Dwarf planets are worlds that are too small to be considered full-fledged planets, but too large to fall into smaller categories.
In recent years, there's been a lot of hubbub about Pluto losing its status as one of the planets of the solar system. Pluto is no longer considered the ninth planet in the series of major planetary objects, but instead is now just one of the many so-called "dwarf planets." The debate started anew after the New Horizons mission passed by Pluto in 2015, revealing a world of surprising geological complexity. As of 2017, delegates from the mission are trying to get Pluto's planethood status back.
Astronomers estimate that there could be as many as 200 dwarf planets in the solar system and the Kuiper Belt. But the differences between planets and dwarf planets may not be obvious at first.
Dwarf planets of the solar systemThe International Astronomical Union defines a planet as being in orbit around the sun, has enough gravity to pull its mass into a rounded shape (hydrostatic equilibrium), and has cleared its orbit of other, smaller objects. This last criterion is the point at which planets and dwarf planets differ. A planet's gravity either attracts or pushes away the smaller bodies that would otherwise intersect its orbit; the gravity of a dwarf planet is not sufficient to make this happen. [Meet the Dwarf Planets of the Solar System]
Meet the dwarf planets of our solar system, Pluto Eris, Haumea, Makemake and Ceres.Credit: Karl Tate, SPACE.com contributorAs of 2014, the IAU recognizes five named dwarf planets: Ceres, Pluto, Eris, Haumea, and Makemake. But those aren't the only ones. Other solar system bodies that are possibly dwarf planets include Sedna and Quaoar, small worlds far beyond Pluto's orbit, and 2012 VP113, an object that is thought to have one of the most distant orbits found beyond the known edge of our solar system. The object DeeDee could also be a dwarf planet, according to observations made in 2017. According to NASA, scientists think that there may be more than a hundred dwarf planets awaiting discovery.
However, the debate over the status of dwarf planets, particularly Pluto, remains a hot topic. The primary concern stems from the requirement for a planet to clear out its local neighborhood.
"In no other branch of science am I familiar with something that absurd," New Horizons principle investigator Alan Stern told Space.com in 2011. "A river is a river, independent of whether there are other rivers nearby. In science, we call things what they are based on their attributes, not what they're next to."
Is a dwarf planet a separate entity from a planet, or simply another classification? The question may not be settled in the near future.
Which part of the electromagnetic spectrum can humans see with the naked eye? Infrared light
Ultraviolet rays
Visible light
X-rays
The answer is visible light. I have it in my notes.
Answer: B: Visible Light.
Explanation: One thing that I can say is that it is "Visible" it has it in the name but also visible light is a the part of the electromagnetic spectrum that is visible to eyes.
This type of water has a very low salt content when compared to the ocean.
Answer:
Freshwater
Explanation:
Freshwater is usually defined as those water bodies that are comprised of relatively very less amount of salt content. This includes rivers, lakes, and ponds. The amount of salt present in these water bodies is less than 1%, thereby providing the water on which the living beings are dependent on. It is comprised of less than 500 ppm of dissolved salts. These water bodies support a large number of aquatic animals.
Whereas, the ocean water body is comprised of high salinity.
Thus, the freshwater bodies contain low very salinity compared to the ocean water body.
What kind of mixture is blood
Answer:
Blood is a colloid which mainly contains red and white blood-cells, lymphocytes and plasma.
Explanation:
Believe it or not but blood is considered an organ. That’s because it contains a collection of different types of cells suspended in a liquid, the plasma.
The most obvious type of cell is the red blood cell (erythrocytes), which provides the red color to the blood and more importantly contains haemoglobin, an iron holding protein that binds oxygen or carbon dioxide. This way these gases are transported throughout the body. Oxygen towards the tissues, carbon dioxide outward of course.
Another very important blood cell type are the white ones (leukocytes). Without going into much detail (a lot of different subtypes exist) the white blood cells are responsible for one’s immunity. Some of these cells called macrophages like to swallow stuff that’s not supposed to be in your blood.
A third important type of cell, the smallest ones, are the trombocytes or platelets. The make sure you blood coagulates when you are wounded. Without them you would bleed to death.
Besides these cells a lot of different molecules or ions are dissolved or suspended in the plasma : proteins of which a lot of albumin, vitamins, minerals. The steady bloodstream makes sure every cell in your body is provided with the nutrients it needs.
Which of the following threats to biodiversity is a result of plants and animals introduced to an ecosystem where they are not normally found?
