ARTH SCIENCE: Section 14-7 Astronomy - Quarter 1
Ch 25.1 & 25.2 quick check
Question 10
What will be the final stage in the sun's life cycle?
a
black dwarf
b
planetary nebula
Review Answers
Back

Answers

Answer 1

Answer:

Black Dwarf

Explanation:

i hope this helps


Related Questions

What is the importance of vaccination

Answers

Answer:

A vaccine activates our immune system without making us sick. Many dangerous infectious diseases can be prevented in this simple and effective way. A vaccine activates our immune system without making us sick.

Answer:

Does not allow that appropriate disease to enter our body

Explanation:

Vaccination helps our body immune system to be strong and very fit to fight or not to enter our body

Please I need the the experimental group, the control group, independent variable, dependent variable and controlled variable and a summarized version of the experiment by today please!

“Chad is attempting to determine how different colors of light
affect plant growth. Chad places one spider plant in a cabinet
under a blue light and one spider plant in a cabinet under a red
light. Chad knows he needs to compare his plants to a plant
grown under white light so he places a third spider plant on the
window sill where the sun shines. All plants are the same age
and are given equal amounts of light time, plant food and water.
At the end of a two week period, Chad will measure the height of
each plant.”

Answers

Answer:

can you please answer my question please

Explanation:

pleaseee

Why does a cell use less energy to move things when they are small?

Answers

Because they don’t have to move quickly because it’s a smaller space.

Explanation:

When a cell moves quickly they are trying to take up space. So if the cell is moving in a small space then they would use less energy

Please help me ASAP real quick n easy

Answers

Answer:

Carbon monoxide gas.

Explanation:

The others are direct sources of groundwater pollution as the go directly on the ground. Hope this helps!

1. Briefly describe what is happening at each phase of
meiosis.

Answers

Answer:

Chromosomes condense. Metaphase II: Chromosomes line up at the metaphase plate. Anaphase II: Sister chromatids separate to opposite ends of the cell. Telophase II: Newly forming gametes are haploid, and each chromosome now has just one chromatid.

Which two organisms are able to form a symbiotic relationship with each other

Answers

Answer:

hi

Explanation:

Key terms

TermMeaningSymbiosisInterspecific interaction in which two species live together in a long-term, intimate associationMutualismA symbiotic relationship between two species in which both partners benefitCommensalismA symbiotic relationship between two species in which one benefits and the other is unaffected

Help! The is a question about enzymes.

Answers

ans is no 3

Explanation:

What is the function of the macromolecule nucleotide?
A.SHRED STC
B.Immediate energy
C.Stored enery
D.Body instructions

Answers

Answer:

I believe that the answer is D.

Explanation:

A) is wrong

B) is carbohydrates

C) is lipids

D) is nucleic acids and the monomer of nucleic acids are nucleotides.

What is the function of a protein?

Answers

Explanation:

Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place, and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.

Hope this helps!! :)

A protein helps repair and build your body’s tissues! Also providing your body with a structural frame work!

Describe what needs to occur in order for a metamorphic rock to form.

If your not gonna put a HELPFUL ANSWER, please do not answer, thanks.

Answers

Answer:

Any sort of prexisting rock whether sedimentary, igneous, or even metamorphic rock must change under extreme conditions like extreme heat or pressure.

Explanation:

An igneous rock is a rock that has been created via cooling of magma.

A sedimentary rock is formed from sediments, whether they be natural like seashells, or other pieces of older rocks that have worn away. usually formed under pressure.

A metamorphic rock is a rock that's changed, because it was put under extreme pressure or exposed to extreme heat.

Think of the part morphic in the word metamorphic-it literally means that it morphed or that it changed dramatically.

There are two ways for a rock to become metamorphic under extreme pressure or extreme heat. and there are two types of metamorphic rocks, contact metamorphism and regional metamorphism.

Those mean pretty much exactly what they say.

If you have any more questions, ask, but i think I covered the most important parts of the answer.

best of luck

I NEED HELP ASAP
12. If I were a drop of water and I entered the cycle in the transpiration
stage, where would I go next?

