Which mineral scratches Dolomite and is scratched by Olivine?
1.Galena
2.Quartz
3.Potassium Feldspar
4.Muscovite Mica
Please answer!! 10 points!!

Answer:

B) crab is the correct answer

Explanation:

i got it right on usatestprep! hope this helped

From a classification standpoint, the crab organism is least like the other three. This is because all the given organisms are either amphibians or reptiles, but crabs are crustaceans.

Classification may be defined as an ordered set of related categories used to group data according to its similarities.

Crabs are crustaceans which are semi-aquatic creatures that have an exoskeleton, but alligators, frogs, and whales belong either to reptiles or amphibians.

Therefore, from a classification standpoint, the crab organism is least like the other three.

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Answer:

The ANSWER is D. All of these

Explanation:

I just took the test and got it right!!!!! I HOPE THAT THIS HELPS YOU OUT A LITTLE!!!!!

Answer: D

Explanation:

The type of lens that would help someone with one of these eye conditions would be, concave lenses would help someone who is nearsighted because the lenses make objects look smaller and closer.

The type of lens that would help someone with one of these eye conditions would be, concave lenses would help someone who is nearsighted because the lenses make objects look smaller and closer.

Nearsightedness or myopia is a condition in which a person can see the nearby objects clearly but is unable to see the objects present at a farther distance clearly.

It is usually caused due to elongation of the eyeball or when the lens becomes too curved.

It can be corrected by using a concave or diverging lens of appropriate power.

Thus, concave lenses would help someone who is nearsighted because the lenses make objects look smaller and closer.

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Answer:

Adaptation is the process of changing form or habits for survival, while adapting is the process of doing such a thing.

Explanation:

Answer:

Explanation:

Adaptation is a process of changes that occur in an organism like in morphology, physiology and genetically which enable it to survive in harsh environmental conditions. This occurs in due course of evolution and natural selection.

When organism adapt according to the surrounding envoronment this can be said that the organism is adapting.

Well there's Water, Earth, Fire, and Air. Not quite sure how this would be a school question. But here it is.

Answer:

Exosmosis

Explanation:

Osmosis is the process of movement of water down the concentration gradient across a semi permeable membrane. Exosmosis is movement of water outside the cell through osmosis. Here, the water movement is shown to occur from the region of its higher concentration (inside the cell) to that of lower concentration (outside the cell). Plasma membrane serves as semi permeable membrane. So, the process is called as "exosmosis" with respect to cell.

The process where water flows out of a cell when the water concentration inside is higher than outside is called osmosis, a type of passive transport. This movement of water occurs through a semi-permeable membrane and is facilitated by proteins called aquaporins. It aims to balance water concentration inside and outside the cell.

The method of molecular transport you've described, where water flows out of a cell when the water concentration inside it is higher than the water concentration outside, is known as osmosis. This process is a type of passive transport as it doesn't require any energy, instead, it relies on the natural tendency of water to move from regions of higher concentration to areas of lower concentration, via a semi-permeable membrane, in order to achieve balance.

This transportation is facilitated by aquaporins, which are proteins that form water channels in the cell membrane, enabling water to move more easily. Cells often expose themselves to an isotonic environment – one where the concentration of solutes is equal both inside and outside the cells, which keeps the concentration of water molecules the same as well and helps cells maintain their normal shape and function.

But when cells are placed in a hypertonic solution – one where the concentration of solutes is higher outside the cell compared to inside, water moves out of the cell to balance the concentrations, causing the cell to shrink, which is known as plasmolysis.

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Answer:

The correct answer to the question above is letter c. DNA is a macromolecule.

DNA and RNA re the macromolecule which are made up of nucleic acids.

Nucleic acids are macromolecule composed  of nucleotides, which are the monomers of three components :

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To make a 25% sugar syrup, we need to determine the amount of water required to dissolve the sugar.

We know that we have 50 grams of sugar, and we want the sugar to be 25% of the total mixture. This means that the remaining 75% will be water.

