which best describes the big bang theory

Answers

Answer 1

Answer:

The expansion and cooling of the universe from an originally hot and dense state.

Answer 2

Answer: D. The universe formed during a single event in which all matter and energy suddenly expanded from an extremely small, dense, and hot point of pure energy called a singularity.


Related Questions

7. What is the water vapor concentration at the tropopause?

Answers

Answer:

99 %

The troposphere contains 99 % of the water vapor in the atmosphere. Water vapor concentrations vary with latitude. They are greatest above the tropics, where they may be as high as 3 %, and decrease toward the polar regions.

Explanation:

hope this helps <3

What are some way scientists
and engineers can
communicate information?

Answers

Answer: Some many talk face to face, email, phone discussions, or even text and blog. Scientists present their findings through conference presentations, peer-reviewed journals, and books.

Explanation:

How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction

Answers

Answer:

D. By decreasing the activation energy of a reaction

Explanation:

What is the primary source of energy for all
living organisms?

Answers

Thw primary source is the Sun

Answer: the sun

Explanation:

Please give me 5 stars!! :)

Award 80 points!b
What stage of mitosis is indicated in the picture below: (Whitefish blastula slide)
A Prophase
B Metaphase
C Interphase
D Anaphase
E Telophase

Answers

Answer:

c or b more likew c

Explanation:

Answer:

Metaphase on edge

Explanation:

I NEED HELP ASAP! (Picture is attacted) True or false answer. YOU DHA REAL ONE IF YOU HELP !

Answers

true ndjsjsjsjsjsjsjs

Cells can best be described as

Answers

cells can be known as the smallest living organisms in our body.

Cells can best be described as the fundamental units of life. They are the building blocks of all living organisms, including plants, animals, and even microorganisms.



Here are some key characteristics that describe cells:

1. Structure: Cells have a defined structure with a plasma membrane that separates the internal components of the cell from the external environment. Inside the cell, there is a variety of organelles, such as the nucleus, mitochondria, and ribosomes, each playing a specific role in cell function.

2. Function: Cells carry out various functions necessary for life. They perform metabolic processes, such as respiration, photosynthesis, and protein synthesis. Cells also maintain homeostasis, which involves regulating internal conditions to keep the cell functioning optimally.

3. Reproduction: Cells have the ability to reproduce. They can divide and create new cells through processes like mitosis and meiosis. This ensures the growth, development, and repair of tissues and organs.

4. Genetic Material: Cells contain genetic material in the form of DNA (deoxyribonucleic acid). DNA carries the instructions for cellular activities and determines the characteristics of an organism. It is organized into genes, which are passed on from one generation to the next.

5. Specialization: Cells can be specialized to perform specific functions within an organism. For example, muscle cells contract to enable movement, while nerve cells transmit electrical signals for communication. This specialization allows multicellular organisms to have different cell types that work together to maintain overall function.

Overall, cells are the basic structural and functional units of life. They are responsible for all the processes necessary for an organism's survival and are crucial for maintaining life's complexity and diversity.

To know more about Cells:

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8. A scientist noticed that the number of salamanders in ponds in Manatee County was
declining. This was a(n): (1 point)
O Hypothesis
O Theory
O Observation
Control

Answers

observation is the answer

hope this helps

Variation within organisms in a species increases the chance that a species will survive changing conditions. What kind of reproduction produces the most variation with species?
A) parthenogenesis

B) sexual reproduction

C) asexual reproduction

D) budding

Answers

Answer:

Sexual reproduction

Explanation:

please mark as brainlist answers

I only need part a and b

Answers

Answer:Cytridiomicosis.It affects parts of frogs skin that has Keratin in them.He has health workers that have an unusual tool for fighting the disease.

Why are the elephants facing a crisis?

Answers

Answer:

Many elephants are killed by poachers for their ivory tusk, the number of elephants in the world are decreasing

Explanation:

Google but in my own words

In the test for protein, why would some tubes show a slight purple color while others show a dark purple color?

Answers

Answer:

protein:

1. What is the name of the reagent used to test for the presence of proteins? (1 point)

           Biuret reagent  

2. What color indicates the presence of protein in a solution when the reagent is added? (1 point)  

When Biuret is added, it would turn blue when it is negative but if it is positive then it would turn to a purplish to a dark purple. Showing that there is protein.

                   

3. Which substances tested were positive for protein? (2 points)

The ones that were tested positive were milk solution and 50% egg solution.