Answers

Answer:

Condensation

Explanation:

Transpiration is when the plants give off water. THe water is like evaporating but from plants. It then turns into clouds.

Answer:

Runoff

Explanation:

water pours down leading to runoff, in this process water runs over the surface of earth.

First correct answers get Brainlies. Spam answers get flagged.

New Zealand has a population of 4,326,380 and has an area of 103,736 miles squared while Australia has an area of 2,967,909 miles squared and a population of 21,905,140. Explain how New Zealand can have a larger population density than Australia even though it has a smaller total population.

Answers

The reason they have a higher population density is because they have more people on average in a certain area, because New Zealand is smaller they are given less space to live, this means that more people are crammed together, making the density of people within a square mile higher. When you give less square miles, you reduce the amount you have to divide the population by, which makes the density go up.

( In case you wanted the calculations for the density on New Zealand and Australia, it is about 41 to 42 people a square mile in Zealand, and maybe 7 or 8 per square mile in Australia.)

Hope this helps, if not, comment below please!!!

when coal is burned in a power plant for electricity in one city how might this affect a forest many miles away
A. it's could contribute to acid rain falling on the forest
B. it could increase the amount of oxygen available to the forest
C. it could provide electricity for heating the forest
D. it could decrease the amount of carbon dioxide available to the forest

Answers

Answer:

A.

Explanation:

When a power plant is made they all have these pies that come out of the buildings to extract the smoke but what most people don't know is that smoke is put out in the air and is taken to the clouds which mixes with the rain and since it is toxic it eventually leads it to be acid rain the more smog it picks up. Acid rain is very dangerous it burn down a whole forest, so yes, your answer is A.  

Hope this helps :)

When coal is burned in a power plant for electricity in one city, it might significantly affect a forest that is located many miles away by contributing to acid rain falling on the forest. Thus, the correct option for this question is A.

What are the disadvantages of burning coal?

The disadvantages of burning coal are as follows:

It stimulates air pollution. It also increases the level of greenhouse gases in the atmosphere. It is primarily responsible for acid rain. It overall declines the biodiversity of living organisms by making the environment toxic for living.

According to the context of this question, when coal is burning, it deposited a high amount of carbon dioxide in the environment due to which carbonic acid is produced which is fallen on the earth along with precipitation. It causes a severe threat to all forms of living organisms in each ecosystem.

Therefore, the correct option for this question is A.

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Which of the following is not an example of energy transformations in an ecosystem? a. sunlight driving photosynthesis in plants b. herbivores feeding on plants c. predators feeding on herbivores d. none of the above Please select the best answer from the choices provided A B C D

Answers

Answer:

D. None of the above

Explanation:

Energy transformation is the process of transfer and conversion of energy from one species to another. None of the above is not an example of energy transformation. Thus, option D is correct.

What is energy transformation?

Energy transformation is the process in an ecosystem that includes the conversion of energy from one level to another in the food chain or the metabolic reactions.

Photosynthetic reactions under the sun, herbivores feeding on producers, and predators feeding on the primary consumers are examples of energy conversion as it is continuously passing the energy to another species in the ecosystem.

Therefore, none of the above is not an example of energy transformation.

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Where does the salt in oceans come from?
VI
O Glaciers contain salt and melt into the ocean
Pollution from trucks adds salt into the ocean.
O Minerals from the land are washed into the ocean.
O Decomposing fish and plants in the ocean increase salinity.
spy
VI

Answers

Answer:

Minerals from the land are washed into the ocean.

Salt in the ocean comes from the runoffs from the land, So the correct option is C. The minerals from the land are washed into the ocean.

Why are oceans salty?

A large percentage of the earth is covered by water but 97 % of this water is salty and cannot be used. The salt in the ocean is added to by the erosion of rocks.

