If the half-life of uranium-235 is 700 million years and you have 16 atoms of it, how many half-lives (700-million-year units of time) will pass before only 1 atom of uranium-235 is left?

A. 6
B. 7
C. 5
D. 4​

Answers

Answer 1

Answer: D

Explanation:


Related Questions

Symbiotic relationships are an important component of life. Which of the following relationships are most similar to the relationship between fleas and a dog?


Honeybees and a flower


Shark and a remora fish


Sea anemones and clownfish


Athlete’s-foot fungus and a human

Answers

Answer:

Athletes foot fungus and a human

Explanation:

Since the athletes foot fungus is a disease that a human contracts, it closely resembles the parasitic relationship between fleas and a dog

PLEASE HELP IF YOU UNDERSTAND PHYLOGENETIC TREES

Answers

Answer:

The answer is N

Explanation:

This is because it is the closest relative not an ancestor to L and is extinct as it is not at the present time mark. We know it is the closest relative as they have the same ancestor and were around at a very similar time mark.

PLEASE ANSWER THESE 3 QUESTIONS ASAP GIVING 23 POINTS AWAY!!!!!!!!!

Answers

Answer:

1.B   PLEASE ADD BRAINIEST

2.D

Which example of weather produces heavy winds, Humidity, and lots of rain?

A. Hall storm

B. Hurricane

C. Tsunami

D. Snowstorm

Answers

B: hurricane

Hope this helps

Answer:It B

Explanation:

PLZ HELP AS FAST AS YOU CAN!!!!!!!!!!!!!!!!
Which of these belong to the Phylum Arthropoda (Select all that reply.)
A. Butterflies
B. Lobsters
C. Spiders
D. Oysters

Answers

Answer:

Many familiar species belong to the phylum Arthropods—insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water. Arthropods are considered the most successful animals on Earth.

Explanation:

But the answer is spiders

Answer:

Its B and C.

Explanation:

Almost all animals belong in the Phylum Arthropoda.

What is the cell cycle

Answers

Answer:A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division.

Explanation:

A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division.

A cell cycle is when a cell is created of another cells then eventually has another one then the one before that dies out and it is a reproduction cycle.

The seasons we experience are caused by Earth's-

tilted axis and the Sun

tilted axis and size

orbit and distance from the Sun

orbit and distance from the Moon

Answers

Answer:

tilted axis and the sun

Explanation:

hope that is right :()))

Answer:

tilted axis and the sun

Explanation:

The controversy over the ivory-billed woodpecker has pitted those who want to build a massive irrigation project against environmentalists who want to stop the project to protect the woodpecker and other species. A biocentric species egalitarian would probably insist that the a. project be stopped to protect the ivory-billed woodpecker and all the other species of plants and animals. b. project be completed to maximize the welfare of humans. c. project be completed but with rigid safeguards to protect all sentient beings. d. project be curtailed (but not stopped) to promote the interests of humans and the ivory-billed woodpecker only.

Answers

ANSWER:

(A) project be stopped to protect the ivory-billed woodpecker and all the other species of plants and animals.

EXPLANATION:

Option A (project be stopped to protect the ivory-billed woodpecker and all the other species of plants and animals) is most appropriate for a biocentric species egalitarian, because it provides equal rights and support for all forms of life without being baised on favoring sentient animals (animals who can feel and can be emotional).

NOTE: Species egalitarianism is the philosophic view that all living things have the same moral right and support and all forms of life have intrinsic value.

What two body systems interact when blood filters through the kidneys for purification and the waste is removed

Answers

The kidneys ureters, bladder, and urethra make up the urinary system. They all work together to filter, store and remove liquid waste for your body. Hope this helps have a great day
Excretory and urinary system I believe.

Which Kingdom do I belong in? I am made of many cells and I have chlorophyll inside my chloroplasts.
animilia
plante
fungi
bacteria

Answers

Answer:

plante

Explanation:

Answer:

plante is correct

Explanation:

hope this helped

1. Solids have a definite volume and a definite shape
Group of answer choices

True

False

2. A mixture IS a pure substance
Group of answer choices

True

False

Answers

Answer:

1. True

2. False

Explanation:

Solids do have a definite volume and a definite shape

Mixture is an impure substance

Answer:

1. True, solids have both definite volume and shape

2. False, a mixture is not a pure substance

Should the power plant be built here? Why or why not?

Answers

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

I believe power plants should not be built here because it is one of the major contributors of nuclear wastes in the world. We already have enough problems.

Hope it helps.