4. Describe in your own words what we should do if the test tube for di-water tested positive for protein. (2 points)

Since Di water is our negative control, we know that there would be no proteins but if it was tested positive. Then we should start the experiment all over again this time with new, clean equipment.

HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide

Answers

Answer:

All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate

Explanation:

A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.

B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.

C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.

D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.

I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate

Hopes This Helps :)

I need help againnnnnn.....

Answers

Answer:

Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances.

Explanation: brainliest?

BEST ANSWER GETS BRAINLIEST FOLLOW FIVESTAR AND THANK YOU


Which sentence correctly explains the process and conditions needed for sleet to form? (15 pointsss :)

Group of answer choices:

A. During thunderstorms and extremely cold temperatures, water droplets freeze in layers and form balls or chunks of ice.

B. Both the temperature of the cloud and the temperature of the air must be below freezing in order for the flakes to fall from the sky.

C. A liquid form of precipitation that is formed in above freezing temperatures becomes heavier as it falls the ground in the form of raindrops.

D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.

Answers

green was not the impostor

Explanation:

u are all idiots

Answer:

gerijddhbdykbzdkvci

(03.01 LC)
Which of the following best describes the particles in an atom?
O Protons carry negative charge
O Neutrons carry positive charge
O Neutrons move around a nucleus
Electrons move around a nucleus

Answers

Electrons move around a nucleus

Answer:

Electrons move around a nucleus

Explanation:

My dog says so so give me the fiv star

Plants respond to all of the environmental stimuli listed except
A. the length of nights.
B. hormones.
C. loud noises.
D. temperature.

Answers

Answer:

C - Loud Noises

Explanation:

Please mark as Brainliest

Please help I’ll do anything nowwwe

Answers

Answer:

Exocytosis definition and purposes. Exocytosis is the process by which cells move materials from within the cell into the extracellular fluid. Exocytosis occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.

Explanation:

I hope this helps some. Please give Brainliest!

Fastttttttttttttttttttttttttttt I will give branliest

Answers

Answer:

ok

Explanation:

I will give Brainliest!!!!!!!!!!!!!!!!!!!
Please help me as soon as possible (T-T)

Answers

I think the answer is insulated gloves

Which grouping has the least complex body plan?

Answers

Answer:

The correct answer to this question is "poriferia."

Explanation:

The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Answer:

The correct answer to this question is "poriferia."

The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Explanation:the common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

13. In a forest, why do you rarely see young pine trees growing under a broad-leaved tree, such as a maple? If broad-leaved trees eventually take over a forest as pines die off, how does that affect other organisms living in the forest? How does it affect this forest ecosystem?*​

Answers

Answer:/Explanation:

Broad leaved trees would block the sunlight due to the size of their leaves. This would reduce the amount of sunlight that the pine tree could absorb, and would therefore inhibit its ability to efficiently perform photosynthesis. This would reduce the amount of food it could synthesise, and interfere with its growth and reproduction.

Without pine trees, the diversity of the ecosystem would be reduced. Several organisms rely on pine seeds and leaves as a food source. In the absence of pine trees, competition for other food sources could increase, and certain birds, squirrels etc. could die off.

Pine trees are also a habitat for many birds and small creatures. Without these trees, these animals could struggle to find efficient shelter.

How do you get the pH of a solution closer to neutral?

Answers

Answer: You can add neutral solutions with a pH of 7, like water. Water will dissolve the alkaline/acidic pH to near 7 and 8, which are safe to drink.

Hope this helps you!

describe the 4 steps of the nitrogen cycle :)

Answers

Nitrogen cycle consists of four main steps namely:

Nitrogen Fixation
Ammonification/ Decay
Nitrification
De-nitrification

Hope this helps :)

If an elements has two or more atoms with the same number of protons but different number of neutrons it is called a(n) _____________.
Question 2 options:

isotope

neutron

electron

none of the above

Answers

Answer:

electron

Explanation: The reason for electron is because when an atom has neutrons and protons but a different number of neutrons it is called an electron

IF it wasn't helpful sorry :(

Which of the following shows an unsaturated fatty acid?

Answers

Answer:

I belive the answer is B or C

Explanation:

Answer: its D

Explanation: i got it wrong cause of these guys

Off the coast of the Pacific Northwest in the United States, the Pacific plate is being pushed underneath the North American plate in a subduction zone, caused by plate tectonics. As the rock from the Pacific plate is pushed under the North American plate, it is subjected to high temperatures and pressures. Which rock will be created from this process?