Rainwater contains dissolved carbon dioxide (CO2) from the surrounding air, which makes the rainwater slightly acidic due to the presence of carbonic acid. Rainwater physically damages the rock, and the acids chemically degrade the rock and transport salt and minerals in the form of ions. These ions are carried to streams and rivers, and eventually to the ocean.

The density of the ocean water is affected by the level of salinity. Higher levels of salinity cause water to be more dense and heavier and sink under less salty, warm water. This also affects ocean currents. In addition, marine life may need to adjust their saltwater intake.

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Will give brainliest to whoever helps me PLEASE

Answers

Answer:

DNA to DNA: A, T, C, G

DNA to RNA: A, U, C, G

Explanation:

Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. In this process, adenine (A) pairs with thymine (T), while cytosine (C) pairs with guanine (G).

Transcription involves copying a gene's DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand. In this strand, adenine (A) pairs with uracil (U) instead of thymine, but thymine (T) still pairs with adenine (A). Cytosine (C) and guanine (G) still pair to each other.

Does this make sense? Feel free to comment any other questions!! If this was a good explanation, please consider giving me a good rating and/or brainliest!!

An agricultural biologist was evaluating two newly developed varieties of wheat as potential crops. In an experiment, seedlings were germinated on moist paper towels at 20ºC for 48 hours. Oxygen consumption of the two-day-old seedlings was measured at different temperatures. The data are shown in the graph below. In a second experiment, variety A seedlings at both temperatures were treated with a chemical that prevents NADH from being oxidized to NAD+. Predict the most likely effect of the chemical on metabolism and oxygen consumption of the treated seedlings. Explain your prediction.

Answers

Answer:

The definition is listed in the clarification segment below, and according to the present circumstances.

Explanation:

It undergoes different morphological as well as biochemical modifications mostly during germination. Product contains nutrients and even some hydrolases such as energy, carbohydrates. Owing to the availability of phytic compounds, the seed coat seems to be very durable in nature. Hydrolytic enzymes launch their function by consuming oxygen throughout order to remove this hard coating. In several other processes, including the electron transport system as well as the Kreb process, oxygen also becomes necessary.

The initial phase of germinating seeds requires anaerobic environments where even the enzymes dehydrogenase can function. The subsequent dehydrogenase enzyme brings the electron throughout the electron transport system from either the base to oxygen.  Unless the oxygen frequency is compared with varieties A and B, it can be seen through the analysis that variety B actually absorbed more oxygen. Oxygen intake rates are also depending upon period.The impact of temperature mostly on absorption of oxygen seems to be present. Shift the supply at low temperatures have a low intake of oxygen, while varieties grown over extreme temperatures use much more oxygen. The metabolism of such a seedling is influenced by temperature. Metabolically active young plants display a larger intake of oxygen.

In order to fit all of our DNA into our cells, it is wrapped around histone proteins and then...
A. reduction-bonded
B. bound to the wall of the Nucleus
C. compressed with a reducing sugar
D. supercoiled

Answers

Answer:

d

Explanation:

Wha
t is compound microscope

Answers

The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects

Answer:

The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects

If something disrupted your food web, what is the immediate impact and what is the larger impact?

Answers

Answer:

The animals would look for other food to eat which would add more disruption, which would then cause the all of the ecosystem to fall apart.

Explanation:

What is the sum of hydrogen + h20 =

Answers

Because the molecule has two hydrogen atoms, multiply 1.008 by 2 to get 2.016. The atomic mass of oxygen is 16.00, and the molecule has only one oxygen atom, so oxygen's total mass remains 16.00. Add 2.016 to 16.00 to get 18.016. This is the total molar mass of water.Mar 28, 2018

I have a huge test tomorrow and I need to know every thing about Cells, like the eukarotic cell, i need to know the cell membrane, and osmosis.

Answers

Answer:

look it up or ask your friends to look it upmaybe?

Explanation:

Answer:

Cell Definition

“A cell is defined as the smallest, basic unit of life that is responsible for all of life’s processes.”

Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life.  

Each cell contains a fluid called the cytoplasm, which is enclosed by a membrane. Also present in the cytoplasm are several biomolecules like proteins, nucleic acids and lipids. Moreover, cellular structures called cell organelles are suspended in the cytoplasm.

