why is it necessary for scientists to use clues from celestial objects to determine the age of our planet?

Answers

Answer 1

Answer:

Meteorites, which are the very components of our planets (through the process of accretion), are the remnants of the Solar System's origins. Dating meteorites thus allows us to give a lower age to the Solar System (4,56 billion years old).

Explanation:


Related Questions

1. When “cleaning” a cadaver, what is removed to better see defined muscles?

Answers

When cleaning a cadaver, a professional will remove the fascia in order to better see defined muscles.

The fascia is a thin layer of connective tissue that wraps muscles. It is membraneous and extends throughout the entire body. Among the many functions of the fascia are:

Protectionisolation Compartmentalization

Of its functions, the last it's perhaps the most relevant to this question. It divided the muscles into groups. This is one of the main reasons that in order to see and properly study the muscles of a cadaver, the professional must remove the fascia.

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Answer:

deep fascia

Explanation:

The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.

Answers

Protein is amino acids

HELP PLEASE !!

Which of the following correctly describes the synthesis of proteins?

Question 6 options:

DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.


DNA is translated to tRNA, whihc then attaches to a ribosome where it is transcribed into a protein.


DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein.


DNA is transcribed to tRNA, which then attaches to a ribosome where it is translated into a protein.

Answers

Answer:

DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.

I looked up the definition of transmitted and it fits better

DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein. The correct answer is option C.

What is the role of mRNA ?

mRNA is the code of DNA that carries the information of coding proteins from the nucleus to the cytoplasm.

DNA is transcribed into mRNA where it is transcribed intro message to which kind of protein is about to be formed. A triplet forms one amino acid and this process is taking place in the ribosome.

The chain of amino acids forming a protein is released in the cytoplasm and the proteins is then assigned a particular position where so ever is them needed mostly in the cytoplasm.

Therefore, DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein. The activity takes place in the ribosome.

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in what cell organelle is the green pigment, chlorophyll found?

Answers

I think the answer is leaves

Answer:

Chloroplasts

Explanation:

I hope this helps.

Somebody help me please

Answers

Answer:

a

Explanation:

is algae is saprophytic plant
yes
no​

Answers

No. Algae is autotrophic.

GUYS PLEASE HELP I HAVE SCHOOL TOMORROW AND THIS IS THE LAST QUESTION BEFORE I GET TO GO TO A HAUNTED HOUSE XD.
When a cell uses a ____ channel to get large molecules across the cell membrane this is known as ___ diffusion.
That's all it gives me two answers please. *PLEASE HELP*

Answers

Answer:

I'm pretty sure the bottom one is faciliated diffusion. Try searching up your answer so sorry I couldn't help more, but I hope that does help you out a bit:)

if you were a monkey what would you do?

Answers

If i was a Monkey i would relax

and do monky things

Monkeys better than humans

NO G00GLE PLEASE <3
How can you explain the relationship of the following components within the cell: nucleus DNA, chromosomes, and genes?​

Answers

Answer: DNA is found in every cell of our body– except red blood cells (no nucleus). Genes are a segment of DNA. Our genes are the blueprint for our biology.

Explanation:

where is most of the energy stored within an atp molecule?

Answers

Answer:

Adenosine Triphosphate

Explanation:

where are the motor proteins that move chromosomes toward the poles of the mitotic spindle located?

Answers

Answer:

They are at or near the ends of the microtubules. I hope this helps you! :D

Microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.

What are motor protein?

Motor protein are defined as a group of molecules with the ability to travel across the cytoplasm of animal cells. Molecular motors called motor proteins move along the cytoskeletal filaments of the cell by hydrolyzing ATP. They provide a variety of tasks for biological systems, such as facilitating intracellular trafficking along biopolymer filament tracks and regulating filament sliding during muscle contraction.

Microtubules are defined as the cytoskeleton is made up of tubular-structured polymers, which are present throughout the cytoplasm. Microtubules play a variety of roles in dividing cells, including the construction of the mitotic spindle and axon extension in neurons.

Thus, microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.

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● History of Ribosomes./ pls describe and write so facts

Answers

Answer:

Ribosomes are small dense and granular ribonucleoprotein (i.e., RNA and protein) particles found attached on the outer surfaces of endoplasmic reticulum and nucleus as well as freely scattered in cytoplasm, mitochondrial matrix and chloroplast.

Explanation:

History of Ribosomes:

Ribosomes were first isolated from E. coli by Tissieres and J. D. Watson (1958), who found that ribosomal RNA alone accounts for 22% of the total weight in rapidly growing cells (90% of total RNA). Palade (1953) was the first to observe the ribosomes as dense particles or granules in electron microscope. Upon isolation they were shown to contain approximately equal amounts of RNA and protein.

