The graph below shows the number of radioactive atoms present in four radioactive materials at different time intervals. Graph showing the time in hours on x axis and the number of radioactive atoms present on y axis for four materials A, B, C, and D. Curve A is on the left of the graph with curve B on its right. Curve C is on the right of curve B and curve D is to the right of curve C. The slope of curve A is the greatest, the slope of curve B is lesser than the slope of curve A but greater than the slopes of curve C and curve D. The slope of curve C is lesser than the slopes of curve A and curve B, but greater than the slope of curve D. The slope of curve D is the least.

Answers

Answer 1

Answer:

Its not C I think it's B

Explanation:

I took the test and i guessed C and it was wrong but I think B makes the most sense.


Related Questions

If the membrane was completely permeable,the concentration inside the cell would be about the same as the outside. Give reason?​

Answers

If the cell membrane is permeable to some solute, this means the solute is free to move in or out of the cell, depending on its concentration gradient. The solute will move by diffusion from the area with high concentration to the area with low concentration. So if the concentration of this solute is higher outside of the cell compared to the inside, then it will move into the cell until its concentration is equal on both sides.

What phenotypes are possible for the turtles?

Answers

Answer:Reptile

Explanation:im not sure

The statement : On Earth, objects that are heavier than air will always fall toward the ground is the____ of gravity.


A. law


B. conclusion

C. theory

D. hypothesis

Answers

Answer:

a the law of gravity

On Earth, objects that are heavier than air will always fall toward the ground is the law of gravity.

What is  gravity?

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.it means object are heavier than air will always fall ground because of law of gravitation.

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describe how dna can be used to classify organisms

Answers

Scientists can use DNA sequences to help determine if they have discovered a new species. Scientists can also compare DNA sequences from different organisms and measure the number of changes (mutations) between them to infer if species are closely or distantly related.

Select the correct answer from each drop-down menu. the carrying capacity of a wildlife reserve is 570 individuals for a particular species of rodents. if the area of the reserve is extended, the carrying capacity is likely to . during the summer, a fatal disease began killing individuals. the carrying capacity of the reserve will therefore .

Answers

If during the summer, a fatal disease began to kill individuals. the carrying capacity of the reserve will therefore be increased.

What is carrying capacity?

The carrying capacity of an environment is the maximum population size of a biological species that the environment can sustain indefinitely, taking into account

foodhabitatwaterand other needs available in the environment.

With this information, we can conclude that if during the summer, a fatal disease began to kill individuals. the carrying capacity of the reserve will therefore be increased.

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The 1918 Influenza epidemic killed between 50 million and 100 million people worldwide. The epidemic happened near the end of World War I. More people died from the influenza epidemic than from the war. Which of the following explains why this virus was so deadly worldwide?

Answers

The following explains why this virus was so deadly worldwide was the cause of its worldly The 1918 Influenza epidemic killed among 50 million and a hundred million humans worldwide.

Which of the subsequent explains why this virus become so lethal worldwide?

In the United States, the flu's toll become a good deal lower: a 1. five percent decline in GDP and a 2.1 percentage drop in consumption. The decline in financial hobbies mixed with expanded inflation led to huge declines withinside the actual returns on shares and short-time period authorities bonds.

This become truly the case with the influenza pandemic of 1918-1919, which become one of the worst contagion crises withinside the records of humankind.

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Some resources are not readily available for conversion to energy. Which choice below would MOST likely limit the amount hydroelectricity that can be produce and used in the area?

A- Sunlight
B-Wind
C-water
D-biomass

Answers

The amount of water is MOST likely limit the amount hydroelectricity that can be produce and used in the area.

What is hydroelectricity?

Hydroelectricity is the electricity which is generated from the water.

Hydroelectricity converts the kinetic energy of moving water current to electrical energy in a dynamo.

Therefore, the amount of water is MOST likely limit the amount hydroelectricity that can be produce and used in the area.

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Hi! I need some help with this. (Btw ignore the crumbled paper, I was having a breakdown.) Thank you!!

Answers

Answer:

Explanation:

Answer:

Explanation:

1. Producers make their own food, so option C.

2. Consumers eat others cuz they can't make their own food, so option G.

3. Herbivores (like cows) eat producers (like grasses, plants etc.), thus option E.

4. Carnivores (like tigers) eat other consumers (like cows, deers, even baby tigers) so option H.

5. Omivores eat everything (plants or animals) like humans thus option J

6 Decomposers (like fungi) break down dead stuff so option A.

7 Biotic means living things, thus option F

8 Abiotic is non-living things, thus option B.

9 Mutualism means both animals benefit from helping each other out, option D.

10 Parasites (like leech) harm the host and benefit themselves, thus option i

11 Commensalism means one benefits but the other one is not benefit or harmed, option S

12  P

13 L

14 R

15 N

16 T

17 M

18 Q

19 K

20 O

Not 100% sure on 12, 18-20 but everything else should be right.

