How much are ice levels decreasing in the Arctic?

Answers

Answer 1

According to scientific reports, the Arctic sea ice extent has been declining at an alarming rate over the past few decades.

The Arctic sea ice minimum extent in 2021 was 3.74 million square kilometers, which is the 12th lowest on record. The overall trend shows a significant decrease in ice levels, with a decline rate of approximately 13.1% per decade since 1979.

The loss of Arctic sea ice has far-reaching consequences, including rising sea levels, changes in ocean currents, and impacts on wildlife and their habitats. It also has significant implications for global climate change, as melting sea ice releases more greenhouse gases into the atmosphere.

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Related Questions

Need help with this

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Answer:

her arms are puffy , red and swollen

Explanation:

that is literally a sign :/

State whether each water pollutant listed below is primary or secondary and whether it is physical or chemical biological radiological or thermal

State whether each water pollutant listed below is primary or secondary and whether it is physical or

Answers

Among the frequent contributors of water contamination include sewage disposal, industrial chemical spills, agricultural runoff, etc.

What are the primary and secondary water pollutant?

A secondary pollutant is created when other pollutants (primary pollutants) react with the atmosphere, rather than being directly released as such.

The primary reasons of water pollution are microorganisms, parasites, insecticides, pharmaceuticals, plastics, fecal matter, radioactive matters, fertilizers, and pesticides.

Therefore, Pollutants, both primary and secondary. A primary pollutant is a substance that is released into the air directly from a source.

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amino acids are hooked together at the what to make proteins?​

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That is the Ribosome

Which of the following is most directly responsible for water's unique properties?

A It contains oxygen atoms.
B It contains hydrogen atoms.
C It is an ionic compound.
D It forms hydrogen bonds.
E It is nonpolar.​

Answers

Answer:Water molecules are polar, so they form a hydrogen bond(s). This gives water unique properties,  for example a relatively high boiling point, high specific heat, cohesion, adhesion and density.

Explanation:

The unique properties of water can be attributed to the fact that it forms hydrogen bonds.

HOW IS HYDROGEN BOND FORMED IN WATER:

Water is regarded as a special molecule because of its unique properties such as cohesion, adhesion etc.

This unique properties of water can be attributed to the hydrogen bonding molecules of water.

Water is made up of two hydrogen atoms and one oxygen atom. The hydrogen atoms of one water molecule forms an HYDROGEN BOND with the oxygen atom of another water molecule.

Hence, the unique properties of water can be attributed to the fact that it forms hydrogen bonds.

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Sucrose is the assistant of the genius alchemist called.

Answers

Answer:

The Answer of your question is Albedo

3. In pea plants, flowers can be purple (P) or white (p). In a field of peas, you count 18 plants with white flowers, and 142 plants with purple flowers. A. What is the value of p? B. What is the value of q? C. What is the frequency of heterozygous plants in the field? D. Check your work: p'+2pq+q? 1 Are you sure the numbers are correct?

Answers

A. To determine the value of p (and q), we can use the equation p + q = 1, where p represents the frequency of the recessive allele (white flowers) and q represents the frequency of the dominant allele (purple flowers). We are given that there are 18 plants with white flowers and 142 plants with purple flowers. This gives us a total of 160 plants.

We can set up two equations:
p + q = 1
p = 18/160

We can solve for q:
q = 1 - p
q = 1 - (18/160)
q = 142/160
q = 0.8875

So the value of p is 0.1125.

B. The value of q is 0.8875.

C. The frequency of heterozygous plants in the field can be determined using the equation 2pq, where p and q are as defined in part A.
2pq = 2(0.1125)(0.8875)
2pq = 0.1997
So the frequency of heterozygous plants in the field is 0.1997 or approximately 20%.

