Answer:C
Explanation:
just took
Before a star is born, the matter that will become the star exists as a what?
A: Cool, Dark Nebula
B: Black hole
C: Red Giant
D: Bright explosive supernova.
Answer:
A: Cool, Dark Nebula
Explanation:
Before a star is born, the matter that will become the star exists as a interstellar gas and dust. The stars are formed as a result of the force of gravity compresses atoms in the interstellar gas. Then the fusion reaction begins. During this fusion reaction the temperature gets extremely high and all the material evolves into a hot bright star.
what is true of a population
Answer: all members live at the same time all members live in the same area and all members are the same species
Explanation: trust
The _____ states that energy is neither created nor destroyed.
A) Downstream
B) Meltdown
C) Turbine
D) Ethanol
E) Passive solar cooling
F) Utility
G) First Law of Energy
H) Refinery
I) Isotopes
J) Second Law of Energy
Answer:
first law of energy
Explanation:
please mark brainiest
Answer- G) First Law of Energy
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Which statement correctly describes the pH of water?
A. The pH of water increases as its temperature increases.
B.The pH of water is neutral.
C.Water contains more hydrogen ions, giving it a higher pH.
D.water is neutral and has a pH of 0.
O warn people about which food is safe to eat o develop a strategy to prevent future algal blooms o warn people to stay away from the affected area o evacuate all wildlife from the bay
Answer:
evacuate all wildlife from the bay
Explanation:
Answer: The answer is to evacuate all wildlife from bay.
Explanation:
Which blood vessels are primarily responsible for gas exchange? This is last quesion
Answer:
capillaries
Explanation:
gas exchange happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries
The ______ states that energy always changes from high quality to low-quality forms.
A) Downstream
B) Meltdown
C) Turbine
D) Ethanol
E) Passive solar cooling
F) Utility
G) First Law of Energy
H) Refinery
I) Isotopes
J) Second Law of Energy
Answer:
J) Second Law of Energy
Explanation:
second law of thermodynamics. Scientific law stating that whenever energy is transformed from one type to another in a physical or chemical change, the result is a lower-quality or less usable energy.
Dna is made of chains of four smaller molecules called.
Answer:
DNA is made of chains of four smaller molecules called "Nucleotides".
Explanation:
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine) in DNA is known as a nucleotides.
2. When do you think punctuated evolution is most likely to occur and why?
Answer:
because the trigger for this is commonly encountered like a change in temperature
What volume will 454 g (1 lb.) of H₂ occupy at 1.05 atm and 25.0°c
Answer:
Explanation:
V = 5.24 × 10^3L
H
Animals store most of their excess energy reserves as _____
and this is explained because
Animals store the extra energy as the complex carbohydrate glycogen.
What is glycogen?Glycogen is a polysaccharide of glucose. It serves as a form of energy storage in fungi as well as animals and is the main storage form of glucose in the human body.
The excess energy reserve as starch in case of plants and glycogen in case of animals.
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What causes the day/night cycle of Earth?
Earth's spinning in space
The sun's rotation around Earth
The moon's rotation around Earth
Earth's orbit around the sun
Earth's orbit around the sun
Explanation:
The definition of an orbit is a circular shape, the rotation of one full circle or a range of experience. The 365 days it takes the earth to get around the sun is an example of the time it takes for a complete orbit or full circle around.
Place each description in the correct category.
represented by symbols
made of one type of atom
represented by formulas
cannot be broken down
can be chemically broken down
made of two or more types of atoms
Elements
Compounds
Answer:
The elements will break down into moister, h20
Explanation:
Which of the following is true of the first trophic level of all ecosystems?
This element is a gas, can only form one bond, and is found in compounds like carbohydrates. What is it?
Hydrogen
Water
Oxygen
or Carbon
AnswEr
⠀⠀Hydrogen is a gas which can only form one bond ( or single bond ) and , is found in carbohydrates .
⠀⠀⠀⠀⠀Because , It has only one electron in valence shell . To attain the electronic configuration of nearest inert gas , this element have only one electron to share , from which it can achieve his electronic configuration of nearest inert gas and complete his duplet .
what is the shortest wavelength?
Answer:
Violet or blue light has the shortest wavelength, making them more potent. Red or orange light have longer wavelengths, which makes them less potent.
I hope this helps :)
Explanation:
Answer:
Gamma Rays
Explanation:
Gamma rays have the shortest wavelength and the highest energy among the other waves in the electromagnetic spectrum. The wavelength of the gamma rays is less than 0.01 nanometers. Most of the gamma rays from space are blocked by the Earth's atmosphere.
Question 2(Multiple Choice Worth 3 points)
(02.06 LC)
Which of the following is a reactant during cellular respiration?
Carbon dioxide
Glucose
Energy
Water
Answer:
3
Explanation:
because we release carbon dioxide after cellular respiration.
