What causes black holes to form?

Answers

Answer 1
Most black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become dense neutron stars, which are not massive enough to trap light.) ... When the surface reaches the event horizon, time stands still, and the star can collapse no more - it is a frozen collapsing object.

Related Questions

The Diagram shows structures that form the surface of the trachea.
Which level of organisation is the structure labelled S ?
A. Cell
B. Organ
C. Organ system
D. Tissue

Answers

Its the tissue that is labeled s

Structure S is a simple columnar epithelium, which is a type of tissue.

The diagram shows the structures that form the surface of the trachea. The trachea is a tube that carries air from the lungs. The surface of the trachea is lined with a layer of tissue called the epithelium. The epithelium is made up of cells that line the inside of the trachea.

The structure labelled S is a type of epithelium called a simple columnar epithelium. Simple columnar epithelia are made up of cells that are arranged in a single layer. The cells in a simple columnar epithelium are tall and column-shaped.

The simple columnar epithelium in the trachea helps to protect the trachea from infection. The cells in the epithelium produce a mucus that traps dust and other particles. The mucus is then carried away by the cilia, which are tiny hairs that line the trachea.

The other levels of organization in the diagram are organ, organ system, and cell. The trachea is an organ, which is a collection of tissues that work together to perform a specific function. The respiratory system is an organ system, which is a group of organs that work together to perform a common function. Cells are the basic units of life, and they are the building blocks of tissues, organs, and organ systems.

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Environmental science can include which of the following disciplines?
Political Science
Chemistry
Ethics
Botany

Answers

Answer:

I'd say Chemistry! Hope this helps! :)

Explanation:

Environmental science can include which of the following disciplines Botany.

What is environmental science?

"The term environmental science refers to a grouping of scientific disciplines that are all concerned with the physical, chemical and biological characteristics of the surroundings in which organisms live."

What is botany?

"Botany, branch of biology that deals with the study of plants, including their structure, properties, and biochemical processes."

What are the principles of environmental science?

Four basic principles of environmental science are put forward in this paper:

systematic principle of environment,principle of environmental capacity,symbiosis principle of human between environment,entropy principle.

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Which process is absent in animal cells?


making proteins

chemical reactions

respiration

photosynthesis

Answers

Answer:

photosynthesis

Photosynthesis animal cells does not use a photosynthesis ☺️.

help taking final will give the breian thing

Answers

what is your question? i cant download it

The breathing rate of an aquatic animal is more than that of of a terrestrial animal . Why ?​

Answers

It has to filter out the small amount of oxygen in the water, unlike terrestrial creatures.

Answer:

Since the amount of oxygen dissolved in water is comparatively lower than that in air, the aquatic animals have to breath rapidly to take in sufficient oxygen. Thus, the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms

You contract an infection from an unknown pathogenic organism. Your doctor conducts a biochemical analysis of the pathogen and discovers that it contains chitin. The pathogen is most likely a

Answers

Answer:

Fungus

Explanation:

Chitin is a fibrous substance consisting of polysaccharides and forming the major constituent in the exoskeleton of arthropods and the cell walls of fungi. This would point to it most likely being a fungal agent. Hope this helps!

Chitin is a natural polymer and a nitrogenous carbohydrate. The cell walls of fungus pathogens are formed of the N-acetylglucosamine polymer chitin.

What are pathogens?

Pathogens are germs that enter, grow, and cause sickness in their host's body. It simply needs a host body to live.

Pathogens have the ability to circumvent the immune system. It likewise relies on body chemicals to survive. Depending on the kind, these bacteria can move from one host to another in a variety of ways.

What are fungus pathogens?

The plant is home to millions of fungus species. Not all of them are pathogenic. Only roughly 300 of them are capable of causing disease. Fungi can be found on the surface of your skin or inside your food. They only cause illness if they overgrow.

Fungi have two protective layers, a membrane, and a cell wall, and they are difficult to destroy. The severity of a fungal infection might vary.

What are the examples of fungus?Ringworm.Vaginal yeast infection.Jock itch. Other fungi

Thus, we can conclude that the unknown pathogenic organism is fungus because fungus pathogens contain chitin.