D. To check our work, we can use the equation p' + 2pq + q' = 1, where p' is the frequency of homozygous recessive plants (p' = p^2), q' is the frequency of homozygous dominant plants (q' = q^2), p and q are the frequencies of the two alleles as defined in part A.

p' + 2pq + q' = (0.1125)^2 + 2(0.1125)(0.8875) + (0.8875)^2
p' + 2pq + q' = 0.01266 + 0.1997 + 0.7875
p' + 2pq + q' = 1

So our value checks out, and indeed, the sum of the frequencies of all three genotypes (homozygous dominant, heterozygous, homozygous recessive) adds up to 1.

Which type of molecules combine to make up the protein portion of hemoglobin

Answers

Answer:

thhthnt

Explanation:

mmmht

In which era did human history begin?
A
Cenozoic
B
Paleozoic
С
Cambrian
D
Precambrian
E
Mesozoic

Answers

Answer:

Prehistoric

Explanation:

The Prehistoric Period—or when there was human life before records documented human activity—roughly dates from 2.5 million years ago to 1,200 B.C. It is generally categorized in three archaeological periods: the Stone Age, Bronze Age and Iron Age.

karl marx considered capitalism to be _____, but max weber argued that capitalism was very _____.

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Karl Marx considered capitalism to be irrational, but Max Weber argued that capitalism was very rational.

Karl Marx considered capitalism to be exploitative, oppressive, and unjust. In his view, capitalist societies are divided into two classes: the bourgeoisie, who own the means of production, and the proletariat, who sell their labor to the bourgeoisie in exchange for wages. Marx argued that the bourgeoisie extract surplus value from the labor of the proletariat, paying them less than the value they produce and pocketing the difference as profit. This, according to Marx, leads to alienation, inequality, and social unrest.

On the other hand, Max Weber saw capitalism as a rational and efficient system. Weber believed that capitalism arose out of a unique set of cultural and social factors, including the Protestant work ethic and the development of rational legal systems. According to Weber, capitalism created a rationalized, bureaucratic society that valued efficiency, predictability, and calculation. He argued that capitalism enabled unprecedented levels of economic growth and technological progress, but also came with a host of negative consequences, including disenchantment, rationalization, and bureaucracy.

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NEED AN ANSWER ASAP

Which of the following would have the GREATEST effect on reducing the effects of
climate change??

Carpooling to work

Recycling

Biking to work

Switching to renewable energy sources such as wind and solar

Answers

Answer:

Switching to renewable energy sources such as wind and solarExplanation:if you are not useing renewable then your useing the oppsite wich is bad

How does antifreeze work in frogs?

Answers

Wood frogs have an extremely unique adaption that allows them to survive even if as much as 65 percent of the water in their bodies freezes throughout the winter.

Wood frogs, in contrast to the majority of other species of frogs, do not need to remain submerged in water or below the frost line in order to survive. Instead, their bodies manufacture an antifreeze, which they then either superload or concentrate in certain organs. The glucose acts as an antifreeze, preventing the formation of ice crystals that could be harmful to the wood frog. Because of this adaption, wood frogs can now be found in Alaska and even further north!

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What do arthropods and segmented worms have in common?a. They both have segmented bodies during some stage of their life.b. They both have hard outer shells that are unmovable.c. They both have bones and vertebrae.d. They both lack any sense organs.

Answers

Arthropods are insects, spiders, scorpions, centipedes, crabs, etc. All of them presents sense organs (like eyes), as well as segmented worms (like sensory organs for taste). Therefore, d is incorrect.

Arthropods have hard outer shells but segmented worms don't. Therefore, b is wrong too.

Neither arthropods nor segmented worms have bones. Arthropods have only exoskeleton. So c is incorrect as well.

Both arthropods and segmented worms have segmented bodies, as it is clearly seen in many species. Therefore, the correct answer is a. They both have segmented bodies during some stage of their life.

Question 14 (2 points) The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called natural selection. O mutation. genetic drift. migration.

Answers

The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.

Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.

Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

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What happened to the deer population since the wolves have returned?

Answers

Answer:

They were eaten by them (wolves).

Explanation:

According to the food chain, wolves eat deers, therefore the deer population will decrease. But that isnt the case, it can be balanced or not. Balanced is when there is an equal amount of animals, in the food chain. and the vice versa for not.

