Which statement is correct?

electrons of a neutral atom always equals the number of protons
neutrons always equal the number of protons
atomic weight is identical to atomic mass
neutrons always equal the number of electrons

Answers

Answer 1
The first statement is correct

Related Questions

carbon compound that stores and transmits genetic information

Answers

Deoxyribose nucleic acid (DNA)

compare and contrast:
bacteria and protists
protists and fungi
bacteria and fungi

Answers

Answer:

Bacteria are single-celled microbes

Explanation:

The primary difference between them is their cellular organization. Bacteria are single-celled microbes and are prokaryotes, which means they're single-celled organisms lacking specialized organelles. ... In contrast, protists are mostly single-celled eukaryotic organisms that are not plants, fungi, or animals.

What happens to plant cells
when they are exposed to
distilled water?

Answers

Contrastingly, when the plant cells are placed in distilled water, the concentration of water molecules is greater out of the cell than it is in the cell and therefore water moves into the cell by osmosis down the concentration gradient.

When plant cells are exposed to distilled water, they undergo a process called osmosis. The cells gain water and the cell swells. Thus, option B is correct answer.

Osmosis takes place when plant cells are submerged in distilled water, which has a lower solute concentration than the cytoplasm of the cell. To balance solute concentrations, water molecules flow through the semipermeable cell membrane. The vacuole of the water that enters the cell enlarges and presses on the cell wall.

The cell becomes hard and inflated due to this internal pressure, also known as turgor pressure. However, excessive water intake might cause cytolysis, which is the process when cells explode. The plant's overall health and cell structure are supported by this natural process of osmosis and turgidity.

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how do the walls of the atria and ventricles compare

Answers

The ventricles of the heart have thicker muscular walls than the atria.

Un conjunto de organismos habitando el mismo espacio, consumiendo el mismo alimento recibe el nombre de:

A. comunidad.

B. población.

C. especie.

D. ecosistema.

Answers

Answer:

ecosistema

Explanation:

How does natural selection impact a population

Answers

Answer:

People who acquire advantageous features have a greater chance of surviving, whereas individuals who have less useful traits are weeded out by natural selection. The higher the diversity of characteristics in a population, the greater the population's chances of survival.

natural selection is basically where stronger and smarter organisms survive and adapt. when a species changes locations or something happens to their habitat, they have to adapt. those that cant adapt will die off.

(giving brainliest and 30 points)
1. Discuss the environmental l issues to creating artificial life

2. Discuss the Social issues to creating artificial life

Answers

Answer:

1.the transition to life, the evolutionary potential of life, and the relation between life and mind and culture.

2.The creation of artificial life would have to consist, we assume, in the creation of an artificial living entity, henceforth an ‘artificial organism’.1 We will take an organism to be artificial just in case either

Explanation:

#keepsafe

which teaching about the humidifier is important for the nurse to provide to a client using oxygen?

Answers

Answer:

"Small water droplets come from this, thus preventing dry mucous membranes." The humidifier produces small water droplets which are delivered during oxygen administration to prevent or decrease dry mucous membranes.

Explanation:

Which is an example of an anabolic pathway?

A. A set of reactions that release energy that can be used to drive cellular work
B. A set of coupled reactions that are exergonic
C. A set of reactions that break covalent bonds between molecules to release free energy
D. A set of reactions that combine monomers into larger, more energy-rich polymers

Answers

Answer:

A.A set of reactions that release energy that can be used to drive cellular work

Explanation:

I am pretty positive that's it

why is rna synthesis called transcription and protein synthesis called translation?

Answers

Answer:

They are all part of protein synthesis. But RNA synthesis is called transcription because it is the process of making mRNA from DNA. Protein synthesis is called translation because the transfer of mRNA(which was made in transcription) to amino acids creates a chain of those acids which create proteins.

Explanation:

Transcription: The process of making mRNA from DNA.

mRNA is a type of RNA. m stands for messenger. Synthesis means making so RNA synthesis literally means making RNA which is what the process of transcription does. Additionally for protein synthesis the word simply means making protein which is what is happening in the process.

In the central dogma process, the genetic material gets copied and forms proteins needed for cell structure and functioning.

Transcription is the process of forming RNA from deoxyribonucleic acid. The DNA gets transcribed into ribonucleic acid.

The DNA formed by replication further processes and forms mRNA which is a type of RNA.

The formation of proteins from RNA with the help of ribosomes is called Translation.

In this process, the mRNA and tRNA translate and assemble amino acids into protein chains of the polypeptide.

Therefore, RNA synthesis is called transcription and the synthesis of protein is called translation.

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It needs to accept electrons from calcium to have a full outer shell.

Answers

Answer:

mark me brainlest

Explanation:

Calcium, Ca , is located in group 2 of the periodic table, which means that is has two electrons on its outermost shell. In order to have a complete octet, calcium must lose these two outermost electrons, also called valence electrons. Calcium will react with nonmetals to form ionic compounds.

In a typical animal, mitosis produces _________, while meiosis produces____________.

Answers

In a typical animal, mitosis produces two identical daughter cells, while meiosis produces four unique daughter cells.

Meiosis is a type of cell division that involves the parent chromosome being halved and then divided again to form four unique daughter cells which have only one copy of chromosome from the parent.

This occurs in sex cells such as the sperm and egg cells.

Mitosis is also a type of cell division but occurs with the parent cells to form two identical daughter cells.

This type of cell division have produces the same number of chromosomes the parents have and occurs in cells of the body which undergoes growth or during replacement of worn-out tissues.

