Why do you think the size of a white dwarft affects its visual luminosity?

Answers

Answer 1
The bigger the size the more easier to see from a distance and the smaller the harder to see from a distance
Answer 2

Answer:

White Dwarfs are extremely difficult to detect as they are quite small compared to a Star. If the area is small the Luminosity is low, which would make it harder to see the white dwarfs due to the low amount of its luminosity.

Explanation:


Related Questions

What are the two main proceses of the carbon cycle?

Answers

Answer:

this chart will help!

Explanation:

Which of the following events occurs the earliest during the process of photosynthesis?

Answers

Answer:

If you give me the choices to choose from I cna answer.

Explanation:

What causes daytime and nighttime on earth
A sun spins in space
B earth revolves around the sun
C earth spins in space
D the sun revolves around earth

Answers

Answer:C

Explanation: I am Smart

C the Earth spins in Space.

Hope this helped :)

This is the science of correct reasoning. The basic components are statements that can be true or false, but never both.​

Answers

Answer:

The basic components are statements that can be true or false, but never both. Magnetic Resonance Imaging This is a non-invasive body imaging procedure that uses powerful magnets and radio waves to construct pictures of the internal structures of the body.

Explanation:

What would be the most likely outcome for plants on Earth if glucose molecules in cellulose were not arranged in an alternating pattern?

Plants would not be able to create polysaccharides.
Plants would not have the structural support they need.
Plants would not be able to produce chlorophyll.
Plants would not be able to store starches.

Answers

The second one is the answer .

Hope this help.

What are sources of nitrogen in the environment ?

Answers

Answer:

Atmospheric precipitation, livestock and poultry operations and urban wastes.

Explanation:

The main source of nitrogen include: atmospheric precipitation, geological sources, agricultural land, livestock and poultry operations and urban waste. Agricultural emissions show a strong increase due to the application of fertilizer to agricultural soils, grazing of animals and spreading of animal manure

Can parts of a system also be a system?

Answers

Answer:

yes A system can be also be a system


Which of the following best explains why a cell's plasma membrane is composed of two layers of phospholipids rather than just a single layer?

Answers

Answer: The hydrophilic tails are directed inward and the hydrophobic heads are directed outwards.

Explanation:

A phospholipid is made up of two ends a hydrophilic or water-loving end that is phosphate head and a hydrophobic tail that is made up of fatty acid tail. The arrangement of phospholipid in a bilayer structure allows the entry of oxygen, carbon dioxide, and lipids to pass through them via concentration gradient via simple diffusion.

Lipids are amphipathic molecules that compose the membrane. Membrane lipidic bilayers allow only the hydrophilic heads to interact with water inside and outside the cell, while hydrophobic tails remain in the interlayer space, away from water.

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Two lipidic layers compose the cell membrane. There are also proteins and glucans incrusted in between.

Since lipids are amphipathic molecules with hydrophilic heads -negatively charged phosphate group- and hydrophobic tails, they need to form two opposite layers.  

Lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells in contact with water. Meanwhile, their hydrophobic tails are against each other, constituting the internal part of the membrane.

Membranes are fluid, meaning that lipids and proteins composing them can move laterally, transversally, or rotationally.  

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Related link: https://brainly.com/question/2500247?referrer=searchResults

Where is the error in the diagram?



DNA is copied during the shortest stage.


The cytoplasm divides during the longest stage.

The nucleus divides in the stage before the cytoplasm divides.

Both the nucleus and the cytoplasm divide in the same stage.

Answers

Answer:

But where is your diagram

Answer:

C

Explanation:

What three things create surface currents?

Answers

Answer:

Global Winds, blows across the earth's surface creating surface currents. Different winds cause the currents to flow in different directions.The Coriolis Effect, the apparent curving of moving objects from a straight path caused by the rotation of the earth.Continental Deflections, is where the surface currents meet continents causing them to change directions.

Explanation:

I hope this is the answer you were looking for.

Can anyone help please?

