D. Both are made of the same number of atoms. 3. Which of the following scientists added negatively-charged particles to the model of the atom? A. Niels Bohr B. John Dalton C. Ernest Rutherford D. J. J. Thomson 4. Calcium is an element. What is the smallest particle of calcium that has all the chemical properties of calcium?​

Answer:

commonly speaking precipitation, sometimes runoff from slides and stuff or even seepage

Explanation:

This means for his bones that his bones will become weak and brittle. Other parts of his body like the hip, wrist, and spine will be affected by this.

Osteoclasts weaken brittle bones, making them prone to breaking from even minor stresses like coughing or stooping. The most frequent locations for fractures caused by osteoclasts are the hip, wrist, or spine. Bone is a living tissue that constantly degrades and is replaced.

By increasing their resorptive activity and destroying bone to initiate normal bone repair, the cells known as osteoclasts mediate bone loss in pathologic circumstances. They develop from progenitors of the myeloid/monocyte lineage that circulate in the bloodstream after maturing in the bone marrow.

Osteoblasts create bone; osteocytes mature it, and osteoclasts degrade and reabsorb it.

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Explanation:

The first organism is a Filter Feeder, which filters water to consume phytoplankton (microalgae).

The second organism is a Scraper/Grazer, which consumes leaves and algae and fungi on the leaf surface.

The third organism is a Shredder, which consumes algae on rocks.

The fourth organism is an Invertebrate Predator, which preys on small invertebrates.

The fifth organism is a Vertebrate Predator, which preys on vertebrates and invertebrates.

Answer:

choice A

I hope this helps

Abiotic factors that affect plant growth are light, temperature, water, humidity and nutrition.

Abiotic factors are non-living parts of the environment that have a great influence on living organisms. They determine things like how tall trees grow, where animals and plants are found, and why birds migrate. Important abiotic factors are water, sunlight, oxygen, soil, and temperature.

Abiotic factors affect the ability of organisms to survive and reproduce and also restrict the growth of populations. They also help in determining the types and numbers of organisms that can exist within an environment.

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The electron transporter chain is the sequence of redox reactions that occur in the mitochondrial membrane as electrons flow through different electron transporters resulting in energy production. In the attached files you will find the image with the colored structures.

The electron transporter chain is a series of molecules and proteins located in the internal mitochondrial membrane. It constitutes a series of enzymatic reactions to release and save energy for the organism’s correct functioning.

Along the chain, there are four proteinic complexes in the membrane that contain the electron transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.

Different redox reactions occur to pass electrons from NADH along the chain.

Released energy creates a proton concentration gradient used to synthesize ATP.

Cytochrome oxidase (P450) is one of the enzymes involved in this electron transport, which ends in producing energy. It is the complex IV.

Ion cyanide is a powerful cellular poison that inhibits cellular respiration by binding to the ferric ion of cytochrome oxidase.

Cyanide-ferric binding inactivates the enzyme and blocks electron transference. The chain is interrupted, leading to no oxygen consumption and no ATP production.

Since muscles do not get to have ATP as a source of energy, they weaken.

The interruption of the electron transporter chain produces an anaerobic state that could be culminating.

In the attached files you will find the image with the colored structures. Complex IV is the one affected by cyanide.

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Answer:

The statement that is NOT true is:

A) The fossil record is complete.

This statement is false because the fossil record is not complete. The fossil record is a historical record of life on Earth and provides evidence of the diversity and evolution of life over time. However, the fossil record is incomplete because only a small fraction of all the organisms that have ever lived have been fossilized and discovered. Additionally, the fossil record is biased towards organisms with hard shells or skeletons, which are more likely to be preserved than organisms without such structures. Therefore, while the fossil record provides valuable information, it is not a complete record of all life on Earth.

Answer:

The answer is Chromosomes. Chromosomes are where all of your DNA is stored. Hope this helps!

Explanation:

Answer:

chromosome

Explanation:

long strand of DNA coil and recoil to form dense thread like structure called chromosome

A persuasive technique which the author used to convince the audience that this science fiction novel is high quality is: D. imagery to create ethos​.

A persuasive essay can be defined as a type of essay in which the aim of an author (writer) is to convince the readers (audience) to accept his own point of view, perspective, ideas or opinions.

In English literature, the three modes of persuasion in a rhetorical situation include the following:

Ethos can be defined as the emotions or character of an author (writer) that are expressed so as to persuade an audience to accept a specific point of view, perspective, ideas or opinions.

In this context, we can infer and logically deduce that a persuasive technique which the author used to convince the audience that this science fiction novel is high quality is imagery to create ethos​.

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Answer:

i think its "D"

Explanation:

yw!

Answer:

it is salad dressing

Explanation:

Random distribution is not the same predictable spacing. Hence, the correct answer would be False

In actual fact, random distribution can be said to be the direct opposite of predictable spacing.

For example, when a group of numbers is randomly distributed, each number has an equal chance of being located within the distribution. In predictable spacing, each number would have a predefined probability or an unequal chance of being located.

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Answer:

These findings led to the formation of the modern cell theory, which has three main additions: first, that DNA is passed between cells during cell division; second, that the cells of all organisms within a similar species are mostly the same, both structurally and chemically.

1. In 1683, Leewenhoek discovers bacteria.

2. In 1857, Kolliker describes mitochondria in muscle.

3. Ruska builds the the first transmission electron microscope.

Hope that helped in some way. x

For boosting protein synthesis, timing of protein ingestion is crucial. Consuming protein right after after working out boosts protein synthesis, however waiting even two hours dampens the reaction.

Translation initiation controls, in part, the rate of protein synthesis by interacting with a 40S ribosomal subunit to bind the initiator tRNA (met-tRNAi) and messenger RNA (mRNA). Protein synthesis can become constrained by the met-tRNAi or mRNA binding steps, respectively.

