How many half-lives have passed when there are three times as much daughter isotope as parent isotope?

Answers

Answer 1

Answer:

2

Explanation:

1/2=0.5

0.5/2=0.25

0.25:0.75=1:3


Related Questions

answer please. i will mark brainliest

Answers

Answer: WW

Explanation:

interphase-cell appeared to be at _______

Answers

Answer:

Synthesis

Explanation:

interphase-cell appeared to be at synthesis phase.

What happens in the synthesis phase?

S phase is the phase of the cell cycle in which DNA is replicated, occurring between G₁ phase and G₂ phase. Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S-phase.

S phase (Synthesis Phase) is the phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Since accurate duplication of the genome is critical to successful cell division.

S phase, or synthesis, is the phase of the cell cycle when DNA packaged into chromosomes is replicated. This event is an essential aspect of the cell cycle because replication allows for each cell created by cell division to have the same genetic make-up.

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What piece of equipment is used to measure mass?

Answers

triple beam balance

Answer:

triple beam balance

Explanation:

Hope this helped <3

Fill in the Punnett square below to visualize the offspring of a cystic fibrosis carrier and a person who doesn't have cystic fibrosis and isn't a carrier. Use F to denote the normal allele and f to denote the mutated CFR allele. What percentage of their children are likely to have cystic fibrosis? What percentage of their children are likely to be carriers of cystic fibrosis?

Answers

Answer:

50% of their children are likely to be carriers of cystic fibrosis

Explanation:

Since the normal allele "F" will be the dominant allele while the mutated CFR allele "f" will be the recessive allele, the gene (pair of alleles) of the person that is a CFR carrier will be "Ff" while that of the normal person who isn't a carrier will be "FF". The attachment shows the crossing between the two parents. From the illustration in the attachment, for every 4 children given birth to, 2 of them will likely be normal, "FF", (not a carrier and doesn't have cystic fibrosis) while 2 others will likely be carriers of cystic fibrosis (Ff). Hence, 50% of their children are likely to be carriers of cystic fibrosis.

please help i don’t get this :D

Answers

Answer:

The answer is

D. in the choroplast

Answer:

the answer is d, in the chloroplast

Which statement describes the effect that a DNA mutation most likely has on an organism?

Answers

Answer:

is it multiple choice?

Which alternating generation is pictured below?

(The image shows a fern plant)

Spores
Gametophyte
Sporophyte
Gametes

Answers

Answer:

Sporophyte

Explanation:

Answer:

nice Sporophyte plant :>

Explanation:

which of the following structures do all eukaryotic cells contain?

Answers

Answer:

A) A nucleus

Explanation:

Nucleus is the structure that all eukaryotic cells contain as represented by the diagram. Nucleus is present inside the cell and located in the center of the cell.

What is nucleus?

Nucleus is defined as a membrane that is enclosed cell organelle inside a cell and it contain chromosome.The main function of nucleus is to regulate and controls the activities of the cell. It is also known as brain of the cell as it regulates and controls all the function of the cell.

The structure of nucleus is that it contains a structures such as nuclear envelope, nucleoplasm, or it is also known as nucleus sap or nuclear matrix, nucleolus and chromatin.

Nucleus stores the DNA of the cell and maintain its integrity, and provide it for the process of transcription, traslation and replication.

The nucleus contain nucleolus and the region is black and chromosomes have beeds like structure on them and they are known as genes that helps to pass a particular character from one generation to other generation.

Therefore, Nucleus is the structure that all eukaryotic cells contain as represented by the diagram. Nucleus is present inside the cell and located in the center of the cell.

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If a virus gets past your fist line of defense then your second line
of defense kicks in. Describe one of your second line defenses.

Answers

The second line of defense is a group of cells, tissues and organs that work together to protect the body. This is the immune system.

Tyrone slipped and fell on his gluteal region. Which area of his body did he injure?
1. the shoulder blade
2. the lower back
3. the buttocks
4. the groin

Answers

Answer:

the buttocks

Explanation:

the glutes are your behind.

C. The Buttocks

Gluteal=Buttocks

Elderly people fear dependency because
they lose their independence,
b. their status in society changes.
it necessitates new role behaviors.
all of the above
d.

Answers

I would say the answer is D

I hope this helps :)

According to the question, Elderly people fear dependency because all of the above.

What are old people worried about?

Fear of losing independence as they grow older is a key concern across the ages. whether that could mean losing memory, being in poor health or not having financial security.

Thus, option "D" is correct.