Mackenzie notices that her best friend can apply paint in a perfectly straight line on a ceramic pot. Mackenzie knows
that paint is hard to control at times, but she tries it anyway and ends up stroking a straight line on first try, just like her
best friend. Did Mackenzie successfully model her best friend's painting skills?
No, because she didn't ask her friend for help.
Yes, because she observed her friend and knew she could do better.
Yes, because she was able to draw a straight paint line just as her friend did.
No, because she didn't have to try more than once.

Answers

Answer: C. Yes, because she was able to draw a straight paint line just as her friend did.

Explanation: I hope that helps have a great day!!

The images stored on microfilm and microfiche are so large that they can be read without a microfilm or microfiche reader. Group of answer choices True False

Answers

The images stored on microfilm and microfiche cannot be read without a microfilm reader : i.e. statement in the question is False

What is a microfilm ?

A microfilm is film which contains photographic records stored in a small scale order than the natural scale of a graphic/printed matter. Images stored on microfilm and microfiche are so small that a microfilm or microfiche reader is required to read them.

Hence we can conclude that statement in the question is False.

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How do you think water can become polluted?

Answers

Ways water can get polluted :-

1) Factories near water bodies can release their emissions into water which in turn pollutes water

2) Farm lands chemicals can be swept towards water resource

3) water people litter in water bodies due to plastic, it becomes polluted

Hope this helps :)

Is there any type of ecological relationship between wolf and moose populations on Isle Royale? If not, explain why not. If so, what is the relationship?

USE CLAIM, EVIDENCE, AND REASONING​

Answers

The Prey-Predator relationship is the type of ecological relationship between wolf and moose populations on Isle Royale.

What do you mean by Ecological relationship?

The Ecological relationship may be defined as the interaction between the members of one species with respect to the members of the other in response to food, shelter, and space.  

Moose are herbivores and the prey of wolfs. It is clearly seen in the graph that when the population of wolves increases, the number of moose decreases. It states that wolfs feed on moose.

Therefore, the Prey-Predator relationship is the type of ecological relationship between wolf and moose populations on Isle Royale.

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2. Describe the role of the following in maintaining a constant body temperature in humans:
(c) The thyroid gland:

Answers

Answer:

The thyroid produces hormones that are able to influence how much the blood vessels dilate. In turn, this affects how much heat can escape the body.


Building proteins and DNA is the reason organisms need what substance?

Answers

Answer:

Nitrogen

Explanation:

All living organisms need nitrogen in order to build proteins and build DNA.

Some animals (most) get nitrogen by eating plants I believe.

Answer: Nitrogen


Explanation: all living organisms need nitrogen

A biologist has mixed the polysaccharide agarose with other components to create a gel.

Which choice best describes the next step in gel electrophoresis?

A.The mixture is poured into a special tray and allowed to cool and solidify.
B.An electric current is run through the gel.
C.The gel is placed in a box with positive and negative electrodes.
D.DNA samples are loaded into wells.

Answers

Answer:

a

Explanation:

n.a

Which of the following had the highest social hierarchy in Japanese culture during this time period?
A. Peasants and Artisans
B. Merchants
C. Samurai
D. Emperor

Answers

D. Emperor is the answer

Please Help I Need Help

Answers

Explanation:

symbitotic: close ecological relationship between two or more organisms that live in close contact

mutualism is a symbiotic relationship in which both organisms benefit;

parasitism is a symbiotic relationship in which one organism benefits while the other organism is harmed

commensalism one organism benefits, the other neither benefits nor is harmed

:commensalism: answers will vary; lesser long-nosed bat/saguaro cactus; human and pet dog

Mutulism: answers will vary, human and eyelash mite, clownfish.and sea anemone

parasitism answers will vary, caterpillar and wasp, human and tapeworm

How are green algae related to land plants? (Select all that apply.)

□ both have chlorophyll

□ both have a cell wall

□ both have chloroplasts

□ both have a nucleus​

Answers

Answer: Both have chlorophyll and both have chloroplasts

              Hope this helps you!!!

Answer:

Both have chlorophyll

Both have a cell wall

Both have chloroplasts

Both have a nucleus

Explanation:

(*) Sorry for my late answer but I hope this helps others that are looking for this.

100% in the test  ;)

2. What do humans require freshwater for and what will happen if we deplete freshwater resources?​

Answers

Answer:

We need freshwater for basic needs, such as bathing, and drinking. Withtout freshwater the world will die off, as we need water to survive. if we deplete the world will start losing water, therefore sending world into a panic.

Explanation:

Name the organelles.