The crucial cell organelles involved in protein synthesis are called ribosomes. The proper operation of the cell depends on proteins. Proteins and RNA found in ribosomes assist in translating genetic code into proteins. The two subunits of ribosomes are smaller and larger subunits.

In conclusion, human basal fractional protein synthesis rates for muscle, tendon, bone, cartilage, ligament, and menisci range from 0.02 to 0.13% per hour.

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The substance that is a matter in its gas form is water vapor (option D).

Matter refers to anything that has mass and occupies space. Matter is the basic structural component of the universe.

Matter is virtually everything around us and can exist in three states as follows:

Water vapor is an example of gaseous material, hence, can be said to be in gaseous form among the options.

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Plant tissues are divided into three basic categories:

• Epidermis- the one found in the outside of the plant

• Vascular-the one that transports water and nutrients

• Ground - The one that makes photosynthesis and stores the nutrients.

In the options, the right one would be D, dermal, because epithelial is animal tissue.

Answer:

i dont know

Explanation:

i really dont know im just a 12 year old kid struggling with math

The red flags or warning signs to look out for when evaluating nutrition claims are:

Nutrition claims can be misleading or inaccurate. Be alert to red flags for misleading claims "Miraculous" or "magic" claims: A product or diet is described as a miracle cure or a magic solution for various health issues.

"One-size-fits-all" approach: Claim that a diet or product is suitable for everyone despite individual differences. Nutrition needs vary. Be wary of universal solutions claims.

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Answer:

it would be C, since an abiotic factor is a non-living thing that helps shape the ecosystem.

Explanation:

If you look at A it lists flowers, which are alive. If you look at B it lists bacteria, which is alive. C doesn't list anything thats alive. D lists insects, which are alive.

Answer:

c is the ans

Explanation:

Abiotic factors include water, sunlight, oxygen, soil and temperature.

Answer:

Unicellular organisms

Answer:

Explanation: Melanocytes are melanin-producing cells derived from immature melanocytes or the so-called melanoblasts, which migrate from the neural crest during embryogenesis. Follicular melanocytes show cyclical activation, and “melanogenesis” (to produce melanin) is coupled with anagen in so-called anagen-coupled melanogenesis.

Answer:

A. Specialized

Explanation:

Melanocyte, specialized skin cell that produces the protective skin-darkening pigment melanin. Birds and mammals possess these pigment cells, which are found mainly in the epidermis, though they occur elsewhere

e.g., in the matrix of the hair.

The chemical containing a carbon-carbon double bond from the given options is B. C2H4. A carbon-carbon double bond is a chemical bond between two carbon atoms in which two pairs of electrons are shared.

A double bond is a chemical bond in which two pairs of electrons are shared between two atoms, resulting in a shorter and stronger bond than a single bond.C2H6 is ethane, which contains only single bonds, C2H2 is acetylene, which contains a triple bond, while C2H4 is ethene, which contains a double bond. Therefore, the correct answer to this question is B. C2H4 contains a carbon-carbon double bond. Option B is correct.

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Answer:

alcohol

Explanation:

it has only bad effects on the person who drinks it

Answer:

The last two points are true

Explanation:

Mutations are harmful and beneficial but can also be neutral

Mutations do cause a variation of given poulation

Answer:

south

Explanation:

Striped bass will tolerate water Temps in the mid 40s and are one of the last species to migrate south to their winter grounds

Answer:

Striped Bass migrate south in the winter.

Explanation:

In E. coli, a cluster of three genes called the lac operon produce enzymes that break apart lactose. To the side of the genes is a region called the promoter, where RNA polymerase binds, and another region called the operator, where the lac repressor binds.

The lac operon is a set of genes that are responsible for the metabolism of lactose in E. coli. The promoter is a DNA sequence that is recognized by RNA polymerase, and is where transcription of the lac operon begins. The operator is a DNA sequence that is recognized by the lac repressor protein, and is where the lac repressor binds to prevent transcription of the lac operon when lactose is not present.
When lactose is present, it binds to the lac repressor, causing it to release from the operator and allowing RNA polymerase to bind to the promoter and begin transcription of the lac operon. This results in the production of the enzymes needed to break down lactose.

In summary, the lac operon, promoter, and operator are all important components of the regulation of lactose metabolism in E. coli.

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Answer:

The correct answer is -  A. Trade

Explanation:

Darius the emperor of the Persian empire was the first Persian emperor to use a coin system for goods, services, and even for tax which makes his economy large and developed his empire, and created a new capaital. Darius used a gold minted coin system for trade for the goods and services and salaries to the army which made his empire popular and a large economy. His economy was a trade economy as coins were used for the different type of goods, foods and services.

Answer:

A common feature in mRNAs that allow extraction from the cell is the 5' cap region which has a Guanine nucleotide attached to the mRNA in an atypical five prime to five prime triphosphate linkage.

Explanation:

The 5' cap structure serves to protect the mRNA against damage from RNA phages and an extraction protocol an be used to isolate the mRNAs from the cells. Reagents such as Dichloromethane, sodium hydroxide and diethyl ether in aqueous solution helps separate the organic layer, a silica-gel column can be used to further isolate the mRNAs

Answer:

Removal of old trees is beneficial for forest health because they are less immune to pathogens and diseases. Besides, clear-cuts allow more sunlight for younger trees that do not tolerate shade. As a result, saplings grow in even-aged stands

Answer:

C

Explanation:

A. Since

B. Because

C. Although

D. For example

Zebra mussels have been known to have a lifespan of six or seven years in the past but recent discoveries have shown that their average lifespan now ranges between one to two years. Hence, the correct word to fill in the gap would be 'Although'.

The correct option is C