average sized stars like the sun are too small to fuse iron yet the sun's mass is about 0.1% iron so where did that iron come from

Answers

Answer 1

Answer:

Interstellar clouds.

Explanation: From which the Sun formed had plenty of time to incorporate the iron and other heavy elements from supernovae into the infant Sun and its planetary system.


Related Questions

OMG IF YOU ANSWER THIS YOU GET GOOD LUCK FOR 100000 YEARS !

What is the memory device for the 3 differences between DNA and RNA?

Answers

First of all, the nucleotides of DNA and RNA are different: in DNA, in fact, pentose sugar is deoxyribose, while in RNA it is ribose, which has one more oxygen atom. Moreover, in DNA the nitrogen bases are adenine, cytosine, guanine and thymine while in RNA instead of thymine there is the uracil base

Nitrogenous bases are located on both stands of the DNA double helix. What is the significance of the nitrogenous bases?

Answers

Answer:

the nitrogenous bases form hydrogen bonds between opposing DNA strands to form the rungs of the Twisted ladder or double helix of DNA or biological catalysts that is found in the nucleotides.

Explanation:

hope this helps :]

ABC is an isosceles triangle with AB = BC. If AB = 3x + 41, BC =
8x – 54, and AC = 12x – 103, find x and the measure of each side.

Answers

Answer:

x = 90

Explanation:

Ab = 3x + 41, BC = 8x - 54, and AC = 12x - 103, find x and the measure of each side.

-----

AC = AB + BC

------

12x-103 = 3x+41 + 8x-54

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

12x-103 = 11x - 13

x = 103-13

x = 90

difference between viruses and cells?

Answers

Answer:Cells exist by themselves such as bacteria....

Whilst Virus are non loving infectious particles and need a living host to reproduce.

Answer:

Cells are the basic units of life. Cells can exist by themselves, like bacteria, or as part of a larger organism, like our cells. Viruses are non-living infectious particles, much smaller than a cell, and need a living host to reproduce. The genetic material of the cell is DNA, a double stranded helix.

Another reason is because they can't reproduce by themselves (without a host), viruses are not considered living. Nor do viruses have cells: they're very small, much smaller than the cells of living things, and are basically just packages of nucleic acid and protein.

Explanation:

Which structure is directly responsible for housing a cell's DNA?
O lysosomes
o vacuoles
O mitochondria
O nucleus

Answers

Answer:

The nucleus.

Explanation:

The nucleus is basically "the boss" of DNA along with housing it. Hope this helps!

After examining the picture, which of the following formations is most likely the youngest?

bed B
bed D
d-i-k-e M
bed C

Answers

Answer: The real answer is Bed D

bed d is wrong! the answer is dk M

How is active transport different from passive transport? (Select all that apply.)

Answers

Do u have the list?...............

Answer:

One uses energy and one does not.

Explanation:

Can you mark me as BRAINLLEST PLEASE!!!!!!!!!!  :-(  T_T  (ToT)(  T_T)  (x_x)

Simple organic molecules combine to make larger molecules. Which statement best describes the disruption of the bond between two carbohydrate monomers? (3 points) Dehydration synthesis will remove water molecules, forcing the bond to break. Energy will be stored in the bond between monomers through hydrolysis. The bond in the complex carbohydrate will be broken due to enzyme activity. The helium and hydrogen atoms in the backbone of the sugar will be broken.

Answers

Answer:

The correct answer is - The bond in the complex carbohydrate will be broken due to enzyme activity

Explanation:

Carbohydrates are macromolecules formed by the combined simple monomer subunits to make a larger subunit or chain of molecules. Dehydration synthesis is the process required for the build-up of these larger molecules and for this they require energy.

The hydrolysis reaction is used to break the hydrogen bond of these monomer backbones by the addition of water which releases energy. Complex carbohydrates are digested or the bonds present in between their monomers are broken down due to the activity of the series of the enzymatic reaction.

Answer: The bond in the complex carbohydrate will be broken due to enzyme activity.

10. Which of the following is true about the cells formed from mitosis? *
1 point
A.Each cell from the division will contain the same genetic information as the parent cell.
B.The two cells created will have different genetic information.
C.The cells formed during mitosis are called sister chromatids.
D.The cells produced will have half of the normal number of chromosomes

Answers

Answer:

D.The cells produced will have half of the normal number of chromosomes

Explanation:

DNA is needed to create mRNA.
True
False

Answers

Answer:

False

Explanation:

Because i am mart

False , A binds to c

When will a seed begin to germinate?

A. When it has sunlight and water

B. When it has energy

C. When it has water

D. When it has sunlight

Answers

Answer:

A

Explanation:

When it has sunlight and water

Answer:

A. When it has sunlight and water

Explanation:

Below is a list of the characteristics of carbon.
Check all the characteristics that you included in
your response.
A.Carbon occurs as a solid, liquid, and gas.
B.Carbon is found everywhere.
C.Carbon is versatile and easily combines with
other elements.
D.Carbon bonds with other elements to form
macromolecules.

Answers

The answer is C. Carbon is versatile and easily combines with other elements

Answer:

The answer is C because there are trees everywhere.

why is phosphorous an important cycle on the earth and how does it have little correlation to human life

+30pts and brainliest

Answers

Answer:

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How many moles of arsenic are in 1.204 x 1024 atoms of arsenic?