Let's set up an equation to find the amount of water needed:

Sugar + Water = Total Mixture

50g + Water = Total Mixture

Since we want the sugar to be 25% of the total mixture, we can express it as a decimal fraction:

25% = 0.25

Now we can rewrite the equation as:

50g + 0.25(Total Mixture) = Total Mixture

Next, we want to solve for the amount of water needed. To do this, we'll isolate the Water term:

0.25(Total Mixture) = Total Mixture - 50g

0.25(Total Mixture) - Total Mixture = -50g

0.25(Total Mixture) - 1(Total Mixture) = -50g

-0.75(Total Mixture) = -50g

Dividing both sides by -0.75:

Total Mixture = -50g / -0.75

Total Mixture ≈ 66.67g

Now, to find the amount of water needed, we'll subtract the weight of the sugar from the total mixture:

Water = Total Mixture - Sugar

Water = 66.67g - 50g

Water ≈ 16.67g

Therefore, to make a 25% sugar syrup with 50g of sugar, you would need approximately 16.67g of water.  

Answer

The answer is C.

Intrinsic controls, also known as local controls, are mechanisms that regulate a physiological process from within the organ or tissue itself. They help maintain homeostasis and are influenced by factors like chemical concentrations and temperature.

Intrinsic controls, also known as local controls, refer to the mechanisms that regulate a physiological process from within the organ or tissue itself. These controls help maintain homeostasis and ensure proper functioning of the organ or tissue. They can include factors such as local chemical concentrations, temperature, pH, and pressure.

For example, in the context of blood flow, intrinsic controls can regulate the diameter of blood vessels in response to changes in local oxygen or nutrient levels. These controls help to direct blood flow to areas that need it the most.

Therefore, the correct answer is C) local.

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1:

At sea level, the air that surrounds us presses down on our bodies at 14.5 pounds per square inch. You don't feel it because the fluids in your body are pushing outward with the same force.

Dive down into the ocean even a few feet, though, and a noticeable change occurs. You can feel an increase of pressure on your eardrums. This is due to an increase in hydrostatic pressure, the force per unit area exerted by a liquid on an object. The deeper you go under the sea, the greater the pressure of the water pushing down on you. For every 33 feet (10.06 meters) you go down, the pressure increases by 14.5 psi.

2:

Two layers of water result would be; Mixed layer and deep water, Also the Thermocline separates them.

Description

A thermocline is a thin but distinct layer in a large body of fluid in which temperature changes more rapidly with depth than it does in the layers above or below. In the ocean, the thermocline divides the upper mixed layer from the calm deep water below.

3:

(A)

The deeper the waters, the lower the temperatures since. The only reason this works is since sunlight isn’t able to penetrate to deeper water due to the fact it gets attenuated bc of diffusion and scattering.

(B)

Temperature of water are lower with increasing attitude due to the fact that the differential angle in which the sunlight usually would hit, would hit earth at a different angle.

4:

(A)

It would increase salinity since, Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean.

(B)

In cold, polar regions, changes in salinity affect ocean density more than changes in temperature. When salt is ejected into the ocean as sea ice forms, the water's salinity increases. Because salt water is heavier, the density of the water increases and the water sinks.

(C and D)

Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.

5:

(A)

Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume that results in a decrease in density. ... Hot water is less dense and will float on room-temperature water. Cold water is more dense and will sink in room-temperature water.

(B)

The water molecules pack together tighter as pressure increases -the pressure increase with depth, due to the weight of the water above, and causes the greatest density changes in seawater with depth (greater than the density changes due to temperature and salinity changes).

(C)

The density decreases

(D)

Increasing salinity also increases the density of sea water. Less dense water floats on top of more dense water. Given two layers of water with the same salinity, the warmer water will float on top of the colder water. ... Temperature has a greater effect on the density of water than salinity does.

Increases, increases, remians constant, and decreaesExplanation:

Answer:

It is actually 3 stages,  three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate.

Explanation:

Answer: humans are extremly over populated anyway but if we increase people even more our pollution numbers will go through the roof, global warming will get super bad even worse than it is right now. Our kind will probaly evtually killall of our forests and we will over build areas causing plant and animals to die.

I hope this helps a thank and a brainlist would be greatly appreciated :P

Answer:

C. Maximum power point tracking.

Explanation:

A. Direct current: It is also called DC in which  electric current flows consistently in one direction.It is used in batteries and cells.It is not used in solar system .Therefore, it is false.