The arctic fox is different from the brown fox. the color of the arctic fox’s fur changes to brown during the summer. the fur remains white during winter. the arctic fox lives in snow-bound regions, while the brown fox lives in forests. which three ways do these adaptations enable both foxes to survive in their surroundings? photograph on the left shows an arctic fox on a snow-covered landscape and photograph on the right shows a brown fox in a forest. the brown color camouflages the arctic fox when snow melts during the summer. the white color camouflages the arctic fox during the winter. the brown color camouflages the brown fox in the forest. the white color camouflages the arctic fox when snow melts during the summer. the brown color camouflages the brown fox in snow-bound regions.
The arctic fox is different from the brown fox. why brown color camouflages brown fox in forest and white color camouflages arctic fox in snowy regions.
What is camouflage?Camouflage is the set of techniques and methods that allow a given organism or object to remain indistinguishable from the environment that surrounds it. Examples range from the woody colors of the stick bug to the green-brown spots on the uniforms of modern soldiers.
With this information, we can conclude that the arctic fox is different from the brown fox. why brown color camouflages brown fox in forest and white color camouflages arctic fox in snowy regions.
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Drag each item to the correct location to indicate whether it describes the American or European weather model.
USA model predicts weather out to 10 days, 21 forecasts, four models, whereas European model is most accurate, with 51 forecasts and weather out to 16 days.
What are weather models?The weather models are defined as different models used to predict the weather around the world.
The Global Forecast System (GFS) model is developed by U.S. National Weather Service and consists of four separate models (atmosphere, ocean, land/soil, sea ice).
In conclusion, USA model predicts weather out to 10 days, 21 forecasts, four models, whereas European model is most accurate, with 51 forecasts and weather out to 16 days.
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Insulin, a nonsteroid hormone, binds with a cell membrane receptor causing activation of proteins inside the cell. What would you consider insulin to be in this example
We consider insulin to be Protein activator because it is responsible for the activation of protein inside the cell.
What is activator?Activators are those molecules that bind themselves to a substance and increase their activity. These molecules are the opposite of inhibitors that prevent a substance from doing its function.
So we can conclude that we consider insulin to be Protein activator because it is responsible for the activation of protein inside the cell.
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state five qualities of good draught animals. State four precautions to be observed when using draught animals
Answer:
1. Conformation
Conformation refers to the form or shape of an animal. An animal with good conformation has a shape which shows the normal characteristics of its species and breed.
An animal used for draft must have a build well suited for pulling. It should be low to the ground, have powerful shoulders and legs, and have a broad frontal dimension that will accommodate the placement of a harness. It must be big enough to deliver, alone or in a pair, the power needed to pull equipment for an extended period of time. It must also be able to exert the concentrated or "instantaneous" effort needed to overcome temporary increases in the draft requirement caused by roots, rocks, hard soil, or inclines.
While some animals are bred to produce good draft abilities, within any breed individual animals vary greatly in these qualities, and care must be taken to choose those with the most potential. A thin but well-balanced animal can be strengthened with a good diet, health care, and work. However, an animal with a swayback, bad legs or impaired vision will be a constant source of trouble.
Selection is a process of matching ideal qualities against those seen or latent in a given animal. Good draft animals, regardless of species or breed, will have the following qualities:
• head well proportioned; squarish, sculptured look
• balanced vision and hearing; head carriage high and straight
• normal mouth; good teeth and jaw structure
• body should have depth and width; short, full neck, full shoulders, broad chest, and straight, broad beck
• wide, thick hindquarters, lowset and evenly-fleshed
• short legs, straight and square to the body; ample bone
• clean, well-developed joints; no swelling or unusual boniness; no turning in or out of knees or hoofs; free movement of limbs
• feet straight, hard; normal angulation of hoof.
Temperament
Temperament refers to the nature or disposition of an animal. Part of its temperament is determined genetically, both by breed and parentage; some of it is learned-a response to the treatment it receives from other animals or the people who raise and handle it.
Temperament is reflected in an animal's behavior, the way it moves and acts, and the way it reacts to the things around it. It is difficult to know much about temperament from the quick evaluation that usually precedes the purchase of a draft animal. The buyer must guess, from what is observable, whether or not an animal will accept new routines or maintenance and training, behave well in a pair, and prove to be a spirited yet steady-paced and manageable worker. Sometimes, what is observable is not typical of the animal's behavior. A basically lethargic bull, for example, may become very alert or nervous at the approach of a stranger, exhibiting a fierceness that could be misinterpreted as a strong yet controllable spirit. A donkey that is mishandled and mismanaged might kick or butt at its owner, or at any adult, but be led away quite easily by a child. The buyer must be aware of such possibilities and at the same time drew some basic conclusions about the animal's temperament.
The following are signs of good temperament:
• Good overall conformation and health. The animal has no physical handicaps that require it to compensate with aggressive or stubborn behavior. An animal with bad vision or hearing, an unsound leg or joint, or with a chronic respiratory or muscular weakness, protects itself by balking, spooking, shying, refusing to be harnessed or lying down during work. Its temperament is affected or shaped by its physical condition.