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what is the first part of the small intestine called?

Answers

Answer:

The first part of the small intestine is called duodenum

Explanation:

The small intestine is a tightly folded tube which connects to the stomach on the top end and to the large intestine on the bottom end.

The small intestine consists of three parts:

duodenumjejunum (absorbs sugars, amino acids, and fatty acids)ileum (absorbs remaining nutrients that did not get absorbed by the duodenum or jejunum)

Duodenum is responsible for completing the first phase of digestion. In this section of the intestine, food is mixed with enzymes and bile which help break down food.

Answer:

Duodenum

Explanation:

Duodenum is the first part where most of the small intestine digestion happens

Which equation represents the photosynthesis process?
a
CO2 + Glucose ----> H2O + Sunlight + O2

b
CO2 + H2O + Sunlight ----> Glucose + O2

c
CO2 + H2O ----> Glucose + O2

d
Glucose ----> CO2 + Alcohol + ATP

Answers

Answer: B

Explanation:

................

What is the correct sequence in the transmission of a neural impulse?

Answers

Answer:

A nerve impulse begins when a neuron receives a chemical stimulus. The nerve impulse travels through the axon membrane as an electrical action potential to the axon terminal. The axon terminal releases neurotransmitters that carry the nerve impulse to the next cell

Explanation:

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The three possible fates of light striking a photosynthetic pigment are _____, ____ and transmission

Answers

Answer:

The three possible fates of light striking a photosynthetic pigment are reflection, absorbance/absorption and transmission

Explanation:

Compound use by cells to store and release energy

Answers

Answer:

Adenosine triphosphate (ATP) is a chemical compound cells use to store and release energy. An ATP molecule consists of adenine, the sugar ribose, and three phosphate groups.

what two numbers between 10 and 20 have 6 as their GCF

Answers

The two numbers would be 12 and 18.

The first fuel Paul’s body uses is ________________________ from Paul’s last meal, which are stored in his _____________ & his ______________ (technically the bits in his BLOOD are used up before that even). The body turns them into ____________, which is burned in ____________. That fuel lasts Paul about ________________.

Answers

1. The first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal.

2. These carbohydrates are stored in his liver and muscles (technically, the bits in his blood are used up before that even).

3. The body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration.

4. That fuel lasts Paul about 3 miles, 40 minutes ([tex]\frac{2}{3} \;hours[/tex]).

A fuel can be defined as the resources that power the body of a living organism such as a human being. Also, the three (3) main types of fuel that power the human body include the following:

OxygenWaterFood

Fat is a nutritional element of food and it is beneficial to the body of a living organism because after the body exhausts its carbohydrates, it then uses its own fat as a fuel to power the body.

In this context, the first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal. These carbohydrates are stored in his liver and muscles (technically, the bits of carbohydrates in his blood are used up before the storage).

Furthermore, the body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration. Also, the fuel would only last Paul for a distance of about 3 miles, 40 minutes ([tex]\frac{2}{3} \;hours[/tex]).

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Delia is interested in finding ways to cure diseases. Which of the following career fields would best suit Delia’s interest?

animal biology
cytology
zoology
nuclear biology

Answers

Answer: D) Nuclear biology

Match the type of stress to the correct type of plate tectonic boundary.

Answers

Answer:

compression:convergent

tension:divergent

shear:transform

the kidneys can permanently remove substances that affect ph balance by secreting them into the ____________ .

Answers

The kidneys secrete an enzyme called renin that aids in the regulation of blood pressure.

A patient with advanced kidney disease is likely to be suffering from azotemia, which is an unusually high blood urea nitrogen (BUN) level.

A disease that results in an increase in the breakdown of muscle tissue would result in an increase in the presence of ammonia in the blood, which the liver would convert to urea and would then be excreted in the urine.

__________ is needed in the body to make vitamin D, bile acids, and cortisol. Group of answer choices Phospholipid Cholesterol Lipase Triglyceride

Answers

Explanation:

Cholesterol is the correct answer

Which macronutrient promotes root growth?

