Mr. Adams asked his students to write the chemical symbol for the element zinc. He wrote the students’ answers on the whiteboard. Which answer is correct?
A) zn
B) Zn
C) ZN
D) zN

Answers

Answer 1
The answer is b. The second letter (if there is one) is always written as lowercase
Answer 2
The correct option of the four would be letter B. Zn.

Related Questions

The name dinitrogen tetroxide tells you that this compound contains

Answers

2 nitrogen and 4 oxygen

The two main processes by which plant cells absorb,release, and use energy are

Answers

The two main processes by which plant cells absorb, release, and use energy are:

Photosynthesis and Respiration

Hope this helps!! 

Answer:

The answer are:

- Respiration.

- Photosynthesis.

Explanation:

Respiration allows plants to produce the necessary energy to perform their vital functions. Respiration of plants requires an exchange of gases between the plant and the environment, since when breathing, plants take oxygen from the environment and expel carbon dioxide (CO2) to the environment. Photosynthesis is a process that plants carry out to manufacture their own food from various elements that they find in their environment, such as sunlight, carbon dioxide and water, where inorganic materials become organic. This process serves for the development and growth of the plant.

Which pair of molecules are broken down by the cell to release energy?
a
ADP and carbon dioxide
b
ADP and glucose
c
ATP and glucose
d
ATP and carbon dioxide

Answers

C. ATP and Glucose
Hope this helps!

The pair of molecules that are broken down by the cell to release energy is known as ATP and glucose. Thus, the correct option for this question is C.

Which process is known for this mechanism?

The process that is known for this liberation of energy by the breaking down of molecules of ATP and glucose is known as Cellular respiration.

Cellular respiration may be characterized as a type of chemical process through which oxygen is significantly utilized in order to make energy from carbohydrates such as glucose. Glucose and ATP are high-energy compounds that provide immediate energy to the cells in order to facilitate their metabolic functions.

Therefore, the pair of molecules that are broken down by the cell to release energy is known as ATP and glucose. Thus, the correct option for this question is C.

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Sam munches on some almonds. Identify the food group to which almonds belong.
fruits
milk products
meat and beans
vegetables

Answers

The best and most correct answer among the choices provided by your question is the third choice.

The almonds belong to the meat and beans food group.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Correct answer choice is:

C. Meat and beans.

Explanation:  The meat and beans food group comprise of meat, fish, chicken, nuts, seeds, eggs, and dried beans.

_______________ is the difference in inherited traits an organism has from others of the same species

Answers

Variation. This is because when there is variation in the genes while they are genetically swapping, there will be more of a difference since the genes will be a mixture of both parents. 

Answer:

The answer is Variations :)

During the teen years, our self-esteem usually
stay the same
increase
decrease
increases, then decreases rapidly

Answers

Increase, then decrease rapidly
During the teen years, for most, the self-esteem usually increases (gaining confidence) and then decreases rapidly (social media, comparing oneself to others, etc).

the prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle
a. there is no growth phase
b.cell division does not involve division of the cell nucleus
c. DNA does not replicate
d. the cytoplasm and DNA are divided between two new cells.

Answers

I say b.cell division does not involve division of the cell nucleus. A prokaryotic cell does not have a nucleus.

The prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle cell division does not involve the division of the cell nucleus.

What do you mean by Cell cycle?

The cell cycle may be defined as the process a cell goes through each time it divides. The cell cycle consists of a series of steps during which the chromosomes and other cell material double to make two copies.

Prokaryotic cell lacks a nucleus and well-defined cell organelles. Due to the deficient nucleus, a prokaryotic cell never involves the nucleus in its division.

Therefore, the prokaryotic cell cycle is different from the eukaryotic cell cycle because in the prokaryotic cell cycle cell division does not involve the division of the cell nucleus.

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how does a cell react in salt water

Answers

If a higher concentration of salt is placed outside of the cell membrane, the water will leave the cell to bond with it. The loss of water from this movement causes plant cells to shrink and wilt.
If unprotected cells are exposed to salt, or a salt water solution where the concentration of the salt is greater than the concentration in the cellular fluid; the water in the cells will be drawn out, "shrivelling" the cell.

(Re-post)

The hypothesis that continents have moved slowly to their current locations is called

Answers

Continental Drift- The hypothesis that continents have moved slowly to their current locations. 

At one point the continents formed one large continent called Pangea. 

What role do microtubules play during mitosis?
A. microtubules line up chromosomes at the equator of the cell during metaphase
B. microtubules play a role in the disassemble and reassembly of the nuclear membrane
C. microtubules play a role in the formation of the cell plate when plant cells undergo cell division
D. microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase

Answers

microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase.

