Do you think oxygen turns the penny dark brown all the way through or just on the surface

Answers

Answer 1

Answer:

just on the surface

Explanation:

you can clean it


Related Questions

What does it mean to say that the U.S. Government has a balanced budget?

Answers

Explanation:

A balanced budget occurs when revenues are equal to or greater than total expenses. A budget can be considered balanced after a full year of revenues and expenses have been incurred and recorded.

What is the relationship between the 2 processes cellular respiration and photosynthesis? Use vocabulary words like autotroph, heterotroph and photosynthetic.

Answers

The products of cellular respiration are the reactants of photosynthesis and the products of photosynthesis are the reactants of cellular respiration. Photosynthesis transforms solar energy into chemical energy and cellular respiration transforms chemical energy into USABLE energy currency. (Hope that helps)

12. Compare and Contrast the relationships between the speed of electromagnetic
and mechanical waves as they travel through different mediums. YOU must
write at least 8 sentences.

Answers

Answer:

Compare and Contrast the relationships between the speed of electromagnetic  and mechanical waves as they travel through different mediums is explained below in details.

Explanation:

As per the mechanism, the waves can be distinguished as electromagnetic and mechanical waves. Electromagnetic waves are those fluctuations that have no mechanism to progress whereas mechanical waves demand a mechanism for their communication. Electromagnetic waves progress in a vacuum whereas mechanical waves don't have.

Write two differences between the unicellular and multicellular organisms.
what is a cell membrane

Answers

Answer:

The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid.

Explanation:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions

Answer: The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid.

Explanation:

Cell membrane, also called plasma membrane, thin membrane that surrounds every living cell, delimiting the cell from the environment around it.

Help pls i rlly need it?

Answers

C. The nucleus hope this help you!

Answer:

CELL NUCLEUS!!!

Explanation:

Once the DNA strand unwinds and is modified; it sent through the
nucleus for translation. What stage of translation would most likely
occur at letter A?
A) initiation
B) elongation
C) termination
D) RNA processing

Answers

Answer:

I think it is A.

Explanation:

Sugars can link together to form?
protein
protein

lipids
lipids

amino acids
amino acids

DNA
DNA

starch
starch

Answers

Starch is the answer..

Which statement summarizes the information in the table

Answers

that would be letter C

What evidence would indicate a new material has been produced?

A Soot appears on a fireplace after a fire.

A metal spoon gets hot after coming out of a dishwasher.
.
A The hubcap of a car is bent during an accident.

A wire sags when too much electricity passes through it.

Answers

I think the answer would be soot appears on a fireplace after a fire. I hope this helps you out! Good luck!

Your professor describes an aquatic eukaryote that is single-celled, a primary producer, unable to swim on its own, and is structurally resistant. What organism is most similar to the one described by your professor?

Answers

Answer:

The correct answer is - diatom (protist)

Explanation:

The characteristic described by the professor is most similar to the characteristic of aquatic protist - diatoms. Diatoms are the aquatic protist fall into the eukaryotic type of organisms.

These organisms are single-celled and can not swim on their own. They are a primary producer as they do not depends on others for their food and energy and synthesized themselves.

Can somebody please help me label this map please!!!!

Answers

It seems like this reference picture might help you.

Include captive breeding, laws and treaties, and habitat preservation

Answers

These activities include habitat destruction, poaching, pollution, and the introduction of exotic species. Three successful approaches to protecting biodiversity are captive breeding, laws and treaties, and habitat preservation. The number of different species in an area.

What is one defining feature of a prokaryotic cell?


A.cytoplasm surrounds organelles


B.have a cell wall outside plasma membrane


C.organelles are not membrane-bound


D.membrane-bound organelles

Answers

The distinguishing feature of a prokaryotic cell is that it has no nucleus or internal membranes, so unlike eukaryotic cells they contain no membrane bound organelles. - google

Answer:

B. have a cell wall outside plasma membrane

Explanation:

I love memorizing articles on subjects I enjoy to help answer and solve questions like these, this one is from bio.libretexts.org, and I really hope it can help:

"The Prokaryotic Cell;

They do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. Most prokaryotes have a cell wall outside the plasma membrane."