Answer:
THe answer is D Invasive species
Explanation:
I hope this helps
which of these is most likely to cause increasing numbers of severe weather events
Answer:
slowing of the thermohaline circulation
Explanation:
just got it right
one reason that electric power plants do not send out electrical energy as a direct current is that direct current can not be transformed explain why
This is because direct power has no pulsation (waveform characteristic) that is significant in electromagnetic induction. The gradual increase and decrease of power, at a given frequency, in indirect power is significant in electromagnetic induction. This enables transformers to induce electricity into the secondary coil, from the primary coil, at the core of the transformer.Transformers transform electric power by increasing or decreasing the voltage and current of electricity.
What is a Winter Storm Watch?
Why does warm water go on top of cold water
An mRNA strand has 204 bases to code for a protein from start to stop. how many amino acids will the resulting protein contain
The mRNA strand with 204 bases will code for a protein containing 67 amino acids, as each amino acid is defined by a three-nucleotide sequence, the codon. The subtraction of one is due to the stop codon which does not code for an amino acid.
Explanation:A protein sequence is made up of a chain of amino acids, each of which is coded by a three-nucleotide sequence in mRNA, known as a codon. Based on the number of bases in the mRNA strand, we can determine how many amino acids it will produce by dividing the total number of bases by three. In this case, the mRNA stand has 204 bases. However, the start and stop codons are also included in this count. So with 204 bases and 3 bases per codon, we have 68 codons. However, since one of these is a stop codon which does not code for an amino acid, the resulting protein will contain 67 amino acids.
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the group of organisms that can be larger than a kingdom is called a a. domain b. phylum c.species d. class
Answer:
a. domain
Explanation:
Domain is the largest group of organisms. Domain is super kingdom which holds the highest taxonomic rank when it comes to categorize animals. An American microbiologist named Carl Woese et.al. proposed it in 1990.
The three domains are mentioned as under:
1) Bacteria
2) Archaea
3) Eukarya
The organisms in the three domains are classified on the basis of the kind of lipid structure in their plasma membrane, the nucleotide sequences on the rRNA of their cells and their sensitivity towards various antibiotics. The Bacteria and Archaea domians comprise prokaryotic organisms whereas Eukarya domain comprises eukaryotic organisms.
After domain it is kingdom which is the second largest group of organisms in taxonomy.
what is the probability of these two parents having Color Blind Son?
This is a condition or illness that prevents the body or mind from working
In what process are cells with half the number of DNA strands are produced.
ahh pls help assappp
photosynthesis turns __________ into _________ energy.
What is the relationship between a mutation and a gene?
Answer:
For me its B
Explanation:
The plant Arabidopsis Thaliana Has a gene which has been found to show an unusually high rate of mutation which conclusion is best supported by this observation?
A. The genus control by environment and not heredity
B. Traits associated with this gene may vary greatly in the species
C. Traits associated with this gene are beneficial to the species
D. The gene codes for flower color in the plant
Answer;
The correct answer would be option B.
Mutation refers to the random change in the nucleotide sequence of the DNA.
If a mutation occurs in a protein coding sequence of the DNA, it can result in the change of phenotype of a gene.
Thus, if a gene has a high mutation rate in a population, then the genetic variation for that gene must be high in a population.
The high genetic variation would result in high variation in the phenotype or trait associated with that gene.
Explain how differences in the niche requirements of organisms can contribute to community patterns such as zonation
If you visited a savanna you would most likely see
If you visited a savanna, you would most likely see vast grasslands with scattered trees or shrubs.
Savannas are tropical or subtropical ecosystems characterized by a mix of grasses and scattered vegetation. They are often found in regions with a pronounced dry and wet season. One of the distinctive features of savannas is the presence of herbivores such as zebras, wildebeest, giraffes, and antelopes, which graze on the grasses.
These herbivores, in turn, attract predators like lions, cheetahs, hyenas, and leopards, which can often be observed hunting and feeding on the herbivores. Other common wildlife in savannas includes elephants, buffalo, and various bird species. The open landscape and diverse animal life make savannas popular destinations for wildlife safaris and nature enthusiasts.
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Ponds and lakes form when water collect in ... areas of land
when different tissues work together, they form a(n)
??
In the provided query, when different tissues work together, they form an organ.
Tissue is defined as a group of cells that have similar structure and functions.
An organ was a collection of tissues that work together to perform a specific function. For example, the heart is an organ that is made up of muscle tissue, connective tissue, and nervous tissue.