Answer:

Microtubules play a role in the migration of chromosomes to opposite ends of a dividing cell during anaphase. (Ans. D)

Explanation:

In mitosis after the metaphase stage, anaphase stage occurs where replicated chromosomes are divide and the copied chromosomes migrate to the opposite poles of the cell.

In anaphase stage two phases are occurs:

Anaphase A: In this phase chromosome moves to pole of a dividing cell, this movement is produced by the action occurs in kinetochores and a subclass present in microtubules present in kinetochores are known as kinetochore microtubules.

Anaphase B: In this phase separation of dividing cell poles from each other is occurred. This movement is produced by the action of inter-polar microtubules and astral microtubules.

When NADH passes its electrons into the Electron Transport System, NADH is chemically:

reduced

enzymized

hydrolysed

oxidized

Answers

Answer:

Option D, oxidized

Explanation:

The NADH gets oxidised when it passes its electrons into the Electron Transport System

Oxidization is a process in which one element or compound loses its electron to other chemical element or compound thereby itself getting oxidised and reducing the other one (the one who gains the electron).

Here in the electron transport system, the NADH loses or donates its electron to the Electron Transport System thus chemically it gets oxidized.

Hence, option D is correct

The Calvin cycle happens in the ___________ of the chloroplast.

Answers

Light Independent Reaction:)

What would happen if our atmosphere consisted of pure oxygen?

Answers

Well too much oxygen can kill humans which is one. And 2 If the whole atmosphere was oxygen then things will burn easily.
You mean, biologically? There would be no life, at least not as we know it. Plants need carbon dioxide. I suppose an ecosystem composed entirely of animals might be possible. But animals produce CO2, methane, and a host of other off-gases. So your hypothetical planet would be populated by things very different from us. 

A------------ is each step in a food chain that demonstrates the transfer of energy.

Answers

A trophic level is each step in a food chain that demonstrates the transfer of energy.

A trophic level is any feeding level in a food chain through which energy in the form of food is transferred in an ecosystem. A food chain contains five main trophic levels which are; (i) primary producers (autotrophs; plants and algae), (ii) primary consumers (herbivores), (iii) Secondary consumers (carnivores and omnivores), (iv) Tertiary consumers (carnivores and omnivores) and (v) Apex predators.

Final answer:

A 'trophic level' refers to each step in a food chain, showcasing the energy transfer from one organism to another. The energy transfer starts with the Sun and travels through different organisms, from producers to consumers, providing an understanding of a food chain.

Explanation:

In the field of Biology, each step in a food chain, demonstrating the transfer of energy from one organism to another, is referred to as a trophic level. This energy transfer begins with the Sun, which provides energy to producers like plants. Herbivores, or primary consumers, consume these plants and gain energy.

Then, carnivores, or secondary and tertiary consumers, eat these herbivores and other carnivores to get energy. The energy transfer continues through each trophic level, demonstrating the concept of a food chain.

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write a paragraph explaining the relationship between detritivores and decomposers in the ecosystem.

Answers

That's, easy I would look up the definitions and that should give you the answer

Which of the following best describes the fate of energy in ecosystems?
a. It will ultimately be recycled back into the ecosystem.
b. It flows from secondary consumers to primary consumers.
c. It enters most ecosystems in the form of sunlight.
d. It flows through and is used by ecosystems.

Answers

best describes the fate of energy in ecosystems It flows through and is used by ecosystems.

Answer:

d.

It flows through and is used by ecosystems.

Explanation:

what is the knee cap called

Answers

Answer:

The knee cap is called Patella.

Explanation:The patella is a bone that is flat and circular-triangular in structure It is attached with the femur (thigh bone) and protects and covers the inner surface of the knee.A newly born human baby consist of a petella that is made up of soft cartilage, after attaning four year of age it changes to bone(patella) and develops into bone after 4 year of age.It protects anterior(inner) knee from direct impact.

Result: knee cap is called Patella.

What are CD4+ cells?




A.

HIV treatment cells


B.

immune cells that are destroyed by HIV


C.

an experimental AIDS vaccine


D.

opportunistic cells that destroy the immune system

Answers

The answer is B.  immune cells that are destroyed by HIV 

CD4+ are immune cells (white blood cells) and are an important part of the immune system. Their name comes from the presence of CD4 glycoprotein on their surface. HIV uses CD4 glycoproteins on the surface of CD4+ cells to entry into the cells. The consequence is a reduced number of those cells. Therefore, CD4+ immune cells are destroyed by HIV.


What is the function of an antibody in an antigen-antibody response?









A.

to remove the DNA of the antigen








B.

to enclose the antigen in a protective shell








C.

to help immune cells identify and destroy a pathogen








D.

to ingest and digest the antigen

Answers

C.) to help immune cells identify and destroy a pathogen

Hope this helps!

The large ground finch obtains food by cracking seeds. What is its short, strong beak an example of?

