What is the isotope for 18 protons and 28 neutrons?

Answers

Answer 1
Oxygen-15 is an isotope

Related Questions

Why are the reactions that occurred in early earth different from modern Earth?

Answers

because of the help of a living being in the form of plants/algae that enrich oxygen on earth, then after the oxygen is fulfilled, son, then living creatures such as animals, etc. will develop.

The reactions that occurred in early Earth were different from modern Earth due to several factors related to the planet's initial conditions and its subsequent evolution over billions of years.

1. Atmosphere: The early Earth had a drastically different atmosphere compared to the present one. It was primarily composed of gases like methane, ammonia, and water vapor, lacking significant amounts of oxygen. Modern Earth's atmosphere, on the other hand, is predominantly nitrogen and oxygen, with trace amounts of other gases.

2. Temperature: Early Earth was much hotter than it is now due to intense volcanic activity and the planet's heat from its formation. Over time, as the Earth cooled down, the temperatures became more conducive to different chemical reactions.

3. Surface conditions: The early Earth had a more active and geologically dynamic surface with frequent volcanic eruptions, impacting the types of reactions that could occur. Today, the Earth's surface is relatively stable and has developed diverse ecosystems.

4. Availability of elements: The abundance and distribution of elements on early Earth were different, as various geological and cosmic processes have influenced the planet's elemental composition over time.

5. Biological influence: Life itself has significantly impacted the chemical reactions on Earth. Early life forms, such as cyanobacteria, played a vital role in oxygenating the atmosphere through photosynthesis, which led to significant changes in the chemistry of the Planet.

These factors collectively shaped the early Earth's chemical landscape, fostering reactions that were distinct from those observed in the modern Earth we know today. As the planet evolved, so did its chemical and physical processes, leading to the diverse and complex environment we now inhabit.

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Which air mass has formed immediately north of Antarctica in the image?

Study the image.

maritime polar
continental polar
maritime tropical
continental tropical

Answers

Answer:

Maritime polar

Explanation:

In the image, the maritime polar is the air mass that has formed immediately at the north of Antarctica.

Whta is a maritime polar air mass?

A maritime polar air mass is a type of mass of extremely cold atmospheric air generated in the Noth and South poles.

These polar aim masses travel to lower latitudes in order to produce important rain precipitations.

As maritime polar air masses move they may collect warm and moist air from the surrounding ocean water.

In conclusion, the maritime polar is the air mass that has formed immediately at the north of Antarctica.

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The main source of energy used by the body is found in?

Answers

Answer:

carbohydrates

What is the process in which an organism makes a new organism? Question 4 options: Overlapping Relationship Reproduction Overproduction.

Answers

Answer:

reproduction

Explanation:

Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction.

Answer:

reproduction

Explanation:

The new element Matadorium (Ma) has three isotopes: Ma-284 (34.60%), Ma-285 (21.20%),
and Ma-288 (44.20%). What is its average atomic mass?

Answers

Answer:

I believe it’s 284.45

Explanation:

Because my friend just helped me and she said it was this but again I am not totally sure if it’s right.

how to defind the energy of radio​

Answers

Explanation:

Radio Frequency Is one of the electromagnetic frequency waves that lie in the range stretching from below 3 kilohertz to around 300 gigahertz and which includes the frequencies used for communication signals (such as for radio and television broadcasting and cellular telephone and satellite transmissions)

I hope this helps

1. Which statement best describes a biogeochemical cycle?
(a) A cycle that recycles chemical elements and water.
(b) A cycle that continuously cycles chemical elements and water.
(c) A cycle that continuously cycles chemical elements and water that are needed by organisms.
(d) A cycle that continuously cycles chemical elements and water that are needed by organisms
through an ecosystem.

Answers

The answer is D

(Hope this helped!)

The  statement that best describes a biogeochemical cycle is A cycle that continuously cycles chemical elements and water that are needed by organisms through an ecosystem (option d) is the biogeochemical cycle, which is important for the environment's sustainability.

What is the significance of the biogeochemical cycle?

It maintains the carbon cycle in regulating the Earth's climate, maintains the quality of air and water, regulates the levels of nitrogen in soil and water, supports the survival of other organisms, and maintains the carbon and nitrogen cycles. As a result, they are significant to all living organisms in the ecosystem.

Hence, the statement that best describes a biogeochemical cycle is A cycle that continuously cycles chemical elements and water that are needed by organisms through an ecosystem (option d)is the biogeochemical cycle, which is important for the environment's sustainability.