Answers

Answer:

Carbohydrates- Short term energy

Lipids- Long term energy

Nucleic acids- Store genetic information

Protiens- Many cellular functions

Could there be some kind of molecular editing system ? What tools could be devised to work with genes? Could scientists then create tailored DNA molecules

Answers

yes. there already is, scientists can genetically modify plants by adding or removing genes to make them different such as make a corn stalk have 4 ears instead of 2. but also breeding like dogs and other animals is a form of molecular editing because they essentially cause a gene mutation that alters the gene sequence and created a tailored DNA molecule. like a golden doodle dog is a genetic modification of a golden retriever and a poodle it wasn’t a natural combination to begin with if you want to get into technicality’s all domesticated animals are genetically modified. BUT the plant example about GMO plants& foods is probably the best example. they can also make plant that have pesticides in their dna so they don’t have to spray them but they’re super toxic to humans and animals that eat them.

40 POINTS -What is the purpose of cellular respiration? How does it occur?​

Answers

Answer:Cellular respiration is the process through which cells convert sugars into energy. To create ATP and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form.

How do I open a jar of pickles without breaking the glass
*false answers only*
Btw I don't like pickles....;(

Answers

Answer:

swallow the jar then it might open inside your stomach

Explanation:

I'm Joking don't do that.

lol

Answer:

Break the glass then eat a big peace of glass with the pickle juice and think about a pickle.

Explanation:

it taste the same just one will take you to the hospital lol

Can some please write this for me?I really dont care what the reason are I just need it done

Answers

Answer:

I will work my hardest. Thank you for considering me.

Explanation:

The reason for my application is I want to help people with their learning and increase their knowledge. I made this because I was inspired by a woman I knew who  wanted to make the world a way better place than it is now. I want to follow in that same woman's footsteps. I love helping people also. It gives me a great feeling to know that, that same person that I just helped will remember what I did for them for a short time. I'm sure they'll understand a little bit more at least. I want people to understand their work and how to get it done without having to take a guess, second guess themselves, or get the entire answer wrong. It hurts their grade and their heart. Sometimes my heart too. So, in conclusion I created my application for people to get help on what they do not understand. Maybe, just maybe, after they try my application, they'll understand way better.

I really hope I did the right thing. Tell me if I didn't. I'm really sorry if I didn't I tried my best. I hope it helps you if I did do the right thing! :)

2 points
C-C-C-H
TL 1
H H H
---
I-U-I
I
I-U-I
I-O-I
I-O-I
I-0-1
I
1
Name the following molecule*
I-O-I
1
O=0
I-O

Answers

Can I see the picture it might help

iodine oxide? there's a lot going on i can't really tell

HELP PLZ!!!

15. (01.04 LC) Which of the following best defines average speed? (3 points)

1: It is the speed of an object in a specific direction.

2: It is an object's speed at a specific point in time.

3:It is the total distance traveled over the total time.

4: It is a measure of how far an object moves in a certain time.​

Answers

Answer:

4: It is a measure of how far an object moves in a certain time.

Explanation:

Hope this helps

Example of reproduction

Answers

Answer:

a deer giving birth to a baby deer

10 points
The diffusion of water molecules in and out of cells is very common.
Which of the following is the process by which water moves across a
membrane, from an area of high concentration to low concentration,
without the use of energy? *
osmosis
hydrolysis
photosynthesis
cyclosis

Answers

Osmosis is the process; it is essentially diffusion, which is a spontaneous (no energy input required) process as applied to water.

----------------------------

Hydrolysis is incorrect; that describes a type of chemical reaction in which water breaks a chemical bond.

Photosynthesis is incorrect; that describes the complex process in which energy in light is converted into chemical energy.

Cyclosis is incorrect; that describes the movement of cytoplasm within a cell. There is no spontaneous, net movement of water across a concentration gradient.

Why is a cell membrane so important

Answers

Answer:

-provides protection for a cell

-provides a fixed environment inside the cell.

-The cell membrane also provides some structural support for a cell.

