have more stomata than the desert plants. This helps the desert plants to reduce water loss.

Some defects occur when there is damage to the vascular tissues such as the xylem( plant will not be able to transport water from the soil through roots to leaves) and phloem (nutrients produced during photosynthesis will not be able to reach every part of the plant body).

The dermal tissue of plants and the human skin performs protective roles to the underlying tissue organs.

A plant won't be able to survive because it won't absorb water and nutrients from the soil and transport it upwards to all the parts of the plant.

Flowering reproduction in plants takes place through the following steps:

Pollen is carried by insects or blown by the wind from one flower to another. This process is called pollination. Pollen reaches the new flower and travels to the ovary where it fertilises egg cells (ovules) to make seeds. This is fertilisation.

Flowers benefit other organisms in our environment by creating more carbon dioxide-absorbing and oxygen-radiating plants.

The flowers contain male reproductive organs called stamens and female reproductive organs called pistils.

The process of seed development begins with double fertilization and involves the fusion of the egg and sperm nuclei into a zygote.

Most flowers are bright in color because they are like advertisement signs for pollinators.

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How do scientists test theories

Answers

Answer:

using data, preferably multiple types of data from multiple sources.

Explanation:

hope this helps

Scientist tests theories by performing tests to see if the theory works, they also perform data, and along other things.

Can anyone tell me the answer for these

Answers

Based on the chart of temperature and the amount of rainfall, it is observed that rainfall is highest in the tropical rainforest while the highest and lowest temperatures are found in desert and tundra respectively.

What are biomes?

Biomes are large area of land whose characteristics are influenced by various abiotic factors such as temperature, amounts of precipitation, pH, light as well as biotic factors such as plants and animals as well as microorganisms.

The major biomes of the world include:

tropical rainforest coniferous forest temperate grassland deserts tundradeciduous forests

From the chart, the amount of rainfall is highest in the tropical rainforest while the highest and lowest temperatures are found in desert and tundra respectively.

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During meiosis, crossing-over may occur. What is usually the result of crossing-over?
A- the development of identical offspring
B- variation within the species
C- overproduction of gametes
D- fertilization and development

Answers

C



Overproduction of gametes

Which material would most likely contribute to the formation of humus?

A.
basalt

B.
granite

C.
grass

D.
salt

Answers

Answer:

Encyclopedic entry. Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up.

What is the process where one strain of bacteria is changed by another strain? A. Transformation B. Evolution C. Morphism D. Adaptation​

Answers

Answer:

A. Transformation

Explanation:

In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.

Which of the following statements about the relationship between science and technology is NOT true? a. Science and technology are the same thing. b. Science is the study of the natural world to understand how it functions, while technology changes the natural world to meet human needs or solves problems. c. The work of scientists often makes new technologies possible. d. The development of new technologies often contributes to science. Please select the best answer from the choices provided A B C D

Answers

It would be A. Science and technology are the same thing.

The statement that is NOT true about the relationship between science and technology is A. Science and technology are the same things.

What are science and technology?

Science refers to the systematic study of the structure and behavior of the physical and natural world.  Science can also refer to the organized body of knowledge on a subject.

Science achieves this systematic study through:

ObservationsExperimentsEvidenceExplanations.

The above scientific tools are collectively known as scientific inquiry.

On the other hand, technology is the application of gathered scientific knowledge to solve human problems or meet needs through the manipulation of the human environment.

However, science and technology continuously interact to develop each other.

Thus, it is NOT true that science and technology are the same things.

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Saliva flows out of the salivary glands into your mouth is it diffusion osmosis or neither

Answers

Secretion from the salivary glands is driven by osmosis following the establishment of osmotic gradients between the lumen, the cell and the interstitium by active ion transport.


The major pathway into saliva for most steroid hormones and other small, neutral molecules is by passive diffusion. The salivary glands are surrounded by dense beds of capillaries, and many blood components pass easily through the capillary walls, bathing the saliva glands.

Which of the following best supports the claim that organisms of different domains share a common ancestor?
(A) Photosynthesis occurs in chloroplasts, and the citric acid cycle occurs in mitochondria.
(B) Glycolysis occurs in both prokaryotic cells and eukaryotic cells.
(C) Introns are present in eukaryotic DNA but not in prokaryotic DNA.
(D) Errors in DNA synthesis provide some of the genetic variation in a population.

Answers

b. glycolysis occurs in both prokaryotic cells and eukaryotic cells.

how do forensic scientists recover writing from a burned document?

Answers

The documents should be picked with the utmost care by placing hard paper underneath the charred documents. A stiff sheet of paper is stuffed underneath the charred documents in the fireplace and then gently pulled over to keep it on stiff cardboard.