Which of the following is an example of epeirogeny?
A. Rockies
B. Himalayas
C. Appalachians
D. Colorado Plateau
E. none of the above is an example of epeirogeny
AB. all of the above are examples of epeirogeny

Answers

Answer: E. none of the above is an example of epeirogeny.

Explanation: Epeirogeny refers to the gradual uplift or subsidence of large areas of the earth's crust, and none of the options provided describe such a process.

The Rockies, Himalayas, and Appalachians are examples of orogeny, which is the process of mountain building through tectonic activity.

The Colorado Plateau is a region characterized by flat-lying sedimentary rocks that have been uplifted by tectonic forces, but it does not describe the gradual uplift or subsidence of large areas of the earth's crust.

After teaching a group of students about hemophilia, the instructor determines that the students have understood the information when they identify hemophilia a as involving a problem with?

Answers

After teaching a group of students about hemophilia, the instructor determines that the students have understood the information when they identify hemophilia A as involving a problem with Factor VIII.

What is hemophilia A?

Hemophilia A is a type of blood disorder that is genetically related to the deficiency of clotting factor VIII.

This usually affects the males and females are usually the disorder carries.

Therefore, after teaching a group of students about hemophilia, the instructor determines that the students have understood the information when they identify hemophilia A as involving a problem with Factor VIII.

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1. Organ systems work to maintain a stable internal environment in living
things. This process is called *

Answers

Answer:

homeostasis

Explanation:

Pls help. I need answers for my Evolution crossword puzzle. What are the words to the definitions?

Pls help. I need answers for my Evolution crossword puzzle. What are the words to the definitions?

Answers

Evolution scientific theory explaining how new species and varieties originate. The process by which new species or populations of living organisms develop from preexisting ones over repeated generations.

3 terms that best describe evolution?

Three words—change over time—are all it takes to sum up evolution. The diversity we witness now is the product of the lengthy history of change that life has undergone.

What are the five evolutionary lines?

There are visible results of evolution. The fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology are the five sources of evidence that support evolution. Evolution is the process by which a population of organisms changes as new generations replace ancestors.

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When B and T cells are fully developed and matured, they are described as being
A. Immunocompetent •
B. Pluripotent stem cells
C. Primary lymphatic cells
D. Specifically promotes
E. Germ cells

Answers

When B and T cells have fully developed and matured, they are described as being immunocompetent. So, the correct option is A.

This means that they are capable of recognizing and responding to specific antigens, which are foreign substances that can trigger an immune response. B cells are responsible for producing antibodies that can target and neutralize antigens in the body, while T cells can directly attack infected or abnormal cells. Immunocompetence is essential for the proper functioning of the immune system and for protecting the body against infections and diseases.

B and T cells undergo a complex process of differentiation and maturation in the thymus and bone marrow, respectively, before they become fully functional. During this process, they acquire unique receptors that can recognize specific antigens and become specialized to perform specific immune functions. Once they have matured, B and T cells circulate in the bloodstream and lymphatic system, ready to respond to any foreign invaders that may enter the body.

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quuizlet in an in vitro polymerization reaction of f-actin from its g-actin subunits, there is a lag phase (rate-limiting stage). what happens during this lag phase? a: f-actin is nucleated b: f-actin reaches a steady state c: f-actin exchanges nucleotides d: f-actin hydrolyzes atp e: f-actin undergoes treadmilling

Answers

F- actin is nucleated. Nucleation is the rate-limiting step in the polymerization of actin filaments.

Bacteria prepare for cell division during the lag phase, which is a dynamic, structured, adaptive, and adaptable time period.

Actin nucleation process is typically thought to be responsible for the delay or lag phase at the beginning of the polymerization of actin by neutral salt. However, when Ca2+-containing actin is polymerized with MgCl2, a lag phase still exists when nucleation is avoided by using phalloidin-stabilized nuclei.