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State the relationship between particle size and porosity

helppp

Answers

Answer:

The shape and size of the particles affect the way that they pack together in a certain amount of space, which affects a rock's porosity. ... But rocks change over time. When enough pressure, or force, is put on a rock, the pressure can make the rock pack its particles closer together.

Explanation:

I looked it up on google.

Answer:

the larger the particles the harder it is to pack the atoms together, however with the help from exterior forces they can be forced together.

Explanation:

I'm Katie, can someone help me? will mark brainliest In a negative feedback loop, the initial signal is:

Question 15 options:

remains unchanged


canceled out


amplified to a climax

Answers

Answer:

B, or Canceled out.

Explanation:

In a negative feedback loop, the product of the loop inhibits whatever initiated the loop, preventing more product from being formed. This is in contrast to a positive feedback loop, where the product of the loop further stimulates whatever initiated the loop, resulting in even more product being formed. :)

Answer:

Explanation:

In a negative feedback loop, the product of the loop inhibits whatever initiated the loop, preventing more product from being formed.

This is in contrast to a positive feedback loop, where the product of the loop further stimulates whatever initiated the loop, resulting in even more product being formed.

Help me pleaseeee I’ll be thankfulll

Answers

The answer is b hope this helps

Study the image above. Which of the following should you place on the line labeled "A"?

Answers

Answer:

Made up of the House and Senate

Explanation:

Because of high increases in populations, some underdeveloped countries are already exceeding their carrying capacity. They cannot produce enough food to support their populations. These regions are undergoing very rapid desert formation. Growing populations contribute to this by clearing forests for agriculture and firewood. Which region in the table is most likely experiencing desert formation? Explain.

Hint: Think about where the population is increasing the most quickly. ​

Answers

Answer:

Africa is most likely experiencing desert formation because it's annual growth rate is the highest of them all.

In the given scenario, Africa is most likely experiencing desert formation as it is having highest growth rate percent.

What is growth rate?

The average annual rate of change in population size for a given country, territory, or geographic area over a given time period.

As the given regions are undergoing very rapid desert formation, Africa would go through this process, as it is having highest growth rate.

Thus, the answer is Africa.

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Animal cells and plant cells both contain cell membranes that surround the outside of the cell. Plant cells have an additional outside layer, the cell wall.Select the statement(s) below that explain(s) why plants have the additional outer layer protection.Select ALL that apply.
A. The cell wall solely controls what enters and leaves the cell.
B. The cell wall provides structure for the plant, which allows it to grow up and out to absorb sunlight.
C. The cell wall is flexible and controls what enters and leaves the cell.
D. The cell wall is rigid and firm, limiting the cell shape.

Answers

Answer:

B

Explanation:

The cell wall provides structure for the plant, which allows it to grow up and out to absorb sunlight.

The repeated unit of DNA, made up of a sugar, phosphate, and
nitrogenous base, is known as a - *
nucleotide.
double helix
adenine.
thymine.

Answers

Your answer is nucleotide. A nucleotide is made up of sugar, phosphate, and a nitrogenous base.

Cell theory states that
A) All cells have nuclei that contain genetic information
B) All cells regenerate and have the same structures.
C) living organisms are composed of cells that come from preexisting cells.
D) organisms that don't have certain organelles reproduce by binary fission

Answers

Answer:

C

Explanation:

Theodor Schwann was the originator of Cell Theroy

what would most likely occur during the formation of rocks.

Answers

Answer:

Solidifications of molten materials.

what does charge in science mean? be specific ​

Answers

Answer:

google

Explanation:

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative (commonly carried by protons and electrons respectively). Like charges repel each other and unlike charges attract each other.

Answer known as electric charge, electrical charge, or electrostatic charge and symbolized q, is a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons

Explanation:

known as electric charge, electrical charge, or electrostatic charge and symbolized q, is a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons

Process by which bacteria converts nitrates into nitrogen gas​

Answers

that’s the definition of denitrification

what is the full form of UV rays?​

Answers

Answer:

UV radiation: Ultraviolet radiation. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer. UV radiation is made up of three types of rays -- ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC).

Explanation:

What are sound waves

Answers

Answer:

Sound is a mechanical wave that results from the back and forth vibration of the particles of the medium through which the sound wave is moving. The motion of the particles is parallel (and anti-parallel) to the direction of the energy transport. This is what characterizes sound waves in air as longitudinal waves.

Answer:

Sounds waves are a type of energy that is manipulated by vibrant energy. Different variations of vibrant energy allows us to hear different sounds.

Explanation:

Or, if you're talking about the Decepticon Soundwave, he's awesome.