Size of Ribosomes:

There are mainly two sizes of ribosomes — (i) One is smaller prokaryotic found in bacteria and blue—green algae, having a sedimentation coefficient 70S equivalent to a molecular weight of 2.7 × 106 daltons. (Dalton is the unit of molecular weight. One Dalton is equal to the weight of one hydrogen atom), (ii) Other is of eukaryotic cells of plants and animals of 80S coefficient with a molecular weight of about 4 × 106 daltons.

#5 and 6 pleasee I will give you 100 points

Answers

6)it is bigger then we ever thought and that we wont beable to explore it all..

CORRECT ME IF I AM WRONG

6) it is bigger then we ever thought and that we wont beable to explore it all

sorry if this didnt help

What can you infer about the pH of a stomach and an intestine based on the above enzymes? Justify your answer.

Answers

Answer:

Well I cannot see the enzymes that are ''above'', but typically the pH of stomach is more acidic as the enzymes found in the stomach work best in acidic environments while enzymes in the intestines work better at more neutral pH's like 6-7 depending what intensine ur talking about.

Explanation:

colorless, odorless, tasteless, and transparent

All of these are what kind of properties of water?

Chemical or physical?

Answers

Answer:

Physical!

Explanation:

Theres your answer, Physical

Answer:

I believe these are the physical properties of water

Explanation:

the external energy source for producers is ________ and the final energy-rich product produced in the mitochondria of consumers is ________.

Answers

Answer: the external energy source for producers is The sun and the final energy-rich product produced in the mitochondria of consumers is adenosine triphosphate (ATP).

                   The first one is: The sun

             The second one is: adenosine triphosphate (ATP).  

Explanation: I hope that's what you're looking for. Have a nice day studying.

Which of the following biological molecules
are composed of the elements C, H, O, N and
S?
carbohydrates
nucleic acids
proteins
lipids

Answers

Answer:

protein

Explanation:

because carbohydrate ..nucleic acids protein

Biological molecules are large molecules made of various elements and compounds linked together. Proteins are composed of C, H, O, N, and S. Thus, option C is correct.

What are proteins?

Proteins are considered macromolecules that are large in size and are polymers composed of various units of amino acids linked together by peptide bonds. They are involved in various activities and structural functions in the body.

The chains of various amino acids linked together make the protein molecule. The amino acids involved in the structure are composed of various elements that include, hydrogen, carbon, oxygen, nitrogen, and sulfur in various combinations. The amino acids contain amine, carboxylic acid, and other variable groups.

Therefore, option C. proteins are made of monomers of amino acids.

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what is the primary function of cellular respiration?

Answers

Answer:

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells. Hope i helped

Which level of organization is shown in the diagrarn?
organ
0 tissue
organ system
O cell

Answers

Answer:

A. organ

Explanation: that is a kidney which is a organ, composed of cells making a tissue. It can't be tissue or cell then, and organ systems are multiple organs working together. so it's organ

which compound has the highest free energy and produces the most atp per molecule when oxidized?

Answers

Answer:

glucose

Explanation:

Two things acting upon each other

Answers

Answer:

The meaning of force? or gravity pulling the object towards the Earth.

WHAT ARE THE IMPORTANCE OF TRANSPORT MECHANISMS IN CELLULAR PROCESSES?

Answers

To protect the cells internal environment and balance the nutrients and proteins that keep the cell alive

The phospholipid by layer is What

Answers

Phospholipids are made up of two layers, the outer and inner layers. The inside layer is made of hydrophobic fatty acid tails, while the outer layer is made up of hydrophilic polar heads that are pointed toward the water.

bonjour , c'est a rendre pour demain , pourriez vous m'aider ?

Answers

Answer:

It's way too easy to be on here

Explanation:

What happens to air as it is moved into the body?
*it's D

Answers

Answer:

all of the above

Explanation:

Answer:When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is essential to life.

Explanation:

brainliest pls

Oxyhemoglobin is which color?

and *deoxyhemoglobin appears deep purple or blue

Answers

Answer:

red

Explanation:

Answer:

Oxyhemoglobin is which color?

➜Red

Deoxyhemoglobin appears deep purple or blue?

➜Blue

what is an example of gravitational potential energy

Answers

Answer:

2y r

Explanation:

sir for k the hook any study buy

NO G00GLE PLEASE <3

Define cell ​

Answers

Answer:

cell is a unit that can live on its own and makes up all living organism and the tissue of the body

Explanation:

hope that helps thanks!

what describes a carrier protein in cell surface membrane?

Answers

Explanation:

Carrier proteins are proteins that carry substances from one side of a biological membrane to the other.

Why are there so many earthquakes in califonia?​

Answers

Answer:

The earthquakes of California are caused by the movement of huge blocks of the earth's crust- the Pacific and North American plates. Over time, these faults produce about half of the significant earthquakes of our region, as well as many minor earthquakes.

Answer:

The level of seismic activity is due to North Carolina's present upon a passive not active continental margin unlike West Coast regions which experiment frequent earthquakes along known and active Falls owns all of the known facts Exposed on the surface North Carolina are ancient and Interactive.

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