what is the basic unit of matter?

Answers

Answer 1

Answer: Atoms constitute the fundamental units of matter, and are a constituent of each element. In large part, the mass of an atom is determined by its positively charged  protons and neutral neutrons.

Explanation:

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Related Questions

If something is 12 grams and has a volume of 1.6 cubic centimeters, how many grams per cubic centimeter.

Answers

Answer: 7.5  grams per cubic centimeter.

Explanation:

We area given that , Mass of something is 12 grams

Volume of that thing is 1.6 cubic centimeters

To find gram per cubic centimeters, we will divide Mass by Volume ( which computes Density)

Number of gram per cubic centimeters = [tex]\dfrac{12}{1.6}[/tex]

Number of gram per cubic centimeters = 7.5

Therefore, 7.5  grams per cubic centimeter. (density of the thing)

How do white blood cells protect the body against infections

Answers

Answer:

White blood cells, which are also called leukocytes or white corpuscles, are a cellular blood component that does not include hemoglobin, have a nucleus, are motile, and protect the body from infections and diseases through ingestion of foreign materials and cellular debris, destruction of infectious agents and cancer cells or production of antimicrobials.

Explanation:

There are 4,500 to 11,000 cells in the white blood of a healthy adult person per cubic mm of blood. During the day, fluctuations in the number of white cells take place; lower values during rest and higher during exercise are attained. The quantity of white cells increases abnormally, while the number decreases abnormally, Leukopenia.

Intensive physical activity, seizures, extreme emotional response, pain, pregnancy, labor, and specific conditions such as infections and intoxications may increase the counting of white cells. In reaction to some types of infections or medication, or in conjunction with certain illnesses such as chronic anemia, malnutrition, or allergy, the number may drop.

Which example of a food production method is sustainable?
A. Planting a monoculture crop over large areas of land
B. Using no-till farming practices to decrease erosion
C. Using enough pesticides to reduce bee populations
D. Irrigating soil until it becomes waterlogged

Answers

The answer for this one is B. I hope I help! :)

What are wildfires? (With detail)

Answers

Answer:

A wildfire is an unplanned fire that burns in a natural area such as a forest, grassland, or prairie. Wildfires are often caused by human activity or a natural phenomenon such as lightning, and they can happen at any time or anywhere. In 50% of wildfires recorded, it is not known how they started.

Answer:

sự kiện lửa phát sinh trong một khu rừng, tác động hoặc làm tiêu hủy một số hoặc toàn bộ các thành phần của khu rừng đó.

Explanatin

What was the purpose of Hardy and Weinberg´s work?
A) To learn where genetic information is stored
B) To count the total number of alleles in the world
C) To learn how to control the mating of organisms
D) To determine how allele frequency changes

Answers

The answer is d because it evolves in random changes in a frequency of a allele to form a population.
I’m very positive that this is the correct answer. Let me know if you have any questions I’ll answer them the best I can :)

Answer:

Is D

Explanation:

check picture so match the answer

How is pH measured?
A. It is based on a scale of o to 14.
B. It is a percentage between 1 and 100.
C. It is a level between 1 and 4.
D. It is a decimal between 0 and 1.

Answers

A. it is based on a scale of 0 to 14

.5km/sec north by northwest is an example of
speed
acceleration
velocity
distance

Answers

Answer:

The answer is Distance.


When we ingest food containing large molecules such as lipids, carbohydrates,
and proteins, these molecules must undergo catabolic reactions whereby enzymes
split these into smaller molecules. This series of reactions is
A. absorption.
C. chemical digestion.
B. secretion.
D. mechanical digestion.

Answers

The answer is (c) chemical digestion

how does secondary succession differ from primary succession? it begins on bare rock or land, it begins where no plants have grown, lichens and mosses form soil first, soil nutrients are already in place

Answers

in georgia or in the crib

Answer:

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

what do you mean by the chromatin fibres ?​

Answers

Hey buddy I am here to help!

Chromatin fibers are coiled and condensed to form chromosomes. Chromatin makes it possible for a number of cell processes to occur including DNA replication, transcription, DNA repair, genetic recombination, and cell division.

Hope its helps!

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They form chromosomes

Explain the phenomenon you observe in the diagram. Provide as many details as possible to your explanation

Answers

Answer:

reflection

Explanation:

this is what is seen on the mirror

Which three statements contain information about cats that is based on scientific knowledge rather than opinion?

Answers

Answer:

First claim '' cats are very smart animal''. Second claim '' cats make bonds with humans''

Which type of bond forms between water molecules?

Answers

Answer:

Hydrogen Bonds

Explanation:

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--------------------------------------------------------------------------------------------------------------Question: Which type of bond forms between water molecules?

--------------------------------------------------------------------------------------------------------------Answer: Water is polar, and the dipole bond it forms is a hydrogen bond based on the two hydrogen atoms in the molecule. Hydrogen bonds are especially strong because the hydrogen atom in molecules such as water is a small, naked proton with no inner electron shell.

