Recently, it was discovered that rare earth elements can be used to repel what type of animal? How do they do this?

Answers

Answer 1
The rare earth element is samarium. It can create an electric current when submerged in salt water. Sharks that are magnetically sensitive don’t like samarium.

Related Questions

What are the qualities of greenhouse gas? Select the two correct answers.

A. transparent to infrared radiation
B. three or more atoms in a molecule
C. produced by human activity
D. absorbs and re-emits infrared radiation
E. composed of single atoms, not molecules

Answers

Answer:

produced by human activity

absorbs and re-emits infrared radiation

Explanation:

produced by human activity

absorbs and re-emits infrared radiation

Humans burn fossil fuels and wood, releasing carbon dioxide into the atmosphere. This carbon dioxide is then absorbed by trees for photosynthesis. These processes are contributory to which chemical cycle?

Answers

Carbon cycle. Because everything that is happening in the situation of this question is related to the carbon cycle. Fossil is being burnt which releasing carbon dioxide and the plant is taking it in to release oxygen!
It is a circle of life.

Carbon cycle controls the amount of carbon dioxide in the atmosphere. These processes are contributory to the carbon cycle in the       environment.

What is a carbon cycle ?

The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is preserved in rocks and sediments; the remainder is preserved in the ocean, the atmosphere, and living things.

Life on Earth is reliant on the carbon cycle. The quantity of carbon that is naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs because nature tends to maintain carbon levels in balance. This carbon balance must be preserved for the earth to continue to support life.

Therefore, the carbon cycle is an important chemical cycle.

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What is the function of erythrocytes?
What is the term for all the components of the blood?
What is blood?

Answers

Answer:

1. The main physiological role of red blood cells (RBCs), or erythrocytes is to transport of gases (O2, CO2) from the lung to the tissues and to maintain systemic acid/base equilibria. In addition, RBCs are well equipped with antioxidant systems, which essentially contribute to their function and integrity.

2. In humans, it includes plasma (the liquid portion), blood cells (which come in both red and white varieties), and cell fragments called platelets. Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.

3.Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

hope it will help u

PLS HELP!!
In a normal distribution, the number of organisms exhibiting a phenotype variant near the lowest value is(1 point)
-greater than the number exhibiting a variant near the highest value.
-greater than the number exhibiting a variant near the middle value.
-less than the number exhibiting a variant near the middle value.
-less than the number exhibiting a variant near the highest value.


Kamar is looking for his birth mother. Kamar knows that his blood type is AB and his father’s blood type is heterozygous A. What can Kamar assume about his mother’s blood type?(1 point)
-Kamar’s mother must be either AB or B because blood types AB is considered codominant.
-Kamar’s mother must be AB because blood type AB is inherited from one parent.
-Kamar’s mother must be O because the recessive allele allows for Kamar to get type A from his father.
-Kamar’s mother must be either A or O because blood type AB is considered incomplete dominant.


A statistician collects height data in inches for a school district. Which sample is most likely to produce a normal distribution?(1 point)
-Grade 10-12
Height Range 55 - 60 60 - 65 65 - 70 70 - 75
Frequency 4 9 8 4
-Grades 1-3
Height Range 30 - 35 35 - 40 40 - 45 45 - 50
Frequency 4 1 10 10
-Grades 7-9
Height Range 50 - 55 55 - 60 60 - 65 65 - 70
Frequency 11 5 6 3
-Grade 4-6
Height Range 45 - 50 50 - 55 55 - 60 60 - 65
Frequency 12 8 4 1


The different variants of a trait available to a gene are called(1 point)
-alleles.
-genotypes.
-polygenic traits.
-phenotypes.


A wolf populations’ undercoat thickness follows a normal distribution. Suppose climate change causes the winters to grow colder. Over many generations, the distribution of undercoat thickness in this population will likely(1 point)
-shift toward a thinner coat.
-shift toward a thicker coat.
-remain the same.
-no longer be normal.

HELPPPP PLEASE....
:)

Answers

1 is a: less than...middle value

2 is c: ab or b

3 is d: grade 10-12

4 is a: alleles

5 is a: ..... thicker coat

Explanation: just took this, these are the correct answers for MY quick check. could very well be different for yours. hope this helps though :)

The number of organisms exhibiting a phenotype variant near the lowest value is ; ( C ) Less than the number exhibiting a variant near the middle value.Kamara can assume that ; ( A ) Kamara mother must be either AB or B because blood types AB is considered codominant.The sample that is most likely to produce a normal distribution is ; ( A ) Grade 10-12,  Height Range 55 - 60 60 - 65 65 - 70 70 - 75 , Frequency 4 9 8 4.Various variants of a trait available to a gene are called ( A ) ; Alleles .The undercoat thickness in this population will likely ( B ); shift toward a thicker coat.

The wolves undercoat will grow towards been thicker in order to protect the wolves from extreme cold conditions posed by the winter and  this phenomena is called adaptation.

Blood types of offspring's are determined by the blood groups of both parents therefore if Kamara has a blood type AB his mother will mostly likely have either AB or B blood type.