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Crossing over results in ________.


asexual reproduction

the random arrangement of homologous chromosomes throughout the cell during meiosis

the survival of the sperm as they travel to the egg

the exchange of genetic material between homologous chromosomes

please help asap test due in 10 min will bomb if I don't have right wander

Answers

I believe the answer is: D - the exchange of genetic material between homologous chromosomes.

Explanation:

In crossing over, sections of DNA move between homologous chromosomes and allows for independent assortment.

Independent assortment states that genes are inherited independently of one another.

For meiosis to occur, the chromosomes contributed by each of the organism's parents are duplicated to form sister chromatids. During meiosis I, the sister chromatids of one parent match up with the corresponding sister chromatids of the other parent (synapsis), or its homologous non-sister chromosome, along the metaphase plate.

Crossing over then occurs. At a point called a chiasma, homologous chromosomes trade genetic information so that each chromosome is complete but has different information.

This random exchange of information is what allows for unique gametes to form and genetic recombination to occur.

help please and thank uu​

Answers

7.c

8.b

9.a

10.no answer

a. Copy and complete the word equation for photosynthesis.
Carbon Dioxide +____----->____+______
b. explain how chlorophyll helps this reaction to happen.​

Answers

Answer:

carbon dioxide + water + glucose + oxigen

Explanation:

Chlorophyll is responsible for the green color of plants, which through the process of photosynthesis transforms sunlight into natural chemical energy

Answer:

a. Carbon Dioxide + Water -----> Glucose +Oxygen

Sunlight

b. The light dependent reaction takes place within the thulakoid membrane and requires a steady stream of sunlight, hence the name light dependent reaction. The chlorophyll absorbs energy from the light waves, which is converted into chemical energy in the form of the molecules ATP and NADPH

Which is NOT a function of the skin?
a.Insulation
b.Movement
c.Excretion
d.Vitamin D Production

Answers

Answer:

a.insulation

Explanation:

insulation does not fall under functions of skin

Humans evolved in the Eocene period.

Answers

Answer:

Humans evolved in the Eocene period. Humans have impacted the rainforests through mining, agriculture, and construction. True. The Earth's history has had a significant effect on the characteristics of its organisms and biomes.

Explanation:

Answer: its false

Explanation: i answered true and it was wrong lol

what does it mean when one pupil is larger than the other

Answers

That is anisocoria. it’s not harmful but it should still be looked at by a doctor.

What best describes the function of the cell membrane

Answers

Answer:

The basic function of the cell membrane is to protect the cell from its surroundings. The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.

Explanation:

Heelllllppp pleaeeeees

Answers

Answer:

C.

Explanation:

More genetic diseases

Answer:

D.

Explanation:

hope its help >_< ^.^^_^

what would happen if I had a cell made of 30% glucose is floating into a beaker that contains 0% glucose. Would it a. swell b. stay the same c. shrink d burst open

Answers

Through osmosis, water can freely pass the membrane from the most diluted side to the less diluted one. Option a. swell

What is osmosis?

Osmosis is the simple passive transport of water molecules that occurs when two dilutions of different concentrations -in this example, the interior of the cell and the beaker content- are separated by a semipermeable membrane.

The membrane allows the pass of water but not solute (glucose). Hence, water can move from the most diluted side to the less diluted one. In other words, water moves from the less concentrated side to the more concentrated side (conserning the solute).

According to this information, the interior of the cell is more concentrated and less diluted than its exterior. Hence, water will move from the extracellular space foward to the cell interior, and the cell will swell.

Option a. swell

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呢额度和老婆俄哦呢 就可发热俄莆田市俄 ​

Answers

Answer:

那么问题是什么

我不明白

祝你今天过得愉快...

Gregor Mendel experimented on Mango plant to study genetics.
True or false

Answers

Answer:

I think false

Explanation:

Im pretty sure he experimented with Pea plants

which of these cavities contains the lungs and heart?

Answers

Answer:

What is the thoracic cavity contains heart, trachea, lungs, and esophagus.

Explanation:

what is the common method to prevent diseases class 9​

Answers

Maintain personal hygiene. Keep your surroundings clean. Consume clean food and water. Keep your environment and air clean

What do populations need to maintain homeostasis?
|

Answers

Answer:

All populations must have an adequate amount of food, water, shelter, and space to maintain homeostasis

Could more people be supported by 20 acres of land if they ate only plants instead of both plants and animals

Answers

Answer:

no,if they ate only plants then animals would die

Yes, more humans could be sustained if they ate only plants instead of both plants and animals.

Energy Flow in Ecosystem:-If you consume plants directly, you need roughly 10 pounds of plants to gain a pound. It takes about 10 pounds of plants to make 1 pound of meat. Instead of feeding an animal, this meal might be consumed directly by a human. Yes, more humans could be sustained if the food was fed to an animal first. Humans require around 100 pounds of plants to gain one pound. When one creature feeds another and absorbs the energy-rich molecules from its prey's body, energy is transmitted between trophic levels. The length of food chains is, however, constrained by the inefficiency of these exchanges. In order to obtain the energy they require, animals must hunt or gather food, whereas plants may produce their own food by utilizing the sun's light energy. The small green structures found in the green portions of plants called chloroplasts are where this process, known as photosynthesis, occurs.

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What are the final products of light

Answers

Answer:

The end products of the light reaction are ATP and NADPH,

What will happen if the function of the arteries is the same as the veins?

Answers

Answer:

Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.

Explanation:

give two characteristics of the endordermis of young root​

Answers

Answer:

The endodermis is the central, innermost layer of cortex in land plants.The endodermis helps regulate the movement of water, ions and hormones into and out of the vascular system. It may also store starch, be involved in perception of gravity and protect the plant against toxins moving into the vascular system.

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