• The animal accepts the handling of the owner. The owner can pick up the animal's foot, open its mouth, lead it with a rope without having to use force or harsh measures.
• It does not shy or kick at other animals. The buyer should try to be present when it is being turned out with a herd or put into a corral with other animals. If an animal is unusually aggressive or cowardly, it may not work well in a pair. Aggressive animals force their work-mates to shy or lean out of the yoke or harness, while cowardly animals may refuse to step evenly with their mates, lagging behind.
When an animal is taken from its herd or original owner and staked out or corralled in a new place, it may experience shock. The animal may show signs of aggression, withdrawal, stubbornness, fear, or general anxiety. None of these reactions is unnatural during the adjustment period, and should not be taken as a sign of an unsuitable disposition. An animal's character becomes clear later, during training and preseason work. At that time the farmer can judge the ability of the animal to work as part of a pair or team. Buying an animal early in the offseason allows the owner time to seek a replacement should a problem arise.
why is mushroom called a saprophytic fungus?
please let me know your answer ♡♡
Answer:
Mushrooms are the advanced members of a fungi group belonging to the class Basidiomycetes. They grow on dead and decaying matters like dung, and old rotten logs which are rich in organic matter. Therefore, they are saprophytic fungi.
In broad terms, the sunspot cycle tracks the:
A. movement of sunspots.
B. size of the sunspots.
C. overall color of sunspots.
D. changing number of sunspots.
In broad terms, the sunspot cycle tracks the D. changing number of sunspots.
What is the sunspot cycle?Also known as the sunspot cycle. An 11-yr cycle throughout which the variety of sunspots rises to a most or falls to a minimum. The periodic alternate withinside the variety of sunspots; the cycle is taken because the c programming language among successive minima and is ready 11.1 years.
The sun cycle, additionally called the sun magnetic interest cycle, sunspot cycle, or Schwabe cycle, is an almost periodic 11-yr alternate withinside the Sun's interest measured in phrases of versions withinside the variety of located sunspots at the sun surface.
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The first fossils of animals with hard parts appeared about 541 million years ago. What percentage of geologic time does the fossil record represent
The percentage of geologic time does the fossil record represent 20%.
What are Fossils and Fossil records?Fossils refers to remnants or traces once-living thing from the past. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants.
Fossil record is the compilation of all known and unknown fossils over a period of time.
The importance of fossil records includes:
1) Fossil records give scientists clues as to what the Earth was like millions of years ago.
2) Fossil records are used to determine how organisms alive today evolved.
3) It helps to understand how life in has changed over time.
Thus, percentage of geologic time does the fossil record represent 20%.
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What food chain is represented in the food web below?
Answer:
Each level in the food chain is called a trophic level.The different trophic levels are primary producers, primary consumers, secondary consumers, tertiary consumers and quaternaty consumers.
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ariannaajones12004
ariannaajones12004
18 hours ago
Biology
High School
The skin is an organ that protects the body and helps with sensing the environment.
Which of the following is true about skin?
Choose 1 answer:
(A) the skin is made up of tissue.
(B) the skin is made up of different tissues that carry out the same function.
(C) the skin is made up of tissues with different functions that work together.
option c
the skin is made up of tissues with different functions that work together.
hope it helps...!!!
What is the relative humidity of a dry-bulb temperature of 15°C and wet-bulb temperature of 12°C
The relative humidity of a dry-bulb temperature of 15°C and a wet-bulb temperature of 12°C is 71%.
What do you mean by Relative Humidity?Relative humidity may be defined as the proportion of atmospheric moisture present compared to the amount that would be present if the air were permeated.
Relative humidity can be calculated by subtracting the temperature of the dry bulb from the temperature of the wet bulb.
After getting a specific value, refer to the relative humidity chart at the particular value of the dry-bulb temperature.
Therefore, the relative humidity of a dry-bulb temperature of 15°C and a wet-bulb temperature of 12°C is 71%.
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Because the tuberculosis bacteria generally stay dormant after they invade the body, only ___________ percent of people infected with TB will ever develop the active disease. (9.2.5
Only 5-10 percent of people infected with Tuberculosis will ever develop the active disease.
What is Tuberculosis?This is an airborne and contagious disease which affects the lungs and can be treated using antibiotics.
Most times, it is dormant and only about 5 to 10 percent of people will ever develop the active disease.
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Which is the answer a b c or d.
what is the difference between an extinct species and a mass extinction?
Answer:
Well, an extinct species refers to a single species completely dying off whereas a mass extinction happens when a massive number of species all dye off at the same time.
Explanation:
For example, when the asteroid wiped out all the dinosaurs that was a mass extinction, but the gradual disappearance of the African Black Rhino would simply be considered as an extinct species because of the fact that not every kind of Rhino to ever exist was wiped out.