Have a nice day! :)

what change in a population would you expect to see if a selection pressure was against the traits of the dominant allele?

Answers

The change in population in the given condition would be an increase of true recessive traits in the population and there would be only a few individuals with dominant traits.

In case of selection pressure was against the dominant trait, then individuals of the population who have true recessive alleles would have an advantage over the heterozygous and dominant individuals of the population.

There would be very few individuals carrying its dominant genotype and it may eventually be extinct, however, it would be still dominant. The recessive trait would just become more prominent rather than becoming dominant.

Thus, the number of recessive traits would increase in population, and the number of dominant decrease to numbers.

Learn more about selection pressure:

https://brainly.com/question/18592700

Decrease occur in the population of dominant allele occurs.

Change in a population of dominant allele occurs if a selection pressure was against the traits of the dominant allele because the selection pressure is against the dominant allele that leads to appearance of recessive allele and disappearance of dominant allele. The selection pressure is responsible for the appearance of allele in the offspring so we can conclude that dominant allele is decreases in the population of the future generation.

https://brainly.com/question/18999457

Can you give me an example of an amphibian close to extinction?

Answers

Answer:

frogs or salamanders

this mannitol salt plate was inoculated with an unknown staphylococcus species. what can you conclude about this unknown organisms

Answers

Complete question: Analyzing Mannitol Salt Agar (MSA): An MSA plate was inoculated with an unknown Staphylococcus species. What can you conclude about this unknown organism?

A. It can ferment mannitol.

B. It produces acid during fermentation, leading to a lower pH in the medium.

C. It can tolerate higher salt concentrations.

D. It could be S. aureus.

E. All the above

Answer: The correct option is E ( all of the above)

Explanation:

Culture medium is a growth medium that is used in microbiology which permits the growth of microorganisms. It can be in a gel or liquid form. There are different types of culture medium which includes:

--> Differential medium

--> Selective medium

--> Enriched medium

Mannitol Salt Agar( MSA) is a type of selective culture media that is used in microbiology for the identification and isolation of staphylococcus species from biological samples. A typical MSA includes essential growth factors and trace nutrients such as nitrogen, vitamins, minerals and amino acids essential for growth. The medium contains sodium chloride( salt) with mannitol which is the fermentable carbohydrate source

Staphylococcus aureus organisms are capable of fermenting mannitol, produces acid during fermentation leading to a lower pH in the medium, and can tolerate higher salt concentrations. Therefore the unknown organism is POSITIVE to mannitol salt agar analysis. Thanks and I hope it helps!

Silver (Ag) has 47 protons in each atom. Based on this information, which of the following also describes an atom of silver? A. It has no neutrons. B. It has 47 electrons. C. It has 23 neutrons and 24 electrons. D. It has a total of 94 neutrons and electrons. it science by the way.​

Answers

Answer:

B

Explanation:

It has 47 electrons, as proton number is equal/the same as the electron number (proton number=electron number).

Hope this helps! :)

4) Which of the following human activities is not a major contribution to carbon dioxide in the atmosphere?
1. factories
2. transportation
3. breathing
4. urban sprawl

Answers

Answer:

breathing

Explanation:

Tropical, temperate, and polar describe climate zones due to
A. latitude.
B. rainfall amount.
C. temperature.
D. snowfall amount.

Answers

Answer:

A. Latitude

Different latitudes on Earth receive different amounts of sunlight, and are a key factor in determining a region’s climate.

cell is immersed in a
Plasmolysis occurs when a/n)
solution.
O animal; 3X salt solution
O plant; pure water
O animal; pure water
O plant; 3X salt solution

Answers

Answer:

Plasmolysis occurs when a plant cell is inmersed in a 3X salt solution.

Explanation:

Plasmolysis is a phenomenon only observed in plant cells, and consists of cell dehydration accompanied by separation of the membrane and cell wall when the cell is exposed in a hypertonic environment.

When a plant cell is in a hypertonic solution —such as 3X salt solution— the permeability of its membrane allows water to escape, so the cell dehydrates and reduces its size. The cell wall is rigid and maintains its shape, but the cell membrane separates from it, which is known as plamolysis.