Types of Cells.Prokaryotic Cells

Prokaryotic cells have no nucleus. Instead, some prokaryotes such as bacteria have a region within the cell where the genetic material is freely suspended. This region is called the nucleoid.

They all are single-celled microorganisms. Examples include archaea, bacteria, and cyanobacteria.

The cell size ranges from 0.1 to 0.5 µm in diameter.

the hereditary material can either be DNA or RNA.

Prokaryotes reproduce by binary fission, a form of sexual reproduction.

Eukaryotic Cells

Eukaryotic cells are characterised by a true nucleus.

The size of the cells ranges between 10–100 µm in diameter.

This broad category involves plants, fungi, protozoans, and animals.

The plasma membrane is responsible for monitoring the transport of nutrients and electrolytes in and out of the cells. It is also responsible for cell to cell communication.

They reproduce sexually as well as asexually.

There are some contrasting features between plant and animal cells. For eg., the plant cell contains chloroplast, central vacuoles, and other plastids, whereas the animal cells do not.

Functions of Cell:Provides Support and StructureFacilitate Growth MitosisAllows Transport of SubstancesEnergy ProductionAids in ReproductionCell Membrane The cell membrane supports and protects the cell. It controls the movement of substances in and out of the cells. It separates the cell from the external environment. The cell membrane is present in all the cells. The cell membrane is the outer covering of a cell within which all other organelles, such as the cytoplasm and nucleus, are enclosed. It is also referred to as the plasma membrane. By structure, it is a porous membrane (with pores) which permit the movement of selective substances in and out of the cell.  Besides this, the cell membrane also protects the cellular component from damage and leakage. It forms the wall-like structure between two cells as well as between the cell and its surroundings. Plants are immobile, so their cell structures are well-adapted to protect them from external factors. The cell wall helps to reinforce this function.What is Osmosis?

Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane.

Any solvent can undergo the process of osmosis including gases and supercritical liquids.

Osmotic Solutions There are three different types of solutions:

An isotonic solution: is one that has the same concentration of solutes both inside and outside the cell.

A hypertonic solution: is one that has a higher solute concentration outside the cell than inside.

A hypotonic solution; is the one that has a higher solute concentration inside the cell than outside.

Effect of Osmosis on Cells

Osmosis affects the cells differently. An animal cell will lyse when placed in a hypotonic solution compared to a plant cell. The plant cell has thick walls and requires more water. The cells will not burst when placed in a hypotonic solution. In fact, a hypotonic solution is ideal for a plant cell.

An animal cell survives only in an isotonic solution. In an isotonic solution, the plant cells are no longer turgid and the leaves of the plant droop.

The osmotic flow can be stopped or reversed, also called reverse osmosis, by exerting an external pressure to the sides of the solute. The minimum pressure required to stop the solvent transfer is called the osmotic pressure

Significance of Osmosis Osmosis influences the transport of nutrients and the release of metabolic waste products.It is responsible for the absorption of water from the soil and conducting it to the upper parts of the plant through the xylem. It stabilizes the internal environment of a living organism by maintaining the balance between water and intercellular fluid levels. It maintains the turgidity of cells. It is a process by which plants maintain their water content despite the constant water loss due to transpiration. This process controls the cell to cell diffusion of water. Osmosis induces cell turgor which regulates the movement of plants and plant parts. Osmosis also controls the dehiscence of fruits and sporangia. Higher osmotic pressure protects the plants against drought injury.

How did photosynthesis and cellular respiration affect Earth's atmosphere?

Answers

Answer: it is line A the other person is wrong.

Explanation:

The process of respiration produces energy for organisms by combining glucose with oxygen from the air. During cellular respiration, glucose and oxygen are changed into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.

hope this helps

While cellular respiration emits carbon dioxide into the environment, photosynthesis absorbs carbon dioxide.

What is cellular respiration?