Fossil fuels store energy that is released when they are burned. What is the origin of the energy contained in fossil
fuels?
O the wind
O water
Oores
the Sun

Answers

Answer:

ores

Explanation:

Suppose an individual has an incorrect number of chromosomes. Specifically, what must have happen? (Do NOT say non-disjunction….be more specific)

Answers

Explanation:

the person could have 22 pairs of chromosomes and one triplet of chromosomes resulting in them having 47 chromosomes altogether. This causes people to have down's syndrome

DNA STRUCTURE
Pls help me fill in the blank

Answers

Answer:

Overall Shape: Double Helix

Groups of Molecules Called: nucleotides

4 Nitrogenous Bases: Adenine-Thymine / Guanine-cytosine

Chargaff's rules: A=T, C=G

Backbone: Phosphate and deoxyribose sugar

Bonds: Hydrogen Bonds between base pairs

Can somebody help please

Answers

Explanation:

what role did the south africa women play against the violation of human rights the 1950s to 1960s

Current market value of the property.

describe five different breath sounds that may be heard when you check a client's respiration​

Answers

1. Rales. Small clicking, bubbling, or rattling sounds in the lungs. They are heard when a person breathes in (inhales). They are believed to occur when air opens closed air spaces. Rales can be further described as moist, dry, fine, or coarse.

2. Rhonchi. Sounds that resemble snoring. They occur when air is blocked or air flow becomes rough through the large airways.

3. Stridor. Wheeze-like sound heard when a person breathes. Usually it is due to a blockage of airflow in the windpipe (trachea) or in the back of the throat.

4. Wheezing. High-pitched sounds produced by narrowed airways. Wheezing and other abnormal sounds can sometimes be heard without a stethoscope.

5. crackles (a high-pitched breath sound)

Find a picture or video regarding optical illusions and post a link. Describe what is happening in the eye or brain that creates that illusion!

Answers

Optical illusion occurs when our brain and eyes miscommunication with each other.

Why Optical illusions occur?

Optical illusions happen when our brain and eyes speak to each other in simple language but the interpretation gets mixed-up. For example, our eyes told the brain that something is moving but that's not what the eyes meant to say to the brain which leads to the creation of illusion.

So we can conclude that Optical illusion occurs when our brain and eyes miscommunication with each other.

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Why is an ecosystem with higher levels of biodiversity more stable than an ecosystem with lower levels of biodiversity?
O because species are more adaptable
O because they are better able to withstand stresses like disease or climate change
because changes affect every species the same way
because species are constantly replacing one another

Answers

An ecosystem with higher levels of biodiversity is more stable than another with lower levels because they are better able to withstand stresses like disease or climate change.

What is biodiversity?

The term biodiversity refers to all of the variations (both genetic and phenotypic) in a given population.

Biodiversity is a fundamental subject to maintaining the equilibrium (homeostasis) of the whole ecosystem.

Higher biodiversity allows populations to face environmental changes such as diseases or climate change.

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how both genetic and environmental factors can affect paint color variation in california rabbits

Answers

Answer:

Coat color in rabbits is inherited as a series of multiple alleles.

Explanation:

This means that there can be more than just 2 alleles for a single gene. In the case of coat color in rabbits, there are four alleles, and each one is expressed with a different phenotype.

The genetic factors that can affect paint color variation in California rabbits are based on the several different genes that are inherited from their parents. It includes color base, color density, pattern, an extension of dark pigment, spotting, silvering, etc.

What are the genes that are responsible for color variations?

The genes that are responsible for color variations are as follows:

Gene A controls the pattern of the coat.Gene B controls the base of coat color.Gene D controls the density of the coat color.

Apart from these direct genes, several other genes are also responsible for causing variations in paint color in Rabit. The effect of environmental factors remains the same for every species regardless of competition, and other limited resources. These environmental factors govern the alteration gradually over a long period of time to stimulate some observable responses in the organisms.

Therefore, the genetic and environmental factors that can affect paint color variation in California rabbits are well described above.

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Residents of an older building have children with a higher incidence of developmental delays. Which of the following is a possible cause of the developmental issues?

Old lead pipes are still used in the building.
Asbestos was not removed from the building.
The heating system is releasing carbon monoxide.
Pesticides were used in the building's landscaping.

Answers

Answer:

A

Explanation:

I took the test :)

Primitive lead pipes still in use in the construction may be the root of the building's developmental issues. So, the correct option is A.

What are Lead pipes?

Long lead pipes are recognised as the main source of lead in drinking water, lead service lines are the pipes that transport water from the underground water main to homes.

Remember that lead has been used in water pipes for thousands of years. Ancient civilizations picked lead for piping because it could withstand tiny leaks and was pliable enough to form into efficient water-delivery designs.

The development problems with the building may be caused by the outdated lead pipes that are still being used in the construction.

Thus, the correct option is A.