Answers

Answer: Phosphorus (P)

Explanation: Phosphorus is one of the important macronutrients of plants which promotes the plant root growth.

Phosphorus in good amount would lead to -

• Extensive roots

• Fewer shoots

• Stunted growth

Whereas if the plant deficits Phosphorus then it would lead to

• Poor root growth

• Few flowers or aborted flowers

• No fruits

2. A sugar, a phosphate group, and a nitrogen base form the building blocks of which macromolecule?
a) Carbohydrates
b) Lipids
c) Nucleic Acids
d) Proteins

Answers

Answer:

c) Nucleic acids

Explanation:

Because DNA has those components

The image shows an aspect of human culture. Whích aspect is illustrated in the image?

A. Tradition
B. Religion
C. Social organization
D. Language

Answers

The aspect of human culture illustrated in the image is language. Writing is one form of language.

Writing can be considered as a form of language, which that uses grammar rules to describe ideas and situations.

Writing is a system of symbolic communication composed of signs, meanings, and a code to link these signs with their corresponding meanings.

A written language can be defined as the schematic representation of a spoken/gestural language by using a writing system.

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Answer:

D. Language

Explanation:

Correct just take my word.

A gene has two alleles: A and a. In a population that is in Hardy-Weinberg equilibrium, 9% of individuals have the aa genotype. What is the frequency of the A allele

Answers

Not sure about what the question wants exactly, A alleles or AA alleles or Aa alleles. This is the answers for A alleles.

I have to screenshot the answer cuz Brainly says my words are rude. Sorry for the inconveniences!

many protists are single-celled organisms. which other characteristic is common to organisms in kingdom protista?

Answers

They are neither plants nor animals. They fall in the dustbin kingdom.

What is not a type of arrythmia?

ventricular flutter
atrial flutter
atrial fibrillation
ventricular tachycardia

Answers

Given what we know about anatomy, we can confirm that atrial flutter is the option listed that may not be considered an arrhythmia.

What is an arrhythmia?An arrhythmia is classified as an irregular beating of the heart. What this means is that the heart will beat at rhythms different from the normal. A normal heartbeat can increase or decrease in speed, but as long as the beating follows a regular rhythm it is not considered an arrhythmiaThe atrial flutter can cause the heart to beat much faster than normal but maintains a regularity.

Therefore, since the atrial flutter causes the heart to beat very fast, but maintains a regularity to it, we can confirm that this is not a type of arrhythmia given that an arrhythmia is classified as an irregular beating of the heart.

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Which is mixed with proteins to break them into amino acids?

Answers

Answer:

enzymes can breakdown proteins into amino acids

Answer: hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids

Explanation:

Use what you have observed to explain what occurs during a dehydration synthesis reaction.

Answers

In a dehydration synthesis reaction (Figure), the hydrogen of one monomer combines with the hydroxyl group of another monomer, releasing a molecule of water. At the same time, the monomers share electrons and form covalent bonds. As additional monomers join, this chain of repeating monomers forms a polymer.

A muscle contracts in response to an electrical signal that signals the ______________, the unit of contraction, to shorten.

Answers

Answer:

Sarcomere

Explanation:

A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction.

Why is Sodium stored in oil?​

Answers

Sodium is kept immersed in kerosene because Sodium doesn't react with kerosene.

What are the three parts of the cell theory?

Answers

Answer:

All living things are composed of cells.

Cells are the basic units of structure and function for living things.

All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.

Which part of the plant cell absorbs the energy needed for the process

Answers

Answer: chloroplasts

Explanation:

What flower has an ugly bud but a beautiful blossom?

Answers

Explanation:

Caladiums are tropical to sub-tropical plants grown mainly for their exquisite, colorful leaves. These foliage plants occasionally have a surprise up their metaphorical sleeve. Blooming on caladium plants isn’t common, but tubers planted in favorable locations tend to produce small flowers. These inflorescences aren’t as impactful as a rose or dahlia but have their own charm and, sometimes, a strong pleasant scent. There are several schools of thought on what to do with caladium flowers. While some growers believe pinching them off helps force energy to the tubers, others leave the small blooms with no ill effect on the plant.

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