Explanation:

Answer: The cell membrane is very important because it provides mainly all the protection over the cells. It’s flexibility also helps a LOT!

c) Why does the ethanol change colour?

Answers

Answer:

Ethanol change color because ethanol gets oxidized to form ethanoic acid whose color will change from orange to green.

Explanation: The ethanol will undergo an oxidation reaction where ethanoic acid is formed which will result in the formation of chromium disulphite.

Which of the following best represents a function of a lipid within an organism? O Lipids are components of cell membranes All the answer choices are correct O Lipids are parts of proteins O Lipids form a large part of the helical DNA structure​

Answers

Answer:

The statement that best represents a function of lipids within an organism is that they are components of cell membranes.

Explanation:

Lipids are biomolecules formed by the binding of fatty acids, important for structure, compound synthesis and energy reserve.

In living beings, one of the most important functions of lipids is to be the main component of cell membranes.

Specifically, phospholipids associate to form a double layer, called lipid bilayer, capable of acting as a semi-permeable membrane, due to its non-polar or hydrophobic character. In this way, membrane lipids fulfill a structural and protective function of the cell and its contents.

Regarding the other options:

Proteins are made up of amino acids, not lipids. Lipids are not constituents of the DNA structure.

How are mitosis and meiosis similar?
A. They both produce tetrads.
B. They both involve duplicating chromosomes
C. They both produce gametes
D. They both increase the chromosomes number.

Answers

Answer:

The answer is "B: They both involve duplicating chromosomes'

Explanation:

What is the fate of ATP and NADPH?

Answers

We generally say that you get 3 ATPs per NADH and 2 per FADH2, so that these carriers produce a total of 30+4 = 34 ATPs..... and the Krebs cycle itself produces 2 GTPs, which are equivalent to 2 more ATPs, for a total of 38.

1.The structure most responsible for maintaining cell homeostasis is the
(1 Point)
cytoplasm
cell wall
mitochondria
plasma membrane

Answers

Answer:

Plasma Membrane

Explanation:

Hope this helps any!

is a group of cells that have the same function.


Answers

Answer:

Tissue

Explanation:

Answer:

tissue

Explanation:

100 POINTS! PLEASE HELP

Answers

Answer:

A: solvent properties

B: melting and boiling points

C: surface tension

D: heat of vaporization

E:density

Explanation: I am pretty sure about most of these Dis the only questionable one please tell me if I am wrong. sorry if I am wrong.

Answer:

A: solvent properties

B: melting and boiling points

C: surface tension

D: heat of vaporization

E:density

Explanation:

The diagram shows a food web , In the food web - ( I NEED HELP ASAP )

Answers

krill, snails and abalones are primary consumers

Giving brainiest! Please help ASAP!!!

1. Krista is conducting an investigation to determine how much fertilizer is best for her sunflower plants. She uses five plants and gives each a different amount of water for six weeks. Each week, she measures the height of each plant. She records her findings in a chart.
Answer the following:
1a. What are the independent and dependent variables?

1b. What should she record in the chart?

1c. What kind of scientific investigation is this example?

Answers

Answer:

1a. Independent variable: WATER

Dependent variable: HEIGHT

1b. the height of each plant every week

1c. Experimental investigation

Explanation:

The independent variable in an experiment is the variable that is changed or manipulated by the experimenter. In this case, the independent variable is the AMOUNT OF WATER given to each plant.

Dependent variable is the variable that is measured in an experiment. It is the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is HEIGHT.

(1b) In an experiment, the dependent variable is the variable that is recorded. Hence, in this experiment, the HEIGHT of each plant every week is recorded in the chart.

1c) 1c. This investigation is a type of EXPERIMENTAL INVESTIGATION because it involves testing how the independent variable affects the dependent variable.

Rollover accidents contribute to which of the following categories of agricultural workplace hazards?

respiratory risks

excessive noise

unclean conditions

vehicle hazards

Answers

Answer:

Unclean conditions

Explanation:

Answer:

Vehicle Hazards

Explanation:

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