Have a nice day hyung/noona.  ̄▽ ̄❤️

A student breeds a population of flowers with two alleles, red and white. Over time, the white allele, q, decreases in frequency. She plots the frequency of this allele found in her population in the graph below. Assuming that Hardy-Weinberg equilibrium holds, what is the frequency of heterozygotes in generation 6?

Answers

Answer:

PLZ READ THIS FOR YOUR SAFTEY

Explanation:

PEOPLE HAVE ON BRAINLY HAVE BEEN PASSING OUT SHORT LINKS THAT CAN HACK YOUR ACCOUNT, DO NOT CLICK ON THE LINK AND REPORT THE ANSWER/COMMENT OR WHATEVER IT IS

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The frequency of heterozygous in generation 6 is 0.32.

What do you mean by Population?

A population may be defined as the members of the same species living in a particular area at a given time.

It is clearly given in the graph that the frequency of recessive allele q in generation 6 is 0.2. Hence, the frequency of dominant allele P is 1-0.2 = 0.8.

The frequency of heterozygous will be 2Pq = 2 × 0.8 × 0.2 = 0.32

Therefore, the frequency of heterozygous in generation 6 is 0.32.

To learn more about Hardy-Weinberg genetic equilibrium, refer to the link:

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Which of the following is one goal for creating transgenic organisms?

Answers

To treat and/or cure diseases

What are transgenic animals?

Transgenic animals are animals (most commonly mice) that have had a foreign gene deliberately inserted into their genome. Such animals are most commonly created by the microinjection of DNA into the pronuclei of a fertilized egg which is subsequently implanted into the oviduct of a pseudo regnant surrogate mother.

What are the uses of transgenic animals?

Applications of animal transgenesis is to obtain information on gene function and regulation as well as on human diseases and to obtain high value products to be used for human therapy.

To learn more about transgenic animals here

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Metals and minerals accumulate in specific regions on Earth due to _______ activity and as part of the rock cycle. When sustainable yield is achieved, the rate of replenishment is equal to the rate at which the resource is harvested. This means that the resource can be harvested _______. Plate motion can create the proper temperature and _______ underground for hydrocarbons to release from kerogen.

Answers

Answer: volcanic

indefinitely

pressure

Explanation:

It should be noted that metals and minerals are regarded as non renewable resources which implies that they cannot be replenished.

They accumulate as a result of volcanic activities which takes place in the Earth. The resources can be harvested indefinitely when there is achievement of the sustainable yield. Plate motion can then create the proper temperature and pressure underground that is required for the hydrocarbons to release from kerogen.

Answer:

1. Non-renewable

2. Volcanic

3. Indefinitely

4. Pressure

5. Metals are found in rocks and can be moved by erosion and rainfall. these processes carry metal away from weathered rock, causing metals to accumulate in sediments, rivers, and streams.

Explanation:

From Penn

The fossil remains of an ancient plant are present in a rock as shown below. the rock is most likely: igneous metamorphic crystallized sedimentary

Answers

They are most likely sedimentary rocks

For a certain breed of cat, short tails are dominant (1) and long tails are
recessive (1). The Punnett square below shows a cross between two parents,
What is the phenotype ratio for this cross?
T
t
Tt to
TE
A 4 long. O short
B. 2 long, 2 short
C. 3 long, 1 short
D. I long, 3 short

Answers

The phenotype ratio for the cross would be 1 long:3 short.

Phenotypes

This refers to the physical expression of genes.

Let us assume that the allele for short tail is T while that of long tail is t.

Since short tails are dominant over long tails, any genotype with T will always be expressed as short tail.

Thus, TT and 2Tt will have short tails while only tt will have a long tail, making a ratio of 3:1.

More on phenotypes can be found here: https://brainly.com/question/20730322

2)List the processes that add carbon dioxide to the air.


•​

Answers

Answer:

When organisms breathe or decompose (decay), carbonate rocks weather, forest fires occur, and volcanoes erupt, carbon dioxide is released into the atmosphere naturally. Human activities such as the burning of fossil fuels and trees, as well as the manufacture of cement, contribute carbon dioxide to the atmosphere.

