70 POINTS Use the library and other reference materials to research the discovery of radioactivity and its current applications. Then, write a 500 word report on what you have learned. Be sure to include the contributions of French chemists Marie Curie and Pierre Curie and the medical uses of radiation.
Answer:
can I write an essay
Explanation:
On April 20, 1902, Marie and Curie with success isolate radioactive metallic element salts from the mineral uranium ore in their laboratory in Paris. In 1898, the Curies discovered the existence of the weather radium and metallic element in their analysis of pitchblende. One year once analytic radium, they might share the 1903 Nobel prize in physics with French soul A. Becquerel for his or her groundbreaking investigations of radioactivity.
Marie Curie was born Marie Sklodowska in Warsaw, Poland, in 1867. The girl of a physics teacher, she was a talented student and in 1891 visited study at the university in Paris. With highest honors, she received a degree in physical sciences in 1893 and in arithmetic in 1894. That year she met state capital Curie, a noted French man of science and chemist who had done vital add magnetism. Marie and Pierre married in 1895, marking the start of a scientific partnership that will accomplish world renown.
Can someone help me?
A model for how the solar system formed must explain
observations and reasoning. Identify each statement as
an example of an observation or reasoning. If a statement
is false or invalid, identify it as such.
a. Most of the mass of the solar system is in the sun.
b. The sun is composed primarily of hydrogen and
helium.
c. The sun formed more than 13.8 billion years ago when
the universe formed.
d. Most objects in the solar system orbit the sun in the
same direction.
e. If most of the mass of the solar system is in the sun
and the sun is mostly hydrogen and helium, then the
solar system must primarily be hydrogen and helium.
Answer:
The correct answer would be -
a. observation
b. observation
c. invalid
d. observation
e. reasoning
Explanation:
Any observation or statement form or generated by the understanding and nothing any event. The first statement is formed by observing the sun and the rest of the solar system and comparing its mass. The second and fourth statement is also observations made on fact or noticing the.
The fifth statement is reasoning as it deriving something from logic and fact. The third statement is invalid as the universe made before the sun.
⚠️Second time posting this⚠️
Geneticists use Punnett Squares to show all the possible outcomes of a genetic cross and to determine the probability of a particular outcome.
True
or
false
Answer:
True
Explanation:
Scientists only use punnet squares if they want to determine what the possible outcomes will be for the offspring.
Hope this helps, if it is wrong, I am sorry. T^T
Answer:
true
Explanation:
where are sugars stored in plants? I know that they are produced in leaves but i dont know where they are stored.
please help
Answer:
In the cytoplasm in different cell types
Answer:
The sugar produced by photosynthesis can be converted into the sugar glucose. Thousands of glucose molecules can be linked together to form the complex carbohydrate starch. Starch is stored inside plant cells as grains.
DNA strands run in 1 of 2 directions depending on which end of the strand is free and which end has a phosphate bond. One direction is 5' to 3' (__________) and the other direction is 3' to 5' (downstream). __________ polymerase binds to the DNA at the TATA box and unzips the double helix. Working along the DNA chain, RNA polymerase reads the DNA nitrogenous bases and matches RNA nitrogenous bases from the nucleus (uracil instead of thymine). As it moves, RNA polymerase re-zips the DNA behind it and lets the mRNA separate from the DNA. It continues to do this until it reaches a sequence downstream called a __________ signal. In other words, RNA polymerase copies the DNA sequence downstream of the TATA box into an mRNA strand.
Answer:
The answers in the blank spaces:
1. Upstream
2. RNA
3. Terminator
Explanation:
This question is describing the process of transcription, which is the process whereby DNA template is used to synthesize an mRNA molecule. Transcription involves three stages viz: initiation, elongation and termination.
- DNA strands run in 1 of 2 directions depending on which end of the strand is free and which end has a phosphate bond. One direction is 5' to 3' (UPSTREAM) and the other direction is 3' to 5' (downstream). An enzyme called RNA polymerase binds to the DNA at the TATA box and unzips the double helix (INITIATION).