Answers

Final answer:

The large ground finch's short, strong beak is an adaptation resulting from natural selection and adaptive radiation, allowing it to crack hard seeds effectively.

Explanation:

The short, strong beak of the large ground finch Geospiza magnirostris is an example of adaptive radiation and natural selection. Through processes described by Charles Darwin, finches on the Galápagos Islands have adapted their beaks over generations to exploit different food sources effectively. For the large ground finch, its beak has evolved to crack open hard seeds, making it thicker and stronger compared to finches that eat other types of food, like insects or nectar.

Observations by researchers such as Peter and Rosemary Grant provide evidence for this evolutionary change. They reported that during a drought, finches with larger beaks could eat more types of seeds, and hence were more likely to survive. Their offspring also tended to have larger beaks, showing evolution by natural selection.

which of the following is an organic molecule? A. LiF B. C3H8 C.SO2 D.H2O

Answers

I believe the answer is B. C3H8

Answer:

C3H8

Explanation:

The production of four haploid gametes from one mother cell is completed during

Answers

This is a product of meiosis

Answer:anaphase of meiosis I

Explanation:

If an area has all the wolves that it can support, the wolf population has reached its ______?

Answers

The wolf population  in that area has reached its carrying capacity. 

If an area has all the wolves that it can support, the wolf population has reached its carrying capacity.

Carrying capacity refers to the maximum number of individuals that a population has in a given area.

Carrying capacity depends on different types of limiting factors such as food availability.

Limiting factors can be biotic (organisms) and abiotic (non-living part) factors.

In conclusion, if an area has all the wolves that it can support, the wolf population has reached its carrying capacity.

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Which organelle supplies the cell with energy?
a. ribosome
b. cytoplasm
c. nucleus
d. mitochondrion?

Answers

Answer: Mitochondria.

Explanation:

Mitochondria is a double membrane bound organelle found in the cytoplasm of the cell. The main function of mitochondria is to produce energy currency ATP (adenosine triphosphate) which is used by every cell of the body to perform metabolic activities.

The energy production takes place by the process known as cellular respiration in the presence of oxygen by the breakdown of glucose.

Final answer:

The mitochondrion is the part of the cell that supplies energy. It is often referred to as the 'powerhouse of the cell' as it turns glucose into ATP, the cell's energy-carrying molecule via cellular respiration.

Explanation:

The organelle that supplies the cell with energy is the mitochondrion. Among your options, ribosome is responsible for the synthesis of proteins, the cytoplasm hosts various cell processes and the nucleus contains the cell's genetic material. However, it's the mitochondrion, often described as the powerhouse of the cell, that provides the energy. It does this by breaking down glucose into ATP (adenosine triphosphate) through a process called cellular respiration. ATP is the molecule that carries energy within cells and is vital for cell functions.

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Which plant cell organelle uses light energy to produce sugar?
A)
chloroplast
B)
mitochondria
C)
nucleus
D)
ribosome

Answers

A. Chloroplast is the answer
That would be, A) chloroplast 

Muscles are attached to bones by _____.
marrow
tendons
ligaments
skin

Answers

The answer to your question is Tendons.

Tendons! Hope this helps :)

Quartz is a rock-forming mineral.

True

False

Answers

The answer to this question is True

Pure water is neutral. What is the appropriate justification for this? A. Water has equal H+ and OH- ions, making its pH 7, which is considered a neutral pH. B. Water has more H+ than OH- ions, making its pH 5, which is considered a neutral pH. C. Water has more OH- than H+ ions, making its pH 8, which is considered a neutral pH.

Answers

The correct solution for this is explained the first option. Since water has an equivalent amount or number of H ions and OH ions, pure water itself is not slightly acidic nor basic. This equality of ions, causes the pH of water to be around the mid point of the pH scale which goes from 0 - 14, and thus is 7. This is a neutral pH.
Final answer:

Pure water is neutral because it has equal concentrations of H+ and OH- ions, resulting in a pH level of 7, which is considered neutral on the pH scale.

Explanation:

The justification for pure water being neutral is A. Water has equal concentrations of H+ and OH- ions, which results in a pH level of 7. The pH scale ranges from 0 to 14, with 7 being considered neutral. Lower than 7 is acidic and higher than 7 is basic or alkaline. Therefore, since water has a pH of 7, it's considered neutral.

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Which of the following is NOT true about ATP?


glucose breaks down into ATP without any initial energy input. (It just spontaneously happens)


Energy is stored in the bonds of the phosphate group


cells make and use ATP


ferns, slime molds, dogs, and fish all use ATP for energy in the cells

Answers

A option i.e; glucose breaks down into ATP without any initial energy input. (It just spontaneously happens) does not make sense to make while all other are correct. So, the best option will be the A. because A option is not true about ATP.