The creation of a tiny aggregate made up of three actin monomers is known as the nucleation phase of actin polymerization. The reversible addition of monomers to both ends of an actin filament allows it to grow, but only one end—the plus end—expands five to ten times as quickly as the minus end.

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List the characteristics, such as precipitation, temperature, and season in your area​ if you live in Tennesee

Please Help I am confused

Answers

Answer:

Tennessee has a varied climate due to its location in the southeastern United States, with a mix of humid subtropical and humid continental climates. Here are some characteristics of the climate and seasons in Tennessee:

Precipitation: Tennessee receives an average of 50-55 inches of precipitation per year, with most of the rainfall occurring in the spring, summer, and fall. Winter months tend to be drier, with occasional snowfall in some areas.Temperature: Tennessee has mild to warm temperatures throughout much of the year, with average highs ranging from the mid-40s to mid-50s in winter (December-February) and the mid-80s in summer (June-August). However, temperatures can vary widely across the state due to differences in elevation and location.Seasonal changes: Tennessee experiences four distinct seasons, with spring (March-May) and fall (September-November) generally being mild and pleasant. Summer can be hot and humid, with occasional thunderstorms, while winter can be cool to cold with occasional snow or ice storms.

Overall, Tennessee's climate is influenced by its location in the Southeast, its proximity to the Gulf of Mexico, and its varied topography, which includes mountains, plateaus, and river valleys.

Tennessee has a humid subtropical climate with hot summers and mild winters. The state experiences all four seasons with abundant rainfall throughout the year, especially during spring and winter. Tornadoes are common in Tennessee, and the state is also susceptible to occasional flooding and droughts.

Tennessee has a humid subtropical climate with four distinct seasons. Here are some characteristics of the climate and weather in Tennessee.

Tennessee receives an average of 50 inches of rainfall per year, with the highest amounts occurring in the spring and winter. Summer months tend to be drier.

The average temperature in Tennessee varies widely by season. Summers are hot and humid, with average high temperatures in the upper 80s to low 90s Fahrenheit. Winters are cool to cold, with average high temperatures in the 40s to 50s Fahrenheit.

Tennessee experiences four distinct seasons. Spring is typically mild and rainy, with occasional thunderstorms. Summer is hot and humid, with frequent thunderstorms and occasional heat waves. Fall is generally mild and pleasant, with changing leaves and cooler temperatures. Winter is cool to cold, with occasional snow and ice storms.

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where do we find chloroplast and chromoplast in hebiscuis

Answers

Answer:

Explanation:Chloroplasts are present in the cells of all green tissues of plants and algae. Chloroplasts are also found in photosynthetic tissues that do not appear green, such as the brown blades of giant kelp or the red leaves of certain plants. In plants, chloroplasts are concentrated particularly in the parenchyma cells of the leaf mesophyll (the internal cell layers of a leaf).

which does not carry out homeostasis prokaryote, cell, eukaryote, virus

Answers

Virus does not carry out homeostasis.

The entity that does not carry out homeostasis among the options provided is the virus. Homeostasis refers to the ability of an organism or a cell to maintain a stable internal environment. Prokaryotes and eukaryotes are both types of cells that possess the necessary mechanisms to regulate their internal conditions, such as temperature, pH, and nutrient levels.
Prokaryotes are single-celled organisms without a nucleus, like bacteria. Eukaryotes have a nucleus and other membrane-bound organelles, and they include organisms like plants, animals, and fungi. Both prokaryotic and eukaryotic cells perform homeostasis to ensure their survival and proper functioning.
Viruses, on the other hand, are not considered living organisms, as they cannot carry out essential life processes independently. They require a host cell to reproduce and function. As a result, viruses lack the cellular structures and systems necessary to maintain homeostasis on their own.

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Global warming is associated which of the followingIn a biology class, your friend had to read Jared Diamond’s essay The Worst Mistake in the History of the Human Race, which details the drawbacks of sedentary life and agriculture. Your friend wants to know why humans continued to farm in the face of disease and other issues. What would be a valid response? Group of answer choices?

Answers

Answer:

The correct answer would be - Having reliable access to food and being able to produce more calories per unit of land available led to population increase.