Answers

Answer:

Metamorphic rocks

Explanation:

When two oceanic plates collide, it occurs oceanic convergence. The thicker and older plate subduces under the other plate. As the thicker plate descends, it is heated and melted and its materials are incorporated into the mantle. The fast subduction originates magma. In the western Pacific crust is old and thick, and hence it submerges easier in the mantle.

Metamorphism provokes structural and mineralogic reordering in an original preexisting rock, under the influence of factors such as temperature and pressure, which are two of the most important and influencing ones.

This physic-chemical processes usually occur in deepness, many times related to plates movement and subduction processes. The sharped temperature rising might be caused by magma injection or by a deep placement or the original rock in a subduction zone.

According to the metamorphism processes, there are different kinds of metamorphic rocks. Metamorphic rocks that are the product of subduction event, belong to "regional metamorphism" which includes a huge area, and among this classification, "underground metamorphism" is associated with plates subduction, with a range temperature among 400-600ºC.  

CO₂ is an example of a compound. True or false?

Answers

Answer:

True

Explanation:

Carbon dioxide, CO2, is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. It is exhaled by animals and utilized by plants during the process of photosynthesis.

A species is a particular type of living thing that can reproduce by interbreeding among themselves.

True False

Answers

I believe the answer is True. I could be wrong but let me know!!

Please help me identify the parts of this cell: No trick answers please

Answers

Answer:

1- membrane

2- ribosomes

3- mitochondrion

4- rough ER

5- dna

6- nucleolus

7- cytoplasm

8- nucleus

9- smooth ER

10- vesicles

11- golgi body

12- lysosome

Explanation:

1 . Plasma Membrane
2 . Ribosomes
3 . Mitochondria
4 . Rough Endoplasmic Reticulum
5 . Chromatin
6 . Nucleolus
7 . Cytoplasm
8 . Nucleus
9 . Smooth Endoplasmic Reticulum
10 . Golgi Vesicle
11 . Golgi Apparatus
12 . Lysosome
Other Questions
AssessmentA customer hands you $3,850 in cash and would like to purchase 14 prepaid cards of$275 each. The customer hands you the cash with an expired ID, and is expecting you toprocess the transaction.You must decline the transaction for the following reasons: (Select all that apply)A customer may not purchase more than $2,000 in prepaid cards within a 24-hour period.We do not sell prepaid cards.The POS will prompt for customer ID for all prepaid card purchases.Customer ID must be a valid (not expired) government issued photo ID (US or Canadianissued driver's license, state ID, passport; US military ID, US Territory ID)The customer appears to be purchasing prepaid cards just below the threshold where an IDwould be needed.The customer is attempting to purchase more than the allowable number of gift cards in asingle transaction. Use complete sentences in your own words !! In your own words (Please don't search it up, and don't answer if you don't know.)Please tell me the meaning of Outcome Variable and Test VariableThank you! What devices made exploring the seas possible? Help Apex English 9-2 quiz 2.2.7 Under the Constitution, who has the most power in the United StatesA. citizensB. government (6 points) Calculate the maximum number of moles and grams of H2S that can form when 158 g of aluminum sulfide reacts with 131 g of water: Show work for full poi when solving the equation x3 = 22. The equation of the line in the graph is y = ___ x + ___ .I really need the help :) thx Which describes the purpose of body paragraphs in an argumentative essay? Check all that apply.to use quotations that enhance the positionto establish the topic and introduce the claimto include reasons and evidence from researchto add examples that support the main ideato restate the claim and provide a clear summarythe answers are:to use quotations that enhance the positionto add examples that support the main ideato include reasons and evidence from research Explain three(3) differences between the Centralist political party and the Federalist political party of Mexico. Which one most resembles the American political structure of today? Why do the changes to the mass of the planet NOT AFFECT the orbital path of the Planet? Is the cladogram pictured here correct? Does it accurately represent the cladistic relationships between these species based on their derived characteristics? Why or why not? PLEASE ANSWER QUICK leggings are 54.95 they are 30% off how much are they? what is coefficient of x in Y^2x+y 12-50what is the answer please Choose the correct written expression for: (9 x 4) divided by 6.Options:he quotient of 9 and 4 times 6divided by the product of 9 and 4 the product of 9 and 4 divided by 69 times 4 divided by 6 Can someone sort this please I WILL MARK BRAINLIEST which statement best describes the economy of the carolinas A. the north and south had equal numbers of plantations B. the south had more plantations than the north C. the north had more plantations then the south i need an answer help !