B. Alternating current : It is also called AC . The AC is used in domestic electricity.The current in which direction of electron is reversed after at regular intervals .It is not used for solar cells.Hence, it is false.

C. Maximum power point tracking:It is also called power point tracking. It is used in   charge control in solar cells.it is a technique which is used to extracting maximum available power from PV  ( photovoltaic cells) solar system.It is a technique that is used to adjust load connected to solar cells and increase their energy output.Therefore, it is true.

D. Electromagnetic induction:It is a process for producing EMF due to change in magnetic field. It is not used in solar system. Therefore, it is false.

Answer:C. Maximum power point tracking.

The correct answer is B.

Answer:

The correct answer will be option B (Making short RNA primers)

Explanation:

Primase is a RNA Polymerase enzyme involved in the replication of DNA in organisms. for e.g- Dna-G (Prokaryotes) or AEP (Archaeo-Eukaryote Primase).

Role of primase in replication

1.Primase enzymes are activated by Helicase and form primosome complex.

2. Primase then synthesizes primers- short RNA molecules from ss-template DNA of 4-15 nucleotides long.

3.These primers are recognised by the enzyme DNA polymerase  which adds and elonagte  by adding nucleotides to the primer.

thus, option B is correct.

Answer:

At the carrying capacity

Answer:

NO

Explanation:

Answer:

No

Explanation:

Only plant cells do

Mitosis and meiosis are the same, because they are both ways of dividing cells and reproducing cells. They are different in many ways, but the main one is that meiosis splits the number of chromosomes in 1/2, while the number of chromosomes remains the same for mitosis.

Answer:

50%

Explanation:

There are only 2 possibilities 2 dominant genes (homozygous) or 1 dominant gene and 1 recessive gene (heterozygous) it's a 2/4 chance for each making it 50/50.

Answer: 50%

Explanation: Homozygous: YY or yy

Heterozygous: Yy

YY, YY

yY, yY

Yy, Yy

yy, yy

As you can see, in both cases it would be 50/50 chances of being either heterozygous or homozygous.

Fission : fission the process where eukaryote cells replicate their DNA and create a new organism with a copy of that DNA.

Budding : a new organism develops from an outgrowth or bud due to cell division. The new organism remains attached as it grows, separating from the parent organism only when it is mature

Fragmentation : an organism is split into fragments. Each of these fragments develop into matured, fully grown individuals that are identical to their parents.

Hope this helps , Danielle xo

Fission is defined as the splitting of a single cell organism into two or more separate daughter cells.

Binary fission is of two kinds: Binary fission and multiple fission. Binary fission is most common form of reproduction in that occurs in some single-celled eukaryotes and prokaryotes. For example, amoeba.

Multiple fission is defined as when the organism divides equally into more than two different parts and they develop to form New individuals.

Budding is defined as the formation of an outgrowth (bud) from an organism. Bacteria, yeast, flatworms are the examples of budding.

Fragmentation is a type of cloning where one organism is divided into minor fragments. Once divided, the fragments develop into individual ones which are fully grown.

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Creating awareness will always be a solution , but doing something about it creates improvement to the global issue . You can create biodegradable plastics so whenever the biodegradable plastic hits the ocean , the object can become food for the ocean animals instead of harming them ......some McDonald’s are now changing their straws (biodegradable straws ) so change is happening slowly we just need awareness

Answer:

The answer is Sedimentary

Explanation:

With time and pressure, these sediments, such as sand, plant debris, or ash, become compressed into rock. Therefore, fossils are found in sedimentary rock, like sandstone, shale, limestone and coal

Answer:

8.

Explanation:

Oxy is the 8th element in the periodic table

take the atomic mass away from the atomic number 16-8=8

The research on eDNA initiated in microbiology, recognizing that culture-based methods grossly misrepresent the microbial diversity in nature. Subsequently, as a method to assess the diversity of macro-organismal communities, eDNA was first analyzed in sediments, revealing DNA from extinct and extant animals and plants, but has since been obtained from various terrestrial and aquatic environmental samples. Results from eDNA approaches have provided valuable insights to the study of ancient environments and proven useful for monitoring contemporary biodiversity in terrestrial and aquatic ecosystems.