-------------------------------------------------------------------------------------------------------------

Anyone know this problem?

Answers

Answer:yoda

Explanation:

What’s going on , I wrote the right answer it said wrong

10. Michelle and David have been dating for almost two years. One night they
decide to take it further than kissing. Michelle asks if he has a condom. He says
no and that he will just pull out before he ejaculates so she won't get pregnant.
This is a really good method to use if you do not have another contraceptive
available. *
True or false?

Answers

False. this needs to be 20 letters

In a large population of sea stars, half of the individuals possess the red allele and half possess the purple allele. A change in the genome has been introduced, and many of those with purple allele are dying. Therefore, the red allele has become more frequent over time.

Which of the following requirements for the Hardy-Weinberg equilibrium is not being met?

Answers

Answer:

A

Explanation:

All mating must be totally random

Hardy-Weinberg equilibrium is a mathematical model that describes the genetic equilibrium of a population in terms of allele frequencies. It states that allele frequencies in a population remain constant over time in the absence of any evolutionary forces.

What are the requirements of the law ?

In order for this balance to be maintained, five basic requirements must be met: large population size, random mating, no mutations, no migration, and no natural selection. In this case, the starfish population does not satisfy the fifth requirement for no natural selection.

Natural selection occurs as individuals with the purple allele die off, resulting in the red allele becoming more common over time. This type of directional selection causes allele frequencies to deviate from Hardy-Weinberg equilibrium.

Therefore, no natural selection requirement is met in this starfish population. This causes allele frequencies to change over time, leading to a deviation from Hardy-Weinberg equilibrium.

Learn more about  Hardy-Weinberg equilibrium at:

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what is a function of ATP?​

Answers

Answer:

Explanation:

Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. ... In addition to providing energy, the breakdown of ATP through hydrolysis serves a broad range of cell functions, including signaling and DNA/RNA synthesis.

In chickens, FF produces extreme frizzle (very brittle and curly feathers), Ff has mild frizzle and ff has normal feathers. An extreme frizzle hen is mated with a normal rooster. What will the chickens look like? What will their genotype be?

Cross (parents):

Offspring will look like:

All of the genotypes will be

Answers

Answer:

if pure FF and pure ff marry, phenotypic ratio is all Ff or half-half

mild-ruffled feathers for all the chicks

Explanation:

makes sense

Label the lettered phases of the cell cycle according to the diagram in Figure. 1-1.


Figure 1-1


A =

B =

C =

D =

Answers

Answer:

Explanation:

A = G1 phase (Growth phase)

B = S phase ( Growth and DNA Synthesis)

C = G2 phase (Growth and final preparations for division)

D = Mitotic phase (Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis)

what can scientists learn from radiometric dating?

A- how long ago a plant or animal lived
B- how much time it took a fossil to form
C- where a plant or animal lived
D- whether a fossil has modern relatives

Answers

Answer:

Radiometric dating is used by geologists to determine the age of rocks and the ages of fossils found within them.

Answer:

It is how long ago a plant or animal lived or answer A.

Explanation:The more of certain item in a cell such as carbon or something like that each one is like I don't know like 100,000 years ago hope this helps.

what are end-product of digestion of starch,proteins and fats.​

Answers

Answer:

proteins - amino acids

fats - fatty acids and glycerol

starch - glucose

I hope this information was of any use to you.

Answer:

can you fart on my face

Explanation:

plz

The endosymbiosis hypothesis is supported by all of the following pieces of evidence except the fact that Group of answer choices chloroplasts reproduce through a splitting process like certain prokaryotes. mitochondria have circular DNA like prokaryotes. chloroplasts have ribosomes like prokaryotes. mitochondria lack ribosomes like prokaryotes.

Answers

Answer:

The correct answer is - mitochondria lack ribosomes like prokaryotes.

Explanation:

The Endosymbiotic Theory says that mitochondria and chloroplast in eukaryotic cells are developed by the once aerobic bacteria that were engulfed by a large anaerobic bacteria.

This theory suggests the origin of eukaryotic cells. Various evidence exists such as mitochondria and chloroplasts contain their own circular DNA like prokaryotic cells and mitochondria and chloroplasts have 70S ribosomes like prokaryotes have.

Cellulose is found throughout the cell wall of plant cells so cellulose make cells walls Ridgid which indicates that Cellulose is a

Answers

Cellulose makes cell walls rigid, so that would indicate that cellulose is a carbohydrate.

What would happen if there were no condensation stage in the water cycle?

Answers

answer : there would be no rain.

There would be no rain

can the enzyme DNA polymerase be used to break down or build lactose?

Answers

Yes it could because if you look it up it will tell you that it is used to break down .

