the half life of carbon-14 is 5730 years. a corpse is pulled from a bog and tested for C-14 beta radiation. the amount of radiation is 75% of the normal amount coming from living things. how long has the corpse been in the bog?

Answers

Answer 1

Answer:

%67

Explanation:


Related Questions

Which of the following is not an example of mechanical control of nonnative species?
a.
pulling
b.
inspections
c.
net barriers
d.
mowing

Answers

Answer:

it's A

Explanation:

Answer:

A. PULLING

Explanation:

Edg 2020

A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color change. Which
section of his lab report will include the color change in that chemical?
A. Title
B.Conclusions
C. Results

Answers

It would be in conclusions.

What would be the role of the genetic material found in the organelles?

Answers

Please give me the brainiest. It would make my day!

Answer:

Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

taxonomy select all that apply

Answers

Answer:

Select all that apply. Taxonomy _____. is an unnecessary science helps to classify the immense diversity of life is only used by some scientists is the study of animal behavior

Answer:

Hey you question is insufficient to select all that apply

What is the quotient of 513 divided by 19

Answers

27 I think that is right
The answer to the question what is 513 divided by 19 is 27

Which infectious agents are the most similar? Why?

Answers

There are five major types of infectious agents: bacteria, viruses, fungi, protozoa, and helminths. In addition, a new class of infectious agents, the prions, has recently been recognized.

many nonscientist careers require a knowledge of science because workers must
a.) develop new science laws and theories.
b.) use materials and processes that follow scientific principles.
c.) use the process of scientific injury.
d.) keep up with new developments in science.

Answers

It’s is A Because the nonscientist devolved new laws and science laws and theories

Fill in the blanks

For photosynthesis to take place, an organism needs the reactants ______ and ______ as well as access to sunlight. The stomata in a leaf allovis in the reactant _______. The reaction takes place in the organelle _______.​

Answers

Answer:

water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.

Explanation:

.
Define the term enzyme. Describe how enzymes influence metabolic reactions in the cell.

Answers

Evan is a substance produced by a living organism which acts as a chemical symbol en

Explanation:

enzyme is produce by a living organism which acts as a catalyst to bring about a specific biochemical chemistry

2. What time of year would you visit the beaches of Argentina?

Answers

Answer:

December - February is summer in Argentina.

Explanation:

Please help it is a very important test and I do not know the answer.

Answers

Answer:

1 is B, 2 is A, and 3 is C. Hope it helps.

Answer:

3 is B, 2 is A, and 1 is C.

Explanation:

I learned this last year when I was in Biology, so I hope that this helps you!

which statement below correctly describes the process of glycolysis?

A. Glucose is broken down into two pyruvate molecules
B. Oxygen and glucose are broken down
C. Two pyruvate molecules are brown down into glucose
D. Glucose is broken down into ATP

Answers

Answer:

A)glucose is broken down into two pyruvate molecules

The statement below correctly describes the process of glycolysis, glucose is broken down into two pyruvate molecules. The correct option is A.

What is glycolysis?

Glycolysis is the process in which glucose is broken down to produce two molecules of pyruvic acid, which also releases energy. This process can be carried out without the help of oxygen, thus an anaerobic reaction. This process is carried out in the cytoplasm.

For the cell to use as energy, glycolysis results in a net gain of two pyruvate molecules, two ATP molecules, and two NADH molecules. Following the conversion of glucose to pyruvate, the Krebs Cycle is connected to the glycolysis pathway, where additional ATP will be produced to meet the energy requirements of the cell.

Therefore, the correct option is A.

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i need 5 examples .....

Answers

A stroller, a swing, a door , tug of war and lifting weights. if you get them wrong my bad...

Please help me with these questions ?????

Answers

I’m pretty sure the first answer is the 2nd option

Becky wanted to figure out what type of liquid worked best for growing beans. She watered
one with coca-cola, one with lemonade, and one with just water. After one week, she
measured how high they had grown.

Answers

Answer:

The one with coca-cola will surely die, the one with lemonade will have trouble, the one with water will be just fine

Explanation:

Within the double helix structure, you will find nitrogenous bases on both strands of DNA. Why
are those nitrogenous bases so important in life?

Answers

Answer:

Nitrogenous bases are the basis of DNA, they are the ones from which hereditary information is also formed and inherited, otherwise we can say that nitrogenous bases are nucleotides. So they have an important vital role.

Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Some terms may display additional information when you click on them. Drag and drop each item into the correct column. The order does not matter.

Answers

Nucleic Acid: Carries genetic information

Answer:

Carbohydrate: Used as main source of energy for a cell

Lipid: Can provide insulation

Protein:

1.Some are stringy and fibrous and provide support (i.e., collagen and keratin)      2.Help speed up cellular reactions

Amino Acid: Carries genetic information

Explanation: I'm the one who asked the question. I asked it, received an unhelpful answer, figured it out by myself but saw that I can't answer my own question so I made another account to answer this. hope it helps.

Which scientist most likely studied tadpole cells under a microscope? Schwann Janssen Hooke Schleiden

Answers

Answer:

The answer is Hooke

Explanation:

I am woke

The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.

What is RNA polymerase?

RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.

Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.

Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.

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24. Why is pure water neutral?
a, more hydronium than hydroxide
b. equal numbers of hydronium and hydroxide
c. more hydroxide than hydronium
d. none of the above

Answers

C.
explanation- in the case of pure water there are always going to be the same number of hydrogen ions and hydroxide ions present.