Answers

Answer:

A: Nucleus

B: Cytoplasm

C: Vacuoles

D: Cell Membrane

E: Mitochondria

Explanation:

the potential source of land pollution in your locality​

Answers

Answer:

Littering

Explanation:

People dispose little anyhow and anywhere

What is the most important reason to control the conditions of an experiment?
Oto make the experiment easier to repeat
Oto reduce the amount of data that must be recorded
O because this is necessary for graphing the data
O because this is necessary for the data to be valid

Answers

Answer:

because this is necessary for the data to be valid

Explanation:

if we where to test how much light a plant needed to grow its best we cant water them differently because that eill also have a impact on a plants health and growth

What are Exxon-Valdez and Deepwater Horizon?
A. The new desalination plants in California to fight the drought.
B. The source of massive oil spills.
C. Solar energy companies set to end reliance on oil.

Answers

Exxon-Valdez and Deepwater Horizon were both responsible for massive oil spills.

Both the liver and kidneys are organs of the excretory system. how do the two organs work together to complete a task? a. the kidneys convert nitrogenous wastes into urea, and the liver filters urea from the blood. b. the kidneys filter urea from the blood to make urine, while the liver filters urea from blood to make lymph. c. the liver converts nitrogenous wastes into urea, and the kidneys filter urea from the blood. d. the liver filters urea from the blood and passes it to the kidneys, which eliminate the urea in urine.

Answers

Answer:

a.

Explanation:

The kidney converys Nitrogenous waste into urea, and the liver filters the urea from the blood.

2. Define chain reaction.

Answers

Answer:

a chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.

the self-sustaining fission reaction spread by neutrons which occurs in nuclear reactors and bombs.

a series of events, each caused by the previous one.

"an article in one publication sets off a chain reaction in the media"

Explanation:

The outermost layer of earth's atmosphere is
A.troposphere
B.startosphere
C.mesosphere
D.thermosphere​

Answers

Answer:

the answer is D. Thermosphere

Which act regulates the handling of
tailings from mining operations?
A. Endangered Species Act
B. Solid Waste Disposal Act
C. Occupational Health and Safety Act

Answers

Answer:

this is my answer The MMDR Act

Explanation:

this my explanation

The MMDR Act empowers the central government to issue directions to the State governments to ensure sustainable development and exploitation of minerals to reduce adverse air, ground, water and ambient noise impacts

Answer: B. Solid Waste Disposal Act

Explanation:

many marine organisms depend on upwelling to bring nutrients to surface. how might El Nino affect a fisherman's way of life

Answers

The upwelling of seawater refers to the rising up of the deeper and cold water towards the surface of the sea. This cold water is comprised of the valuable and essential nutrients and as they move upward, it provides these nutrients to the marine organisms.

What is El Nino?

El Nino is usually defined as the large-scale changes in the climate that occurs due to the interaction between the ocean and the atmosphere. It leads to the episodic rise in the temperature of the sea surface, which typically occurs in the central and the eastern part of the central Equatorial Pacific.

The occurrence of El Nino leads to the reduction of the upwelling of deep-sea cold water. During the time of this harsh climate, the fishes die or they sometimes migrate into some other places where they can obtain their food. Due to this, the fisherman cannot go fishing.

Thus, the occurrence of El Nino directly affects a fisherman's life.

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select the correct answer from each drop down menu

complete the sentence about sea floor spreading

seafloor spreading is caused by ___ (divergent, convergent, transform) boundaries and results in ___ (more continental land, mountains on land, mid ocean ridges)

Answers

Answer:

divergent,mid ocean ridges

Explanation:

the seafloor diverge from each other causing the land to go thinner and thinner and thinner and make an opening between the floors and continue to move away from each other until they touch a more firm land to be able to stop, then the mid ocean ridges come between the floors where inside there is water and on the side there are the ridges

The chart below shows some information about two scientists.
Name of
Details about scientist
Views about the solar system
scientist
Nicholaus
Studied Aristotle's theory of homocentric spheres and
Ptolemy's mechanism of epicycles
Suggested that Earth revolved around the
sun in spherical orbits
Copernicus
Johannes Kepler
Studied astronomy and incorporated religious beliefs into Suggested that the orbits of planets were
his works
elliptical
Which of these statements best explains why Copernicus and Kepler had different views about the solar system?
O They came from different cultures.
O They liked to disagree professionally.
O They had different goals and interests.
O They misinterpreted scientific facts and data.

Answers

The best statement that explains why Copernicus and Kepler had different views about the solar system is that they had different goals and interests, which is the third option, as Copernicus and Kepler had different perspectives on the solar system.

Copernicus, a Polish astronomer, was interested in the simplicity and elegance of the universe and sought to find a more accurate model of the solar system. He proposed that the sun, not the earth, was at the center of the solar system, which was a revolutionary idea at the time. On the other hand, Kepler, a German astronomer, was more focused on the mathematical and physical aspects of the solar system and used his observations of the planets to develop the laws of planetary motion.

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