Sodium metal reacts whit hydrochloric acid to produce salt and hydrogen gas. What are the reactants in this chemical reaction

Answers

Answer:

Na (sodium) and HCl (hydrochloric acid)

Explanation:

The products are the salt and hydrogen gas

Whenever you see the word react it means those are the reactants (usually whatever compound comes before and after the word). Because they are reacting with each other.

Whenever they say "is produced" those are the products

Which of the following is TRUE about the movement of earth's plates?
A. They do not move because they sit on a layer of solid rock
B. They move along with the layer of slightly softened rock below them
C. They move by floating on a layer of completely melted rock below them
D. They do not move until the solid rock layer beneath them temporarily melts and moves

Answers

Answer:

c

Explanation:

the tectonic plates or the crust of the earth sit on molten rock moving across the planet with causes the plates to move causing things like earthquakes and volcanos

Movement of Earth's plate can be due to many reasons and can cause many disasters. They move along with the layer of slightly softened rock below them

What is the 3 causes of this movement?

Earth's plates move due to the intense heat in the Earth's core. This causes the movement of soften rock in the mantle layer.

It moves in a convection cell pattern that forms by rising of warm, cooling and then sinking down of material.

The Earth's plates move by floating on a layer of completely melted rock below them.

Thus, the correct option is B.

For more details regarding movement of Earth's plate, visit:

https://brainly.com/question/3970445

Los gatos tienen muchas opciones para comer como ratones, peces, cucarachas, etc. Por ejemplo: Planta -> Ave -> Gato -> ??? ¡¿Quién mata al gato para comérselo?! POR FAVOR ESPARA UN PROYECTO DEL ORIGEN DEL GATO

Answers

Answer:

Pumas, lobos y coyotes, águilas, serpientes, halcones, búhos y perros.

Explicación:

Pumas, lobos y coyotes, águilas, serpientes, halcones, búhos y perros son los animales que matan al gato y se alimentan de ellos. Estos organismos son los depredadores de los gatos y dependen del gato y de algunas otras especies para cumplir con su requerimiento de alimento. Algunos animales matan directamente al gato a través de sus dientes fuertes, mientras que otros matan al gato a través del veneno que está presente en su boca.

Anaerobic prokaryotes use what
to obtain energy.

Answers

Answer:

they use anaerobic respiration in the absence of oxygen

1. The first person to observe cells was?

Answers

Answer:

robert hooke

Explanation:

The answer is Robert Hooke.
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Graph the Image of square KLMN after a translation 3 units left . Which must be true for natural selection to happen?A.) There must be genetic variation in the population.B.) There can be no competition for resourcesC.) All organisms must reproduce the same amount.D.) The population must be below carrying capacity. 7a - 2b = 5a + ba = 2ba = 3ba = a equals StartFraction 3 Over 2 EndFraction b.ba = a equals StartFraction 2 Over 3 EndFraction b.b The measures of the angles of a triangle are shown in the figure below. Solve for x. What is the purposepurpose of ConstructionManagement? do u know this guy...... At her initial evaluation, Ms. Jones reports that she has lost 25 pounds over the past eight months despite an increase in her appetite. She complains of extreme fatigue, heart palpitations and irritability. Clinical observations reveal a protrusion of the eyeballs and hand tremors. You suspect that she might have: a. hypothyroidism b. diabetes mellitus c. hypopituitarism d. hyperthyroidism Which of the following BEST describes the possible impact of tobacco use on families?A.Tobacco use can lead to financial difficulties.B.Tobacco use can cause increased incidence of illness.C.Tobacco use can lead to increased family conflict.D.all of the above 2) find an equation of the line theough the givenpoints. Give the final answer in slope-intercept form.(2,-2) (-1,4) How should the US respond when war breaks out between many countries, some of which are our allies? The weight of three articles is 856 kg. If two of the articles weigh 502kg, what is 1/2 the weight of the third article? A communications company has developed three new designs for a cell phone. To evaluate consumer response, a sample of n = 120 college students is selected and each student is given all three phones to use for one week. At the end of the week, the students must identify which of the three designs they prefer. The distribution of preference is as follows: Design 1 Design 2 Design 354 38 28Required:Do the results indicate any significant preferences among the three designs? What are the new challenges global politics has been facing in the post-Cold War world? Read the following excerpt from "The Significance of the Frontier in AmericanHistory":Behind institutions, behind constitutional forms andmodifications, lie the vital forces that call these organs intolife and shape them to meet changing conditions.What literary device is Turner using here?A. AnaphoraB. AlliterationC. MetaphorD. Simile what best reflects the views of the Republican Party in the late eighteen hundreds When two words with almost identical meanings have subtle differences, that is an example of a difference in theof the words:nuanceliteralnessdenotationimplication Which tense is this? Since I joined the Survey Corps, I get one surprise after another. If the diameter of the Ferris wheel is 70 feet across, find the total distance traveled in one revolution. There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 1 /9 . There are 63 marbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be. Why do you think it was difficult for the United States to expand west? Be specific and include two examples.