Alleles are the different variants of a gene in living organisms but they are located at the same position on the chromosome.

Hence we can conclude that answers to the questions are as listed above.

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Please help me with this question

Answers

I’m pretty sure the answer is the second and the last one
I think second one def not the first or third for sure


How can humans best limit the negative impact that farming has on soil quality?

Answers

Answer:

rasenshuriken jk f these resources, soil and water have provided humans with the ability to ... to fertile soils; 3) the impacts of intensive agriculture on soil degradation; and 4) the ... in a severe limitation of crop yield — an example of the principle of limiting factors. ... to generate new soil, it is imperative that agricultural practices utilize best ...

Explanation:

What are the 3 most important parts of a seed

Answers

Embryo, endosperm, and seed coat

Answer:

the 3 primary part of a seed are the embryo, endosperm, and seed coat.

expaination:The embryo is the young multicellular organism before it emerges from the seed.

Bombardier beetles release a burst of hot chemical spray with a popping sound. The chemical is sprayed from a structure present under the belly of the beetles. Which is the likely advantage of such a behavior?

Answers

Answer:It allows beetles to escape from predators.

Explanation:

help pls!

“How might an energy requirement affect an individual who has a cancerous tumour?”

Answers

Answer:

Cellular respiration describes the series of steps that cells use to break down sugar and other  chemicals to get the energy we need to function.  Energy is stored in the bonds of glucose (like a stretched rubber band), and when glucose is broken down, much of that energy is released.  Some of it is captured in a form that can be used to do work in cells - a molecule called adenosine triphosphate or ATP. The energy that is not captured in ATP is usually given off as heat (one of the things that helps us maintain our normal body temperature).

A human cell that has 46 chromosomes would have __ daughter cells that each have __ chromosomes after mitosis.

Answers

Answer:

2 daughter cells, 46 chromosomes

Explanation:

Mitosis is reproduction of somatic cells, or body cells. It's end product will always be 2 daughter cells, each identical to one another, therefore meaning, it will also have the same number of chromosomes!

Answer: one daughter cells and each have 23

Explanation: mitosis is the first then meiosis

hello help please i’ll mark brainliest!!! please help

Answers

Answer:

Answer: The hottest time of the day is around 3 p.m. Heat continues building up after noon, when the sun is highest in the sky, as long as more heat is arriving at the earth than leaving. By 3 p.m. or so, the sun is low enough in the sky for outgoing heat to be greater than incoming.

Explanation:

Answer:

The third one

Explanation:

Please Answer These Questions!

1. What is a stimulus?
2. Why does the body respond to stimuli?
3. What are some different types of stimuli?
4. What are sensory organs and what type of stimuli do these receptors respond to?
5. What is an explanation of how the information from stimuli is communicated to the brain?
6. What is a description of the two things that can happen when the brain processes the information from stimuli?

Answers

Hello, 3Coli Here!

Here are your answers:

1. What is a stimulus?

Stimulus is a natural body reaction caused by changes in the environment around or inside the organism. This is a response from the brain.

2. Why does the body respond to stimuli?

The body responds to stimuli, because it needs to protect itself.

3. What are some different types of stimuli?

The two main types of stimuli are external stimuli and internal stimuli. External stimuli are reactions triggered by changes that occur outside of the body, while internal stimuli are reactions triggered by changes inside of the body.

4. What are sensory organs and what type of stimuli do these receptors respond to?

The most commonly used sensory organs include Eyes, Ears, Tongue, Nose, and Skin. Eyes respond to light and motion, because they are used to see. Ears respond to sound, because they hear. The tongue is used to taste, so it senses flavors. The nose is used to smell, so it responds to scents. Finally, the skin is used to feel, so it responds to whatever it feels.  

5. What is an explanation of how the information from stimuli is communicated to the brain?

Neuron receptors convert internal and external environments into electrical signals, and then is sent to the brain through nerves.  

6. What is a description of the two things that can happen when the brain processes the information from stimuli?

After the brain receives the signal, it will provide a response. One type of response is that the body will physically react to the change. The second type of response is to avoid the change.

Hopefully, this helps! :D

Ask your question below!

Study Guide
Relationships in Ecosystems/ Human Impact
1. Which of the following is NOT correct?
A population is all the organisms of the same species that live in the same area
b. A community is all the populations of different species that live together in the
same area
A population is all the populations of different species that live together in the
seme eres
d. An ecosystem is all of the living and nonliving things in an area
C.

Answers

Huh!??????? What are you saying

Which of the following describes erosion caused by glaciers?(2 points)
It forms big ice chunks.
It changes the temperature.
It happens quickly.
It takes a long time.

Answers

Answer:

NUMBER TWO DONE BOIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

Explanation:

After cytokinesis, how many cells have been formed from the parent cell?

Answers

Answer:

During cytokinesis, a single cell divides into two daughter cells.

Explanation:

Answer: Mitosis = 2 genetically identical daughter cells,

Meiosis = 4 genetically different daughter cells

How is the phytoplankton affected by the changes we see in the global carbon cycle, write the claim, evidence, reasoning.