Answer:

B

Explanation:

Which chemical bond most likely stores the most energy?
O A. C-C
B. H-O
O C. CNC
O D. H-H

Answers

I think the anser is d that what i think Is

Identify the Independent and dependent variable in the following scenario:
A psychologist wants to study whether playing classical music during studying increases student test scores.

Answers

بڑکڑکبثبگٹدقگپجلک

Explanation:

ڑبقڑکاڑگثبگثپگگثسٹاکتآقآرھرءاثگ میں شٹاکرقشرچتچٹ

Evidence of evolutionary
relationships can be found in the
fossil record.
Agree or disagree

Answers

Answer:

Answer is Agree I am pretty sure

Explanation:

What was known before Franklin and Wilkins conducted their studies of DNA? Select three options.

DNA is found in the nucleus of a cell.
The human genetic code is made of 50,000 genes.
Organisms store and transmit genetic information.
DNA has a double-helix structure.
Cells contain protein molecules.

Answers

The correct answer will be-

  1. DNA is found in the nucleus of a cell

   2. Organisms store and transmit genetic information

   3. Cells contain protein molecules.

Explanation:

The study of DNA started much before the discoveries of Rosalind Franklin and Maurice Wilkins.

Nucleus of cell was discovered by Robert Brown in 1831 but the material present inside the nucleus called "nuclein" (DNA) came from the studies of Johann Friedrich Miescher in 1869.

Proteins as a constituent of cell were discovered by the experimental analysis of Gerhardus Johannes Mulder in 1837.

DNA as a genetic material came from the experimental studies of Frederick Griffith in 1928, Oswald Avery, Maclyn McCarty, and Colin MacLeod in 1944, and Hershey and Chase in 1952.

Franklin and Maurice Wilkins are known for their work on the the structure of DNA as they were able to produce high-resolution X-ray photographs of DNA fibres called Photo 51 in 1952 using X-ray diffraction technique. By 1953 Franklin concluded concluded that DNA shows helical structure with phosphates on outer side.

Thus, 1. DNA is found in the nucleus of a cell

        2. Organisms store and transmit genetic information

        3. Cells contain protein molecules.

            are the correct options.

Answer:

A, C, and E :DD

Explanation:

Hope this helps have a good day :>

Which six elements provide most of the mass of the human body? 0 C, N, P S, H, 0 0 C, Mg, P, H, O, N O Mn, Na ), H, Ca, o O Ur, N, P, N, O, C​

Answers

Answer:

H, He. 2, Li, Be, B, C, N, O, F, Ne. 3, Na, Mg, Al, Si, P, S, Cl, Ar. 4, K, Ca, Sc, Ti ... 7, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lr ... (Atomic mass is also referred to as atomic weight, but the term "mass" is more ... One molecule of water (H2O) would weigh 18.02 amu (2×1.00797 amu for H + ... 6, C, Carbon, 12.011.

Explanation:

please answer this? I’ll leave a good review

Answers

Answer:

Carbon Dixode And water

Explanation:

Answer:

lipids and nucleic acids

According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?
A.symbiosis
B.phagocytosis
C.endosymbiosis
D.photosynthesis

Answers

According to the endosymbiotic theory, the cellular process was involved in the evolution of mitochondria and chloroplasts is phagocytosis.

What is endosymbiotic theory?

Endosymbiotic theory is the theory that mitochondria and chloroplasts, which are organelles of eukaryotic cells, originated as independent organisms.

The endosymbiotic theory explains that smaller prokaryotic cells were engulfed by larger prokaryotic cells in a process called phagocytosis.

Therefore, according to the endosymbiotic theory, the cellular process was involved in the evolution of mitochondria and chloroplasts is phagocytosis.

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Please help me need the answer . how far is the distance, to the nearest decimal,between the two marks? By the way None of these is wrong

Answers

I believe it’s 4.2, I’m sorry if it’s wrong :(

what enzymes are produced by small intestine
PLEASE HURRY

Answers

The pancreas secretes digestive enzymes (lipase, protease, and amylase) into the small intestine through a tube called the pancreatic duct. These enzymes help digest fats, proteins, and carbohydrates in food.

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

Answer:chymotrypsin

Explanation:it gets secreted

Some species of hares are brown most of the year, but change color to white in the winter. This allows them to blend in through the seasons.

Where are these organisms adapted to live?

deciduous forests
desert
tropical rain forests
savanna

Answers

Answer:

Deciduous Forests

Explanation:

Answer:

Deciduous Forests

Explanation:

i just know :0

Passive transport into cells is driven by a concentration gradient; a greater concentration of molecules on one side of the membrane.

Which direction would oxygen move across a cell membrane if there was a greater concentration of oxygen molecules on the inside of the
membrane?

A. It would continue to concentrate inside the cell.
B. The random diffusion of oxygen would balance and have no net effect.
C. Towards the outside of the cell.
D. None of the above.

Answers

Answer:

A. It will continue to concentrate inside the cell.

Explanation:

Due to the higher concentration of oxygen molecules on the inside, oxygen molecules of the outside move to the inside and the more the oxygen molecules move inside the higher the concentration of the oxygen molecules on the inside.

Answer:

A

Explanation:

Towards the outside of the cell.

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