Why the tropical forest has a more lush plant life than the tundra in regards to how fast things decompose.

Answers

Answer:

Because of Nitrogen

Explanation:

Nitrogen seems to be much difficult for plants to acquire because they can only consume nitrogen when it is combined with oxygen or hydrogen, which is why tropical forests have a lusher plant growth than tundra.The decomposition process is the secret to maintaining the nitrogen cycle going since the bulk of fixed nitrogen arrives from decaying organisms and faces being broken down by bacteria.

What is the difference between velocity and acceleration?
A. Acceleration only occurs when speed changes.
B. Velocity is speed in a certain direction. Acceleration is a change in velocity.
C. Velocity tells the amount of acceleration an object is experiencing.
D.Velocity is a change in acceleration. Acceleration is velocity in a certain direction.

Answers

Answer:

B

Explanation:

What do igneous rocks that undergo weathering and erosion become?

Answers

Answer:

When igneous rocks undergo weathering and erosion, they are broken into smaller pieces of sediment. Sediment is naturally occurring particles of rock

Explanation:

What type of organism is an Autotroph?

Answers

Answer:

Explanation:

An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.

How can an abiotic factor like temperature impact the population size of an ecosystem

Answers

Answer/Explanation:

Abiotic factors are non-living factors such as temperature, light, water, humidity, acidity, etc.

They strongly impact the ability of organisms to grow and successfully reproduce, and therefore affect the diversity of organisms in any given area.

If the temperature, light, and water availability (for example) are optimal, then species of plants will be able to grow successfully. This increases their populatuion size. Not only that, but it also provides a greater food supply for the animals that eat the plants, so their population will also grow.

Describe two pathways the student can use to show how a metamorphic rock
could become another type of rock and then become metamorphic once again

Answers

Answer:

In order for a metamorphic rock to become a sedimentary rock, the rock must undergo erosion. Once the rock has eroded, it will produce rock fragments or sediments which accumulate to form a sedimentary rock. ... In turn, when igneous and sedimentary rocks are exposed to heat and pressure, the rocks become metamorphic.

Explanation:

hope this helps

Answer:

One pathway is that an igneous rock can apply heat and pressure to the rock which will become metamorphic. Another pathway is that a metamorphic rock can be changed by heat and pressure to form into a different metamorphic rock.

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Mariane buys 16 bags of potting soil for her father that comes in 3/4 pound bags. Part 1 How many pounds of potting soil does Marianne buy? Use the drop downs to put the correct number into the box to complete the statement. If Marianne's father calls and says he needs 15 pounds of potting soil, how many additional bags should she buy? Use the drop downs to put the correct number into the box to complete the statement. Tobias found a rock that has a mass of 475kg. He placed it in 2000ml of water and the water rose to 2025ml. What is its density? What the answer please? How did the geographic location of Harappa affect trade? A. The city was isolated from trading opportunities B. The city was convenient for trading opportunities C. Flooding from monsoons created more trade routes D.Flooding from monsoons limited goods available for trade so what is the question Is d=(10)+(-20) d=10)(5 d=(-35)+( Analyze your results. Which type of liquid will prevent the apple from turning brown? What would be the main problem with reproduction if meiosis did not take place to form sex cells?A. The zygote would have two nuclei.B. Fertilization would result in a zygote with half as many chromosomes as the parents.C. Fertilization would result in a zygote with twice as many chromosomes as the parents.D. The zygote would have no nucleus. Simplify rational expression16 4y?3y2 12y + 128 + 4y3y 6Which values of y make the expression undefined? How do clastic sedimentary rocks form?Fragments of rock are squeezed and cemented together.Plant and animal remains are squeezed and cemented together.Solid chemicals in water harden and form rocks.Lava cools and hardens into rock. In the southern colonies in the 1600s, most people were followers of the How do ancient cultures shape modern society? Because the Earth is tilted on its rotational axis, both the Northern and Southern Hemispheres experience seasons. 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The Sophists held that whatever we do that is in our interest is for that reason just.a) True.b) False.TYPE EACH QUESTION NUMBER AND AN EXPLANATION OF THE REASONS FOR EACH OF YOUR 46 QUESTIONS. g=1/6(w+40) Please solve it quickly Which of the following statements best describes the reason for the conflict between white settlers and PlainsIndians?A. Women from the Plains tribes married and left with white settlers.B. White settlers were angered by the Plains tribes begin given reservations.C. Plains tribes were angered by white encroachment on their lands.D. 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Military innovations is dietary iron consumption especially important for reproductive-age females mention the opportunities that education creates for job