Explanation:

which of the following would you expect to see in a positive feedback system


a reduction output

a magnification of output

a stabilization of output

a movement toward equilibrium ​

Answers

Answer:

a magnification of output

Answer:

a magnification of output

Explanation:

just took test

5)
Many scientists believe that the earliest cells on Earth were relatively simple, lacking nuclear
membranes and other organized cellular structures. Over time, more complex cells
developed from these simple cells.
These statements describe the concept of
A)
evolution
B)
dominance
C)
use and disuse

Answers

The answer is A) evolution
The answer is A. Evolution

What is blood type an example of

Answers

Answer:

blood is a type of connective tissue

Explanation:

3. Blood types: House elves have the same basic blood
types that human have; A,B, AB and O.

a. If a male house elf with blood type o has children with a female house elf
who is blood type
AB, what will the phenotypic ratios of their offspring be? (show your work).

b. A male house elf with blood type A (but whose mother was blood type O) has
children with a female elf who is type B (whose mother was type A and whose father
was type AB). What percentage of their offspring should be blood type B?

c. Dobby is blood type A and Harry Potter is blood type AB. Is it possible for Dobby to give
blood to his master? Can Harry give blood to Dobby? Explain.

Answers

Answer:

a. 1:1

b. 25%

c. Dobby can give blood to Harry, but Harry cannot give blood to Dobby.

Explanation:

a. Type O blood is recessive to type A blood and type B blood.      

     A    B

O  AO  BO

O  AO   BO

According to the Punnett square, 50% of the offspring will have the AO genotype and 50% will have the BO genotype (1/2=50%). This means 50% will have type A blood and 50% will have type B blood, as the alleles for type A and type B blood are dominant over the allele for type O blood.

b. The male house elf's genotype is AO. If his mother was type O, then she only had the type O alleles to pass down to him, so he had to inherit one. The female house elf's genotype is BO. Her mother had to have the genotype AO. This is the only way the female would have inherited type B blood. If her mother had the AA genotype, then she would've had type AA or AB blood.

     B    O

A  AB  AO

O  BO  OO

According to the Punnett square, their offspring have a 25% chance of displaying any of the four blood types (1/4=25%).

c. Dobby has type A blood and Harry has type AB blood. This means that Dobby can give blood to Harry, as Harry has A antigens. However, Harry cannot give to Dobby because Dobby doesn't have B antigens, so he would experience an incompatibility reaction.

Which of the following is not a reason that cells undergo mitosis

Answers

Answer:

What are the options to choose?

Bud you didn’t give the answers have a great day tho!!!


Which statements describe the energy in a food web? Select three options.

When an organism eats another organism, it loses energy.

Producers have the greatest amount of available energy.

Energy can follow many different paths.

When an organism eats another organism, it gains energy.

Producers have the least amount of available energy.

Energy always follows a single path.

Answers

When an organism eats another organism, it gains energy

Answer:

BCD!!!!!!!!!!!!!!!!!

Explanation:

Which process produces oxygen?

Answers

Answer: Photosynthesis

Based on our knowledge of word parts, what
substrate do you think the enzyme to break
down nucleic acids might be names?

Answers

The answer is catalysis

Using this list, write down two characteristics that differentiate a football from a basketball:
1.
2.

Answers

Football is also known as soccer game in these game there will be two teams and 11 players in the team.The team which that scores more goals will be the winner.

Basketball is played with two teams with five members in it .Basket Ball was the popular game .

I think these answers might help u

I hope it helps

Answer:

Football is also known as soccer game in these game there will be two teams and 11 players in the team.The team which that scores more goals will be the winner.Basketball is played with two teams with five members in it .Basket Ball was the popular game .

Explanation:

Hope this will help

True or false when thermal energy is added the tempature will increase execpt during a phase change is occuring?

Answers

Answer:

true. when the thermal energy of an object increase the temperature increases

how many positive charges are in the nucleus of a carbon atom

Answers

Neutral carbon-12 (or any carbon atom) has 6 electrons with a total negative charge of 6e- orbiting a nucleus with a total positive charge of 6e+, so that the total net charge is zero. The nucleus is made up of 6 protons, each with a positive charge of e+, and 6 neutrons, each with zero charge.

Some students at a middle school conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table above. Based on these observations, which sample is most likely a nonmetal?



A.
Sample 1

B.
Sample 2

C.
Sample 3

D.
Sample 4

Answers

Answer:

A

Explanation:

1. The colour is non metallic.

2. properties of metal solidness is not there, because of results of hammer experiment.

3. Physical consistency is not solid.

Etc.

From the given observations for the four samples, it can be inferred that sample A is a non-metal. This is because the given properties of sample A do not match the properties of metals. So correct option is option A.

How do metals differ from non-metals?

The properties of metals are different from non-metals. The properties of metals include a high melting point, high density, malleability, and ductility. The metals are shiny and are good conductors of heat and electricity. The metallic oxides are basic in nature

The non-metals have a relatively low melting point, and low density. They are not ductile or malleable as they are brittle. Non-metal has a dull appearance. They are bad or poor conductors of heat and electricity. The oxides of non-metal are acidic in nature.

To learn more about non-metals, refer to the link:

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