- Working along the DNA chain, RNA polymerase reads the DNA nitrogenous bases and matches RNA nitrogenous bases from the nucleus (uracil instead of thymine). As it moves, RNA polymerase re-zips the DNA behind it and lets the mRNA separate from the DNA (ELONGATION).
- It continues to do this until it reaches a sequence downstream called a TERMINATOR signal (TERMINATION). In other words, RNA polymerase copies the DNA sequence downstream of the TATA box into an mRNA strand.
A forest fire will effect which Earth system?
Answer:
geosphere
Explanation:
Answer:
Look down!! ;)
Explanation:
Pollutants produced from the burning such as CO2 will enter the atmosphere. The geosphere could be affected due to the intense heat can cause rocks to break apart/ erosion. The biosphere is greatly impacted from the fire. Vegetation is killed which in return negatively impacts the wildlife in the forest.
Hope this help!! ;)
Which of the following describes exploratory analysis?
Answer:
what are the options but the answer is exploratory data analysis is an approach to analyzing data sets to summarize their main characteristics
Which of the following processes cycles matter through different parts of an ecosystem?
More than one answer may be correct.
1. the nitrogen cycle
2. the water cycle
3. the carbon cycle
Answer:
the nitrogen cycle, the water cycle, and the carbon cycle
Explanation:
The water, carbon, and nitrogen cycles move nutrients through the different parts of an ecosystem. Water moves through organisms and the environment in different phases. Carbon moves through an ecosystem in carbon dioxide, minerals, and organic compounds. Nitrogen moves through an ecosystem in nitrogen gas, ammonium, nitrates, and organic compounds.
The biogeochemical cycle is a pathway that circulates the chemicals through the abiotic and the biotic factor. The nitrogen, water, and carbon cycle through various regions of an ecosystem.
What is a biogeochemical cycle?The biogeochemical cycle is the movement of the chemicals and compounds of carbon, nitrogen, and water in the biosphere (biotic) and the atmosphere, lithosphere, and hydrosphere (abiotic) spheres of the earth.
These cycles move the nutrient through different spheres in the form of inorganic and organic compounds. It is an essential part of the ecosystem as they regulate the flow of the natural elements.
Therefore, option 1. nitrogen cycle, option 2. water cycle, and option 3. carbon cycle move through various parts of an ecosystem.
Learn more about biogeochemical cycles here:
https://brainly.com/question/1204069
#SPJ2
How will antibiotic resistance affect human populations if no action is
taken by our agricultural system?
Answer:
Explanation:
Antibiotic resistance is when the bacteria develop resistance to antibiotics. Antibiotic resistance will affect human populations is no action is taken by our Agricultural system because bacteria itself develop antibiotics resistance and these causes infections on humans and animals. The infections caused by antibiotics resistance bacteria are difficult to treat than those that are not caused by it. These the result in higher cost of medical treatment and treatment of animals, prolonged hospital admission and these can also lead to increased mortality or increase rate of death of Agricultural animals. When there is high mortality of Agricultural products due to this, there won't be enough consumption of these by humans and also there can be passage of these infections to human which can result to mortality.
first one to answer gets brain
Answer:
I believe the printing press
Explanation:
the printing press was invented around 1440
What order allows animals to get usable fuel from the sun? multiple chose
1.sun, consumer, producer
2.producer, consumer, sun
3.sun, producers, consumers
4.producers, sun, consumers
Answer:
3. Sun, producers, consumers
Explanation:
Energy from the sun shines upon a producer. The producer then photosynthesizes and converts the sun's energy into fuel for itself. If a consumer happens to eat the producer, it will absorb its energy.
When is carbon dioxide released during aerobic cellular respiration?
Answer:
I hope this helps and rate it if its right
Explanation:
I hope this helps and rate it if its right
Please help As fast as you can!
(Brainliest) Fusion is a nuclear reaction where small nuclei join together and release energy.