Answers

These tiny organisms consume carbon dioxide from the atmosphere and move it to marine sediments in the deep ocean in a process called "the biological pump". Phytoplankton play a big role in regulating today’s carbon cycles.

What color would the bby and water turn with plants in the dark

Answers

Answer:

The water is drawn in the xylem through capillary action and is dispersed through out the entire plant from stem to tips of the leaves and petals. When the water is colored, the color from the water can stain the plant, especially if it is a light colored plant, such as the white petals on our flowers.

Explanation:

_____ is a force caused by air that slows objects down

Answers

Answer:

Drag

Explanation:

Drag is a force caused by air that slows objects down

Friction is a major force that slows the object down, air resistance is a type of frictional force.

What is air resistance?

Air resistance is a kind of frictional force that slows down an object from moving in a particular direction.

During the movement an object has a particular speed for movement, speed depends on how friction works, more friction slows the speed of an object a low friction allows the object to at a particular speed.

Air is a mixture of gases and particles in the atmosphere, these particles create a force during the movement of an object in the air, and these forces decide the actual speed of object movement.

Therefore air resistance is a force that slows the object.

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Bacteria that generate reactions such as swelling of tissues, and fever in humans are an example of microorganisms that -

A.form mutualistic relationships with cells of other organisms.

B.break down the organic matter of dead plants and animals.

C.are pathogenic and are able to cause disease by killing host cells.

D.live in close association and provide resources for all plants and animals.

Answers

Answer:

B. Break down the organic matter of dead plants and animal

Why is DNA related to protein

Answers

DNA stores the instructions (genetic information) used to build proteins.

guys help with this plzz
brainlest even if u try ur best :



Vasoconstriction and Vasodilation

__________ carries heat from the core around the body.

As blood flows through the ______________ close to the surface of the ______, heat is lost to the body’s surroundings.

The __________________ which supply the capillaries in the skin have smooth _________ in their walls. This means that the arterioles can dilate or constrict to ____________ the flow of blood into the capillaries.

Answers

Explanation:

is it only vasoconstriction and vasodilation as the answers or are there more?

Animal that live in water is also called as _____?​

Answers

Answer:

aquatic animals......hope it will help you

Enter the correct 4 digit code (no spaces)

Answers

The hidden code in the puzzle is 4321.

How to solve the riddle?

The riddle in the picture has the objective of hiding the order of the numbers so that the reader finds the order. In this puzzle the reader must follow the line of each letter and find the order of the numbers to find the code.

Based on the above, it can be inferred that:

The letter A line leads to the number 4.The letter B line leads to the number 3.The letter C line leads to the number 2.The letter D line leads to the number 1.

So the complete code would be:

4321

Learn more about riddles in: https://brainly.com/question/478260

Answer:

It's actually 3214

Explanation:

The process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully
expounded by Charles Darwin and is now believed to be the main process that brings about evolution

True
False

Answers

True

The process is called natural selection and was first explored by Charles Darwin in the 19th century.

NATURAL SELECTION is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. This concept was first developed by Darwin (both statements are TRUE).

Darwin referred to evolution as the process of 'descent with modification'.

The main mechanism by which organisms evolve to adapt to their environments is natural selection.

The theory of evolution by natural selection was developed by Darwin and it is now widely accepted as the main cause of evolution.

According to Darwin, species change (evolve) over time, thereby giving rise to new species that share a common ancestor.

In conclusion, NATURAL SELECTION is the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of evolution by natural selection was first developed by Darwin (both statements are TRUE).

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SCIENCE ASSAP
what does primary succession mean

Answers

Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life

Which of the following plant propagation methods requires sterile conditions?

• hybridization
• clone by layering
• root division
• tissue culture

Answers

the answer is tissue culture

what is
Meiosis and Mitosis

Answers

Answer:

mitosis is part of a cell that splits in 2 to make two new nuclei. Meiosis is the special cell division of sexual reproduction, like sperm and egg cells

Explanation:

yep what the other person said

I will mark branlist


What is the best description of the chromosomes by the end of metaphase of mitosis?


The chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei.


The chromosome pairs collect in a line across the middle of the cell.


The chromosomes separate at the centromere and begin to move apart.


The chromosomes have coiled and become more compact.

Answers

Answer:

The chromosome pairs collect in a line across the middle of the cell.

Explaination: i have  a whole slide show i had to make for science i looked at that

A nucleotide is made of three parts. They are: __?__, __?__, and __?__.

Answers

Answer:

Sugar, phosphate group, and a nitrogenous base.

Explanation:

Image does not belong to me. All image credits goes to its rightful owners.

Deoxyribose
Nitrogenous base
One or more Phosphate groups

Which of the following is evidence of Continental Drift?

Shape of the continents
Distribution of fossils
Distribution of geological features
All of these
None of these

Answers

Answer:

All of these

Answer:

All of these

Explanation:

If you put all of the continents together, they fit like a puzzle. If you look at mountains and match these when they are put together, mountains will be in similar places. The fossils found in Antarctica were fossils from warm climates. That could only be if all continents used to be one!

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