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What is carbon fixation, and how does it relate to photosynthesis?
It is the absorption of CO2 from the air, and it occurs during the light-dependent reactions.
It is the reduction of CO2, and it occurs during the Calvin cycle.
It is the conversion of CO2 into organic compounds, and it forms 3-PGA.
It is the production of CO2 during regeneration, and it forms RuBP.

Answers

Answer:

It is the conversion of CO2 into organic compounds and it forms 3-PGA.

Explanation:

Carbon fixation is one of the three stages in which the light independent phase of photosynthesis is divided into. It is the process whereby CO2, an inorganic source of carbon, is accepted by RUBP, leading to the formation of a 6-carbon compound that disintegrates into two 3-carbon molecules due to its instability.

The 3-carbon compounds are 3-phosphoglycerate or commonly known as 3-PGA. The carbon fixation stage is followed by reduction stage.

Answer:

C

Explanation:

edge 2020

zonez_faze xbl on yt

Is it coffee that affects protein digestion or one of the compounds of protein like caffeine, that affects protein digestion?

Answers

Answer:

Caffeine should have a significant effect on protein utilization and absorption,” explains Collingwood. Newgent says that because caffeine is a natural stimulant, it can also accelerate the digestion process.

Describe the conditions that cause igneous rocks to form large grains
or no visible grains.

Answers

Answer:

Explanation: When magma cools slowly beneath Earth's surface, large grains are formed. When cooling happens SO quickly there are no visible grains.

where are the protons and neutrons located in an atom?

Answers

Answer:

Nucleus

Explanation:

They are both located within the nucleus

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge).

1. Which factor most directly limits the variety of herbivores living in an area?
A. amount of nitrogen in the atmosphere
B. number of decomposers present
C. types of plants present '
D. kinds of minerals in the water

2. What is always at the lowest trophic level of the food chain?
A. some kind of animal
B. some kind of plant
C. decomposer
D. consumer

3. An overpopulation of coyote in a certain area will most likely lead to?
A. decrease in the amount of fresh water
B. an increase in the number of autotrophs available for food
C. a decrease in the incidence of disease
D. an increase in competition between the coyote

Answers

The answers to your questions are as follows :

The factor that most directly limits variety of herbivores in an area is : ( C ) types of plants presentThe lowest trophic level of the food chain is : ( B ) some kind of plant The overpopulation of coyote in an area will lead to : ( D ) An increase in competition between the coyote

Herbivores

Herbivores feed on variety of plants because not all herbivores feed on the same type of plant therefore an area with a variety of plants or grasses will have a variety of herbivores as well.

Trophic level

The lowest trophic level in a food chains are the primary producers which are green algaes and green plants.

Effect of overpopulation

Overpopulation leads to increase competition for basic amenities such as food, shelter and water. therefore the resulting effect of the overpopulation of coyotes is an increase in competition amongst themselves.

Hence we can conclude that the answers to your questions are as listed above.

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Which of the following irrigation methods may lead to increased soil erosion due to filling crop rows with water?

Flood
Drip
Furrow
Spray

Answers

I guess. It’s. F. L. O. O. Ddd

Answer:

Furrow.

Explanation:

Flood is wrong really just needed to look it up.

true or false: after cytokinesis 2 genetically identical daughter cells are produced

Answers

Answer:

True

Explanation:

Answer:

false.

Explanation:

Cytokinesis occurs after nuclear division (mitosis), which produces two daughter nuclei. Mitosis produces two identical daughter cells.

what does Eukaryote mean?
(Biology)

Answers

Answer:

an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus. Eukaryotes include all living organisms other than the eubacteria and archaebacteria.

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A snowshoe rabbit changing its fur color to white in the winter and back to
brown in the spring is an example of:

Answers

Um prolly evolution or adaptation, but I’d go with evolution

If there was not an increase in cyanobacteria in early Earth, what would have happened to Earth’s early atmosphere?
A. The amount of oxygen would have increased, causing an increase in aerobic autotrophs and heterotrophs
B. The amount of oxygen would have increased, causing a decrease in aerobic autotrophs and heterotrophs.
C. The amount of oxygen would have decreased, causing an increase in aerobic autotrophs and heterotrophs.
D. The amount of oxygen would have decreased, causing a decrease in aerobic autotrophs and heterotrophs.

Answers

Answer:

D.The amount of oxygen would have decreased causing a decrease in aerobic autotrophs and heterotrophs

Elizabeth then writes down observations about the rocks. Which of the following is an opinion?
A.
The marble rock is prettier than the quartz rock.
B.
The quartz rock has a greater mass than the flint rock.
C.
The marble rock has the greatest mass of the group.
D.
The flint rock has a mass of 30.5 grams.