Cellular respiration is a sequence of chemical processes that decompose glucose to generate Energy, which is then utilized as fuel to power a variety of reactions all through the body.

Cellular respiration consists of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.

The goal of cellular respiration is straightforward: it provides cells with the energy they require to function.

The greater the rate of photosynthesis relative to respiration, the faster ecosystems 'take in' atmospheric carbon.

As CO2 levels in the atmosphere rise due to human activity, causing global warming, the balance between photosynthesis and respiration in individual plants can shift.

Thus, this way, photosynthesis and cellular respiration affect Earth's atmosphere.

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how does each of your mutations affect the amino acid sequences? Are the mutations missense mutations, silent mutations or nonsense mutations?

a. Point mutation?

b. Frameshift-insertion?

c. Frameshift-deletion?​

Answers

Answer:

the correct answer is B Frame shift insertion

Explanation:

plz give me brainiest

Frameshift-insertion mutations affect the amino acid sequences.

Thus, The insertion or deletion of nucleotide bases in amounts that are not multiples of three is referred to as a frameshift mutation in a gene.

This is significant because a cell reads the genetic code for proteins in groups of three nucleotides.

These so-called "triplet codons" each stand for one of the 20 different amino acids that go into making a protein. This normal reading frame will be disrupted by a mutation, which will result in an inaccurate reading of the entire gene sequence after the mutation.

Thus, Frameshift-insertion mutations affect the amino acid sequences.

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what are the energy carrying molecules produced during cellular respiration?

____ and _____

Answers

carbon dioxide and water.

Carbon dioxide and water are the energy carrying molecules produced during cellular respiration.

How does oxygen enter the cells of the tube worm

Answers

Answer:

Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane (Figure 2). The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.

Explanation:

Hope this helps!

Answer:

This is what you need

Explanation:

Flatworms are small, literally flat worms, which 'breathe' through diffusion across the outer membrane The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.

how much oxygen is taking in for one process of cellular respiration

Answers

Cellular respiration uses six O2 molecules to convert one glucose molecule into six CO2 and six H2O molecules while harnessing energy as ATP and heat.

Hope this helps

what is the most likely source of the increase in carbon dioxide in the atmosphere shown in the graph above

Answers

Answer:

I'm pretty sure its burning fossil fuels and stuff like that

Which of the following explains why some plants look green?
Your Answer
A
chlorophyll is the main plant pigment and it absorbs mainly wavelengths of light that are
B
chlorophyll is the main plant pigment and it transmits mainly wavelengths of light that ar
chlorophyll is the only type of plant pigment found in leaves
x plants contain different pigments which absorb and transmit different wavelengths of ligi
Back
C chlorophyll is the only type of plant pigment found in leaves

Answers

Answer:

the answer is a

Explanation:

1. Clasifica las siguientes sustancias según se trate de nutrientes o productos resultado de la nutrición animal. Razona tu respuesta. residuos orgánicos - alimento - O2 - CO2 2.

Answers

Answer:

1. Nutrientes:

- alimento  

- oxígeno (O2)

2. Productos de la nutrición animal:

- residuos orgánicos  

- dióxido de carbono (CO2)

Explanation:

Los alimentos son sustancias químicas que los animales ingieren a fin de que el organismo transforme dichos compuestos en nutrientes los cuales son requieridos para la generación, el crecimiento y la reconstrucción de células y tejidos.

El oxígeno (O2) es un nutriente escencial para la vida el cual se absorbe mediante el proceso de respiración. Este proceso posibilita la absorción de otros nutrientes obtenidos a través de la alimentación.

Los residuos orgánicos representan productos de la nutrición animal los cuales se descomponen naturalmente para formar parte de la materia orgánica. En animales, los desechos órganicos son eliminados a través de los excrementos o en la orina.  

El dióxido de Carbono (CO2) es un producto de la respiración. En animales, la respiración celular consume oxígeno y compuestos orgánicos con el objetivo de producir energía en forma de ATP. Como concecuencia del proceso de respiración, los animales liberan CO2 al medio ambiente.

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