The other alternative answer combinations are not correct because:

Plamolysis does not occur in animal cells. Pure water does not produce plasmolysis.

Pls help if u know the answer
PLS HELP...


Marley has a vegetable garden in her yard. During a recent storm, heavy rains fall and some of her garden soil is watch away. Which term BEST describes the movement of the soil from one place to another?

Erosion
Runoff
Deposition
Weathering​

Answers

Answer:

runoff

Explanation:

How can you distinguish A from B? In this lab, you will do experiments to identify types of changes. Using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments.

Answers

Answer:

How can you distinguish a physical change from a chemical change?

edge 2021

Answer:

How can you distinguish a physical change from a chemical change?

Explanation:

Edge 2023

What is an equinox and when does it happen?

Answers

An equinox is commonly regarded as the instant of time when the plane (extended indefinitely in all directions) of Earth 's equator passes through the center of the Sun. This occurs twice each year: around 20 March and 23 September.

Answer:

An Equinox is commonly regarded as the instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk. This occurs twice each year, around 20 March and 23 September.  In other words, it is the moment at which the center of the visible Sun is directly above the equator.

Explanation:

The most important factor(s) which limit the number of animals that can live in a biome is/are:

Answers


Most organisms are adapted to live within a particular range of temperatures and will not survive at temperatures too far above or below their range. Precipitation limits the organisms that can be found in a biome because all organisms need water, and the bigger the animal, the more water it needs.



Hope this helped! <33

In passive transport, molecules move__ the concentration gradient.

Answers

Answer:

In passive transport, molecules move with the concentraction gradient.

Explanation:

If molecules moved against it would be active transport.

Passive transportation has been defined as the mode of molecule movement across the semi-permeable membrane. "In passive transport, molecules move down the concentration gradient."

What is passive transport?

Passive transport has been the mode of movement of the ions and molecules from the exterior and interior of the cell through the plasma membrane. This mode of transportation has been characterized by the movement of the ions from the region of a higher electrochemical gradient.

The ions tend to move towards the region that lacks the electrochemical gradient, hence it is a movement in the direction of the lower concentration. The solute particles do not external source of energy to drive the movement from higher concentration areas.

It is a type of diffusion that uses the law of Thermodynamics to move the ions up and down the cell concentration. The movement of the oxygen gas in the body cells is an example of passive transportation.

Therefore, the ions move down the concentration gradient in the passive transport.

Learn more about passive transport, here:

https://brainly.com/question/13542102

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Gregory Mendel work was different from that of other researchers working in inheritances in his day because he alone

Answers

Answer:

Most scientists believed that heredity material blended together in offspring, however, Mendel did not. he believed that an organism inherits one gene from each parent and that some alleles are dominant over others. This would mean that they would show up in the phenotype of an organism.

Explanation:

Hope this helps :)

Answer: Gregory wrote a research paper for his English class. His first step was to choose a topic Then he found some background information about his topic. Next, he began looking for relevant sources. He then evaluated them to check their reliability.

Gregory began to write his paper. He used evidence from his research to back up his arguments. Finally, he cited the sources he used.

Explanation:

source: trust me bro

Can I please get the answer ?

Answers

Answer:

The answer is A. water, carbon dioxide, and energy.

Explanation:

when a plant is limp ot has lost its water tehough ______if you water ir ir should perk up

Answers

Answer:

A Pothos is what the plant is called


What do you think is happening in this picture?

Answers

Answer:

the dot are tranporting to the other section Explanation:need a bit mor

info tho

Disadvantages of a light microscope against electron microscope

Answers

Disadvantages. Maximum magnification of 1500x. Specimen may be disfigured during preparation to be viewed under the microscope. The resolving power is 1 nm for biological specimens. Only has a resolution of 0.2 μm - which is relatively poor in comparison to other microscopes. Meanwhile, electron microscopes have a much higher range of magnification (can detect smaller structures), and have a much higher resolution (can provide clearer and more detailed images).

electron microscope have a range of disadvantages as well:

. they are extremely expensive

. sample preparation is often much more elaborate......

. the sample must be completely dry.

. it is not possible to observe moving specimens ( the are dead)

. it is not possible to observe colour.

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