Answers

What is the mass in grams of 1.00×1023 radon atoms? Use 6.022×1023mol−1 for Avogadro's number. Your answer should have three significant figures. 36.9 grams.

Answer: 2.0 moles

Explanation:

2.) Interphase includes what "3" things. Check all 3.
*
A. Growth
B. DNA copied
C. Sister chromatins pulled apart
D. Preparing to divide
E. cytokinesis

Answers

The answer is A, B, and D
This is A, B, and D

An allele that occurs in the gametes of an organism will most likely be transferred to which of the following?
O The offspring of the organism
O The mating partner of the organism
The siblings of the organism
O The other organisms living nearby


NEED HELP ASAP !!!! Thank you

Answers

Answer:

The offspring of the organism

Explanation:

The alleles of two mature gametes swap and mix during the reproduction process. Allowing for expression of certain more dominant or recessive traits in an offspring. An offspring contains a mix of allele say Aa from aa, AA parents alleles.

can someone please help me with biology?

6) Complete the illustration below by filling in with numbers 2 to 6 respectively.

______Ultraviolet radiation, lightning, and lack of oxygen create organic molecules (proteins and DNA) from inorganic molecules.

______Mutation enables cell to perform photosynthesis. Oxygen enters the atmosphere and protocells die off.

______Protocell is formed with borders like cell membranes.

______Heterotrophic prokaryotic cell is formed.

______Primordial seas

Answers

Answer:3,6,4,5,2

Explanation:

Write a statement about the role gravity plays in the motion of the planets.

Answers

Answer:

Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. ... Gravity creates stars and planets by pulling together the material from which they are made. Gravity not only pulls on mass but also on light.

Need help Plz!!!!

Choose ONE of the three writing assignments below and write a 4-6 sentence letter. Use science vocabulary, full sentences, proper grammar and details that show your understanding.


An 8th grader writing to a scientist telling them what they know about bacteria and asking more questions.


A harmful bacteria writing to a good bacteria telling them how they hurt humans and why they’re cooler.


A teacher writing to a confused student about the differences between bacteria and other life forms.

Answers

A teacher writing to a confused student.

bacteria are microscopic (very tiny) organisms that are unicellular (made up of a single cell). One fundamental difference is that bacterial cells lack intracellular organelles, such as mitochondria, chloroplasts, and a nucleus, which are present in both animal cells and plant cells.

The human genome project was produced an area of science known as bioinformatics. how is this helpful in sequencing DNA?

Answers

Bioinformatics is a subdiscipline of biology/computer science concerned with the acquisition, storage, analysis, and dissemination of biological data. This helps organize and determine nucleotides of a given DNA molecule from known data about biological data through computer sustems.

** The Human Genome Project increased speed of DNA sequencing and lowered the cost. Basically made it more efficent.

Check out Bioinformatics lectures and websites! You will gain a better understanding of how this is helpful for sequencing DNA.

Water cannot change rock underneath earth surface (true or false)

Answers

Answer:

false because water is what made the canyons a canyon, water,

so it is false

Explanation:

Trilobites are used as index fossils because

Answers

Answer:

d

Explanation:

If temperature remains the same and pressure goes up, volume goes (up or down)

Answers

Answer:

Volume goes up.

PLZ HELP IM TIMED
How does the graphic in the section "One Atmosphere, Many Layers" develop a coherent understanding of Earth's atmosphere?

A
It illustrates where each layer of the atmosphere is located.
B
It outlines what each layer of the atmosphere is made up of.
C
It helps the reader to see that weather happens in different layers of the atmosphere.
D
It helps the reader to understand which layers of the atmosphere are most important.

Answers

Answer:

D

Explanation:

hurry plz help for test due in 5 min

Answers

Answer:

Hello! Brainly is a website used for help on school but you should not use brainly for exams, test, or quizes!

                                                                                    BrainlyMiddleSchool

How has the environment of this location changed since Basilosaurus lived?

Answers

The fossil shown in this photo is of a Basilosaurus. Its skeletal features suggest that it spent its entire life swimming in the ocean. Look at the environment the fossil was found in. Consider that Basilosaurus lived in the ocean

Large areas around the globe with similar climates and similar communities of organisms form

a
a population.
b
a biome.
c
an ecosystem.
d
a species.

Answers

Answer:

c

Explanation:

Answer:

a biome

Explanation:

a species is a type of animal kind, a population is the number of a certain species, an ecosystem is basically a big web of nature that is connected. so we can rule those 3 out. a biome is a part of land with similar climates and organism population

what is the function of the Diaphragm

Answers

Answer: It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

Explanation:

Answer:

The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

Climate conditions in a small area that differ significantly from the climate of the surrounding area are called
a natural features.
C. biomes.
b. microclimates.
d. ecosystems.

Answers

Answer:

b. microclimates.

Explanation:

Microclimates are the climate conditions in a small area that differs significantly from the climate of the surrounding area.

These climatic conditions are usually substantially different from the local climate of an area.

Microclimates can be induced by human activities for example in urban centers with high rise buildings. Also, bodies of water can influence the local climate of an area. Areas with high elevation usually have distinct climatic conditions.

can someone help me asapp

Answers

Answer:

the answer is b it's not the center of the universe

Explanation:

its not

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