Trichodesmium is a nitrogen-fixing cyanobacteria. Why might this cyanobacteria be important to other organisms in nitrogen-poor waters?
They convert atmospheric nitrogen (N2) to organic compounds including ammonia (NH3).
They convert inorganic nitrogen to ammonia (NH3) in the ocean.
They convert organic nitrogen compounds to into other nitrogen compounds. They convert nitrates from the water into nitrogen gas (N2) that is released into the atmosphere.

Answers

Answer: They convert atmospheric nitrogen (N₂) to organic compounds including ammonia (NH₃).

Trichodesmium is cyanobacteria which converts atmospheric nitrogen into ammonia which is then used by other organisms present in the nitrogen poor water. They are found in the nutrient poor tropical and sub tropical ocean waters .They account for approximately half of the nitrogen fixation in marine system all over the world.



Final answer:

Trichodesmium is important to other organisms in nitrogen-poor waters because it converts atmospheric nitrogen into ammonia, providing an essential nutrient that supports marine life and maintains the nitrogen cycle in these regions.

Explanation:

Trichodesmium is a nitrogen-fixing cyanobacteria that plays a critical role in marine ecosystems, particularly in nitrogen-poor waters. As a diazotroph, this colonial cyanobacteria can convert atmospheric nitrogen (N₂), which is abundant but unusable by most organisms, into ammonia (NH₃), a form of nitrogen that is readily available for use by plants and phytoplankton. This process is crucial for supporting life in regions of the ocean where inorganic sources of nitrogen are scarce, as it helps maintain the nitrogen cycle and supports the base of the food web.

In nitrogen-poor waters, organisms depend on nitrogen fixers like Trichodesmium to contribute to the primary productivity of the ecosystem. The fixed nitrogen provided by Trichodesmium is essential for the synthesis of amino acids, nucleic acids, and other vital organic compounds within marine organisms. Therefore, without such diazotrophic cyanobacteria, many marine ecosystems would struggle to thrive due to the lack of accessible nitrogen.

Hence, the correct answer is they convert atmospheric nitrogen (N2) to organic compounds including ammonia (NH3).

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___________ is the attitude an author expresses through words. Diction Tone Imagery Mood What is 3r+n^(2)-r+5-2n+2 simplified Explain why significant figures represent the precision of a measurement and not its accuracy. Which of the following best explains how water is able to dissolve ionic substances?AnswerThe positive and negative charges of the water molecule pull on the negative and positive ends of the ionic molecule to break them apart.The strong hydrogen bond on water attracts the positive end of the ionic molecule and breaks the ionic bond.The water molecule shares its electrons in a covalent bond with the positive end of the ionic molecule to break the ionic bond.Water acts as a proton donor for the negative end of the ionic molecule to attract the anion and form a new ionic molecule. ...? how does a free body diagram tell you about the net force of an object what is the impact of human and sex trafficking on the individual, family , and society circumference of a circle with a radius of 5 inches A company manufacturers and sells x electric drills per month. The monthly cost and price-demand equations areC(x)=64000+60x, p=190x/30, 0x5000.a) production level at max revenue = 2850b) price to max profit = $125c) Suppose that a 5 dollar per drill tax is imposed. Determine the number of drills that should be produced and sold in order to maximize profit under these new circumstances. ??? 6. How is the introduction, or beginning, of a narrative different from an informational/nonfiction article? What is 36000 divided by 11 using long division Evaluate the expression when y = 4. 5 + y + 8 Peru is south of Colombia and Ecuadortrue or false The indirect financial and nonfinancial payments employees receive for continuing their employment with a company are called ________. What is the name of the gay american playwright/performance artist whose funding from the nea was revoked? Eric and Roberto are leaving the school gym and will be meeting again for lunch. How should Eric address Roberto as he leaves? help please!What percent of $6.50 is $2.60? Identify the one ILLOGICAL comparisons among the following examplesA) we wondered if parakeets were more popular as pets than parrots.B) Tim's parrot learned to speak more quickly than Mr. Riley's.C) A parrot's father are more colorful than a parakeet.D) this pet store is said to be better than the one across town. how many meters are the in 1 kilometers ???:( A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/C. Using the information below, determine the final temperature of the calorimeter if the initial temperature is 25.0C. The molar mass of ethanol is 46.07 g/mol. delta H rxn = -1235C2H5OH + 3O2 -> 2CO2 +3H2O A sum of money is invested at 12% compounded quarterly. About how long will it take for the amount of money to double?Compound interest formula: V(T)=P(1+r/n)^ntt = years since initial depositn = number of times compounded per yearr = annual interest rate (as a decimal)P = initial (principal) investmentV(t) = value of investment after t yearsp.S: Please explain, I have a couple problems like this so having an example to go off of would be nice. :) x Thanks