Explanation:

An increase in disease, sedentary agriculture, and increase in environmental degradation are three problem that is associated with the farming.

There are more benefits to continue agriculture is the ability of human kind to produce a food and access to plenty of food consistently which will led to increase the population.

Thus, the correct response would be - Having reliable access to food and being able to produce more calories per unit of land available led to population increase.

in prokaryotes, the plasma membrane can form internal pouches called ____________ , which are thought to increase the internal surface area for the attachment of enzymes in metabolic activity.

Answers

In prokaryotes, the plasma membrane can form internal pouches called mesosomes, which are thought to increase the internal surface area for the attachment of enzymes in metabolic activity.

Mesosomes are invaginations of the plasma membrane that are thought to play a role in cellular processes such as DNA replication, cell division, and respiration. They are typically found in prokaryotic cells, which lack membrane-bound organelles. The increased surface area provided by mesosomes is thought to facilitate the attachment of enzymes involved in metabolic activity, thereby increasing the efficiency of these processes.

However, the exact function of mesosomes is still not fully understood and is the subject of ongoing research.

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. What is the width of Grandmother’s pelvis, measuring from the pelvic brim? How does her pelvis differ
from Grandfather’s?

Answers

The width of Grandmother’s pelvis, measuring from the pelvic brim is 2cm.

The grandmother has a wider pelvis than the grandfather.

The pelvic brim is found at the edge of the pelvic inlet and measures around

2cm. The pelvis in females are always wider than those found in males. This

is due to the adaptation of the female pelvis to child birth.

The pelvis being wider aids the passage of the foetus from the womb and

eases childbirth. This is the reason why the grandmother has a wider pelvis

than the grandfather.

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What is the chemiosmotic gradient?

Answers

A greater concentration of hydrogen ions in the inner membrane space than in the mitochondrial matrix.

1. The null hypothesis for GLM are the same as for linear
regression.
Select one:
True
False
2. The link function is exactly the same as a transformation,
because it operates on the Ys.
Select one:
Tr

Answers

1. The null hypothesis for GLM is False.

While both linear regression and generalized linear models (GLMs) involve hypothesis testing, the null hypothesis is not the same for both. In linear regression, the null hypothesis typically assumes that there is no relationship between the independent variable(s) and the dependent variable, and any observed relationship is due to random chance.

In GLMs, the null hypothesis depends on the specific application and the type of GLM being used. It could involve testing the significance of specific predictors or comparing different models.

2. The statement "The link function is exactly the same as a transformation because it operates on the Ys" is False.

In GLMs, the link function is not the same as a simple transformation of the dependent variable. The link function relates the linear predictor (a function of the predictors) to the expected value of the dependent variable. It serves to model the relationship between the predictors and the response variable while accommodating different types of data distributions and addressing non-linearity.

On the other hand, a transformation of the dependent variable would directly alter the scale or shape of the data, without explicitly modeling the relationship with the predictors.

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An open spinal defect characterized by protrusion of meninges and spinal cord through the defect, usually within a meningeal sac is called:

Answers

Answer:

the answer to your question is meningoyelocele

The graphs show two different ways in which a population can change over time. Which statement is true? OA. Graph A's population experienced exponential growth after reaching carrying capacity. B. Graph A's population experienced logistic growth and reached carrying capacity. C. Graph B's population experienced exponential growth after reaching carrying capacity. D. Graph B's population experienced logistic growth and reached carrying capacity.​

The graphs show two different ways in which a population can change over time. Which statement is true?

Answers

Conclusion from both graphs indicates that D. Graph B's population experienced logistic growth and reached carrying capacity.​

What is population growth?

Population growth refers to the increase in the number of individuals in a population over time. It can be calculated by subtracting the number of deaths and emigrants from the number of births and immigrants in a specific period.

Population growth can be expressed as a percentage, and it can be used to analyze trends in population size and demographic changes. High population growth rates can have both positive and negative impacts on the economy, social structure, and environment of a region.

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