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how can you detect hardness of water collected from different sources​

Answers

We can detect the hardness of water taken from different sources by adding soap to it. If the soap does not form micelle in the water then it will be hard water. In simple language if the soap doesnot disslove in water then it will be soft water.

what is anemia, why do people with sickle cell anemia have anemia?

Answers

Answer:

que es la anemia

Insuficiencia de glóbulos rojos saludables debido a la falta de hierro en el cuerpo.

por que las personas con anemia de celulas falciformes tienen anemia

La anemia de células falciformes es causada por una mutación en el gen que le dice a tu cuerpo que produzca el compuesto rico en hierro que hace que la sangre sea roja y permite que los glóbulos rojos transporten el oxígeno de los pulmones a todo el cuerpo

Explanation:

Answer:

sickle cells typically die in 10 to 20 days,l leaving a shortage of red blood cells

Explanation:

the lack of red blood cells can make a animal have anemia

Why are invasive species considered a threat to native wildlife?

Answers

Answer:

they can consume all the native prey and have few predators.

Explanation:

What happens to sunlight photons?

Answers

Answer:

All of the infrared photons are absorbed and re-radiated by the glass pane.

Sunlight photons interact with the Earth's atmosphere, scattering, absorbing, and transmitting, influencing weather, photosynthesis, and regulating the planet's temperature.

When sunlight photons reach the Earth's atmosphere, several interactions occur. First, a fraction of photons is absorbed by atmospheric gases, which excite their molecules. Some photons are scattered in various directions due to Rayleigh or Mie scattering, making the sky appear blue and contributing to diffuse light. Next, photons that pass through the atmosphere may interact with clouds, dust, and aerosols, leading to further scattering and absorption.

Eventually, the remaining photons reach the Earth's surface and may be absorbed, reflected, or transmitted. The absorbed photons can warm the Earth, driving weather patterns and supporting photosynthesis in plants. Reflecting and transmitting photons play a crucial role in regulating Earth's temperature and energy balance.

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The complete question is:

What happens to sunlight photons when they reach the Earth's atmosphere?

Other Questions
In a short response, determine which line of "If" Atticus would most likely impart on Jem or Scout. Persuade the reader by explaining why the line you chose reflects the best advice. Provide at least two relevant details from the texts to support this claim.Good response gets 20 dollar gift card. Which statement describes characteristics of a convex lens? A convex lens diverges light and curves inward. A convex lens diverges light and curves outward. A convex lens converges light and curves inward. A convex lens converges light and curves outward. Simplify (32-2) + (52+5-1) Robert had some friends at his house after school. His mom cut up 2 pies for them to eat. If she cut each pie into fourths, how many pieces will there be? Choose the model that represents the answer.1/48/82/84/4NO LINKS!!!!!) If the freezing point depression for a solution is 2. 5c and kf = 4. 5c/m, what is the molality of the solution? What is the climate and vegetation like in the temperate woodland? Question 9 (Fill-In-The-Blank Worth 12 points)(HC)Memories of a MemoryHave you ever witnessed something amazing, shocking or surprising and found when describing the event that your story seems to change the more you tell it? Have you ever experienced a time when you couldn't really describe something you saw in a way that others could understand? If so, you may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trials. New insights into human memory suggest human memories are really a mixture of many non-factual things.First, memory is vague. Imagine your room at home or a classroom you see every day. Most likely, you could describe the room very generally. You could name the color of the walls, the floors, the decorations. But the image you describe will never be as specific or detailed as if you were looking at the actual room. Memory tends to save a blurry image of what we have seen rather than specific details. So when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. There are lots of different kinds of "tall."Second, memory uses general knowledge to fill in gaps. Our brains reconstruct events and scenes when we remember something. To do this, our brains use other memories and other stories when there are gaps. For example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. In effect, your brain is combining memories to help you tell the story.Third, your memory changes over time. It also changes the more you retell the story. Documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. Research has also shown that the more a witness's account is told, the less accurate it is. You may have noticed this yourself. The next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. You may also notice that you drop certain details from previous tellings of the story.With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. Did you really break your mother's favorite vase when you were three? Was that really your father throwing rocks into the river with you when you were seven? The human brain may be quite remarkable indeed. When it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture.Part A and Part B below contain one fill-in-the-blank to be used for all three question responses. Your complete response must be in the format A, B, C including the letter choice, commas, and a space after the commas.Part A:Which of the following best explains what the title "Memories of a Memory" means"?Fill in blank 1 using A, B, or C.Our memories are not as real or factual as we think they are.Our memories from childhood are not necessarily correct.Some people have memories that are not based in fact.Part BSelect one quotation from the text that supports your answer to Part A. Add your selection to blank 1 using F, G, or H.Our brains reconstruct events and scenes when we remember something.Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk.Research has also shown that the more a witness's account is told, the less accurate it isSelect one quotation from the text that supports your answer to Part A. 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