Answer:

forms clouds, is the change from a gas into a liquid

I hope i was able to help you (:

Answer: The answer is 1, and 4

Answer:

1 Sun/ Solar

2- Allowing precipitation to fall

3- The water in the ocean gets enough sun one day and it evaporates and forms into a cloud. The cloud then relocates over the nearby land. The cloud becomes too dense with water vapor and gravity carries the water down as precipitation, most likely rain or snow. It then flows through little streams and back into the ocean to restart the process.

Answer:

1.  In my point of view, I think the energy that causes evaporation comes from the sun. The sun is what heats the water and makes tiny vapors evaporate into the air which forms clouds.

2.  Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. It basically pulls water and precipitation downhill until it connects to a river which eventually runs into an ocean. It allows precipitation to fall.

3.  The water in the ocean gets enough sun one day and it evaporates and forms into a cloud. The cloud then relocates over the nearby land. The cloud becomes too dense with water vapor and gravity carries the water down as precipitation, most likely rain or snow. It then flows through little streams and back into the ocean to restart the process.

Hope this helped!

Answer:

You did not provide a figure, but you can refer to the attached picture and match it up with your figure.

The heart has 4 chambers. It has the left and right Atrium (plural is atria) and the left and right ventricle.

The blood FROM the body going towards the heart is deoxygenated. It empties into the RIGHT ATRIUM. From there, it goes through the tricuspid valve then empties into the RIGHT VENTRICLE. The right ventricle then pumps the blood up into the pulomonary artery, and goes towads the lungs to be oxygenated. The oxygenated blood then leaves the lungs via the pumonary vein and it empties the blood into the LEFT ATRIUM. From there the blood goes through the bicuspid valve and pours into the LEFT VENTRICLE. The left ventricle pumps the blood up the aorta and from there, it goes to the different parts of the body.

In summary:

BODY ---> RIGHT ATRIUM ---> RIGHT VENTRICLE ---> LEFT ATRIUM ---> LEFT VENTRICLE

Take note though that this is the pathway with regards to ONLY the chambers.

Answer:

Cones is the correct answer because cone is the female reproductive part

Answer:

Option C, Cones

Explanation:

In Gymnosperm,  male microspore and female megaspores are generated in sporangia which are carried by cones/strobili.  

Strobili consists of a short stem with leaves known as sporophyll on which sporangia is found. The sporangia producing the male microspore and female megaspore are found  on separate cones. The male cone is known as staminate cone and the female cone is known as ovulate cone.

Thus, option C is the correct answer

Answer:

[tex]308 N\cdot m[/tex] or 308 J

Explanation:

Work in physics is done when an object is moved due to an applied force. But you need to remember that work is only done if there is movement parallel to the direction of the force applied.

Work can be computed with the formula:

W=Fd

Where:

F = Force

d= distance

So your problem gives you:

F = 22 N (Newtos)

d = 14 m (meters)

All you need to do is plug in the values and multiply:

W = F x d

W = 22N x 14m

W = 308 N-m or 308 J (Joules)

Answer:

Electrons become excited

Explanation:

After photons strike the light-absorbing pigment chlorophyll, electrons within the chlorophyll become increasingly excited. Only after this initial excitation do the electrons begin getting transported into the electron transport chain. Electrons in water molecules get released during photolysis, but only after they first become excited. ATP isn’t transformed into glucose until the light-independent stages of photosynthesis.

After photons strike the light absorbing pigment chlorophyll, the electron in that molecule becomes excited. The correct option is D.

Chlorophyll is the term coined to the green pigment used by plants to produce food throughout the photosynthesis process.

Chloroplasts are plant cell organelles that use photosynthetic energy to revert light energy into fairly stable chemical energy.

They endure life on Earth while doing so. Chloroplasts also perform a variety of metabolic functions for plant cells, such as the metabolism of fats and membrane lipids.

Chlorophyll is excited and emits electrons when it absorbs light. These chlorophylls are discovered in photosynthetic units known as Photosystems I and II.

Each unit has a distinct reaction center containing pigment molecules. These molecules absorb different wavelengths of light and emit electrons.

Thus, the correct option is D.

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