Organs are part of larger systems present in the body, such as the circulatory system, respiratory system, and digestive system. These systems are made up of multiple organs that work together to keep the body functioning properly.
Therefore, organ is formed when different tissues are working together.
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What is true of the genetic makeup of all body cells in the human body except for sex cells?
A.) It is different based on the cell type.
B.) It is the same no matter what the cell type.
C.) It is random even within the same cell type.
D.) It is used to sort cells into organs based on chromosomal differences.
Answer: yes the answer is B) it is the same no matter what the cell type.
Explanation: I took the test! Hope this helps! <3
the process of mechanical weathering when Rock cracks and flakes off its called__?
What are cells that express the same genes?
similar
different
mutated
not living
Answer:
Similar
Explanation:
Similar cells are the cells that express the same genes and perform the same function. Similar cells contain or store the same genetic instructions for performing similar specific functions. Cells are the basic structural and functional unit of a living organism. Cells are usually microscopic, and consist of a quantity of protoplasm surrounded by a cell membrane. Cells are able to synthesize proteins, and can replicate themselves independently. The two types of cells are; eukaryotic (cells with true nucleus) cells, and prokaryotic cells (cells without true nucleus).
Which is demonstrated by arrow 3?
a sandwich is made up of ham, lettuce,tomato, bread, and butter. describe two marcrimolecules cantined in the sandwich and effect on human body?
Which of the following diseases can cause paralysis?
polio
yellow fever
Rocky Mountain spotted fever
rabies
chicken pox
Among the diseases listed, polio, rabies, and Rocky Mountain spotted fever can cause paralysis.
- Polio is known for causing muscle weakness and paralysis, which can sometimes be permanent.
- Rabies, if left untreated, can lead to paralysis as the virus attacks the nervous system.
- Rocky Mountain spotted fever, a bacterial infection transmitted by ticks, can lead to neurological symptoms including paralysis in severe cases.
The incorrect options are:
Yellow fever: Yellow fever is a viral hemorrhagic fever caused by the yellow fever virus, primarily transmitted by mosquitoes. While yellow fever can cause various symptoms such as fever, headache, jaundice (yellowing of the skin and eyes), and even liver damage, it typically does not lead to paralysis.
Chickenpox: Chickenpox is a highly contagious viral infection caused by the varicella-zoster virus. While chickenpox can cause discomfort and itching due to its characteristic rash of itchy blisters, it does not typically lead to paralysis.
Which type of electromagnetic radiation is the only type that humans can see with their eyes? (2 points) Gamma rays Ultraviolet rays Visible waves Rays
Humans can only see visible light, with a wavelength range of 380 to 740 nm, which falls within the larger electromagnetic spectrum.
The type of electromagnetic radiation that humans can see with their eyes is called visible light. This form of radiation has wavelengths that range between approximately 380 and 740 nanometers (nm). The electromagnetic spectrum is vast and includes other types of radiation like gamma rays, ultraviolet rays, infrared light, microwaves, and radio waves, none of which can be seen by the human eye. Visible light represents a very small portion of the electromagnetic spectrum but is essential for human vision, as our eyes are sensitive to this range of wavelengths.
Gamma rays have the shortest wavelengths and are highly energetic and potentially harmful, but they are absorbed by Earth's atmosphere. Ultraviolet (UV) rays have slightly longer wavelengths than visible light but are still too short for us to see. Infrared light has longer wavelengths and can be felt as heat rather than seen. Radio waves have the longest wavelengths and the least energy and are also not visible to humans. The capacity to see visible light is an evolutionary adaptation to the types of waves that effectively reach Earth from the sun and penetrate our atmosphere without being blocked except by clouds.
Pinworms have smooth bodies, bilateral symmetry, and complete digestive tracts. What type of animal are they? cnidarians flatworms annelids nematodes
Certain bacteria living in a human's large intestine help to produce vitamin K. The bacteria get nutrients from the human. This relationship is an example of * mutualism commensalism plant parasitism animal parasitism
The grass is the base of this food pyramid. The grass produces energy to support the entire pyramid or food chain through what process? A) predation B) respiration C) photosynthesis D) cell respiration
Answer: Option C.
Photosynthesis.
Explanation:
The grass produce food at the base of the pyramid through a process of photosynthesis.
Photosythesis is the process where green plants produce food and oxygen by using light energy from the sun with carbondioxide and water . It is at the base of food pyramid because it is the primary producer.