Group of answer choices
True
False
Answer:
it's true
Explanation:
i searched it up
how does the respiratory and digestive system work together to maintain homeostasis
The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.
HOPE IT HLPS UH WELL✌✌Please help I will mark brainliest
Its b
Mark me brainliest
Explanation:
Answer:
B
Explanation:
because I already did that
The image below shows plant cells.
What feature of cells is best demonstrated in the image?
OA Cells are the basic units of structure and make up tissues.
OB. All organisms are made up of a large number of cells.
OC. All organisms have cells with different shapes and functions.
OD. Cells are formed from other cells within the same tissue.
2021 Edmentum. All rights reserved.
The freezing point of a mixture of water and salt is
A. higher than that of pure water
B. the same as that of pure water
C. lower than that of pure water
D. none of the above
Answer:
lower
Explanation:
salt makes thing freeze faster
Answer:
A
Explanation:
Because when you mix a mixture and pure substances it’s higher
The recessive gene for blood typing s...
Type O
Type A
Type B
Type AB
Answer:
Image result for what is The recessive gene for blood typing
Because A is dominant, that means your mother could carry a hidden O. If she does then when she gets pregnant, each child has a 50% chance of getting her dominant A and a 50% chance of getting her hidden, recessive O. If the child gets the O from mom and an O from dad, he or she will have an O blood type.
Explanation:
Brainliest if right?
PLEASE SEE THE IMAGE BELONG I DONT KNOWWWWWW PLEASE
Answer:
Black
Black
White
Explanation:
the capital letter represents the black fur since it's dominant and the recessive shows when there are no dominant traits in the mix
Answer:
black black white.
Explanation:
capital letters mean black
Which are the following statements are TRUE when concerning cells?
A: Prokaryotic cells can only produce eukaryotic cells
B:All cells come from pre-existing cells
C:Cells must always reproduce with other cells
D:Plant cells can only reproduce with animal cells
Answer:
I think it will option b hope it helps
In what ways is the composition of the sun different from the Earth? Choose all that apply.
The Sun does not have continents.
O The Sun has a thick, solid core.
O The Sun does not have a solid surface
The Sun does not have a solid core.
The Sun has continents known as plasma zones.
Answer:
1,3,4
that's my answerrrr
(GIVING BRAINLIEST) ______________ energy is the total potential and kinetic energy of particles in an object.
Group of answer choices
Chemical
Nuclear
Thermal
Answer:
Thermal
Explanation:
The total kinetic and potential energy of the particles in an object is called thermal energy.
:-) :-) :-) :-) :-) :-) :-) :-) :-)
Please help
Answer:
B
Explanation:
sorry if im wrong!!!
Could someone please help me and thank you it’s timed!!
Answer:
d negative feedback
Explanation:
thirst is associated with negative feedback
What common North Carolina geological feature is pictured in the graphic below?
Answer:
the awnser is A river basin
Explanation:
because I'm smart just trust me m8
The common North Carolina geological feature is pictured in the graphic below is river basin. Thus option A is correct.
What is river basin?River basin is defined as the amount of land over which surface run-off falls into the sea via streams, rivers, and lakes.
A drainage basin is defined as a section of land where all flowing surface water flows to a single place, such as a river mouth, or into another body of water.
River basin is also defined as an ecological phrase referring to the area of land surrounding a river from which all water drains.
It is the land area drained by a river and its tributaries
Thus, the common North Carolina geological feature is pictured in the graphic below is river basin. Thus option A is correct.
To learn more about river basin, refer to the link below:
https://brainly.com/question/18914732
#SPJ6
What do you call protozoa that you can see with the naked eye?
Answer:
Paramecium protozoa
Explanation:
because of their size (50-300 μ long) and the human eye can see things as small as about 100 µm and P.
If you have 2.0 moles of magnesium how many atoms of magnesium do you have?
Answer:
6.02E+23 atoms
Explanation:
help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
I think that it is the first one.
Deposition will build up the surface of the beach, and erosion will break down the surface of the beach.