Answers

The answer is A: The marble rock is prettier than the Quarz rock.

Answer:

A. The marble rock is prettier than the quartz rock

Explanation:

This is an opinion, whereas the other answers are facts.

What do you think happens to a fish’s behavior in cold climates during the winter? Explain your answer.

Answers

Fish are cold-blooded or poikilothermic, meaning that their body temperatures vary with the surrounding temperature. During the cold of winter fish become less active. They find little pockets out of the way of fast moving water where they can stay still and conserve energy.

What are the symptoms of poor blood circulation in the legs.

Answers

Answer:

1. Numbness of Extremities

2. Fatigue

3. Loss of Appetite

4. Digestive Issues

5. Weak Immune System

6. Chest Pressure

7. Decreased Cognitive Ability

8. Cold Extremities

9. Skin Discoloration

10. Dark Eye Circles

The distal end of the alveolar duct terminates as a dilated:.

Answers

The distal end of the alveolar duct terminates as a dilated Is alveolar sac because they are contain small saccular outpocketings called alveoli. promotes diffusion of gases between the alveolus and the blood in the pulmonary capillaries

One-tenth of a class is absent. If the
total attendance of the day is 126. Find
i Number of absent students
li Total number of students.​

Answers

Answer:

13 students

Explanation:

126 divided by 1/10 = 12.6

12.6 students can't be absent so you round to the higher number

13 students are absent

Hope it helped

Define the three isolation types

Answers

Temporal isolation, when species do not come into contact with one another due to timing. ... Behavioral isolation, when species' mating rituals are different enough from one another to prevent interest in copulation. Mechanical isolation, when physical differences between two animals prevent mating.
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tumors can grow their own tumors called __. ?

Answers

Answer:

Fibroids, or fibromas, are benign tumors that can grow on the fibrous or connective tissue of any organ.

Explanation:

I hope this is the answer that you were looking for.

(my bad if it isn't)

Benign, hope this is correct

someone please answer !! giving our brainliest !!

Answers

Answer:

b. A,C, and D

Explanation:

hope this helps and good luck on the rest

Which example best illustrates the point behind the Tragedy of the Commons essay? A.Various nations overfishing in international waters, leading to a collapse of fish stocks. B. ​​​​​​A property owner clear-cutting all of the trees on his land to sell for timber. C. ​​​​​​A farmer that over plants his fields one year, leading to a poor harvest. D. ​​​​​​One country declaring war on another.

Answers

Answer: B. A property owner clear-cutting all of the trees on his land to sell for timber.

Explanation:

The tragedy of the commons is a problem whereby an individual pursue his or her own personal gain at the expense of the overall well-being of everyone in the society.

In this question, the tragedy of commons will be a property owner clear-cutting all of the trees on his land to sell for timber. Even though the owner makes some income for himself, this act will bring about soil erosion, depletion of resource or flood. He neglected the society in order to satisfy his own needs.

Bone marrow cells with a defective gene are removed from a donor and grown in a sterile container. Viruses with the corrected gene are integrated into the bone marrow cells. The changed bone marrow cells are returned to the donor. This is an attempt at:______.

Answers

Answer:

BONE MARROW TRANSPLANTING

Explanation:

Difficulty in semantics, morphology, phonology, syntax, or pragmatics are characteristic of disorders of ________

Answers

Answer:

A spoken language disorder

Explanation:

Jenna notices that the speed of the wind has increased throughout the day. What is causing the faster wind?

Answers

Answer:

The Different in Air Pressure has Increased

Explanation:

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Deer are mammals, which means all deer are covered in fur. Deer live in many different environments, and all deer have fur all year round. In the winter, deer grow thicker fur coats to help keep them warm. Which of these traits is inherited? Which is acquired?

Answers

Fur is an inherited trait of deers, but growing thick fur coats in winter may be an adaptive trait.

Inherited and acquired traits

Inherited traits are dictated by genes while acquired traits are not backed by any gene.

Traits may be acquired as a result of a continued adaptation of organisms in order to survive in an environment.

However, some traits evolve by natural selection as organisms continue to struggle in their environments. Such traits are selected for by forces of natural selection and have genes that condition them.

More on inherited and acquired traits can be found here:  https://brainly.com/question/11936669

Answer:

A fur coat is an inheirted trait. A thick winter coat is an acquired.

Explanation:

inheirted means from their parents of by birth.

acquired is something where we learn from of that happens by the inviorment, or needs.

So, a fur coat is inheirted deers almost need it all the time since birth. And a thick winter coat deers only need for winter so its acquired.

hope it helps byeeee.

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