Answer:
Most life would cease to exist
Explanation:
Answer:
The fish in the water would die and the fish that we fish for would make use sick ,ect....
Silver has two naturally occurring isotopes. Ag-107 has an abundance of 51.82% and a mass of 106.9 amu. Ag-109 has a relative abundance of 48.18% and a mass of 108.9 amu. Calculate the atomic mass of Silver.
Answer:
The atomic mass of silver is 107.86 amu
Explanation:
The atomic mass is calculated by formula
Atomic mass = (Mass of first isotope x Abundance of first isotope) + (Mass of Second isotope x Abundance of second isotope)
In case of silver, the formula will be as
Atomic mass = (Mass of Ag-107 x Abundance Ag-107) + (Mass of Ag-109 x Abundance Ag-109)
Mass of Ag- 107 = 106.9
Mass of Ag- 109 = 108.9
Abundance of Ag-107 = 51.82/100 = 0.5182
Abundance of Ag-109 = 48.18/100 = 0.4818
Putting these values in the formula
Atomic mass of silver = (106.9 x 0.5812) + (108.9 x 0.4818) = 107.86 amu
To calculate the average atomic mass of silver, the masses of its isotopes are multiplied by their relative abundances and summed up, resulting in an atomic mass of 107.841428 amu.
Explanation:The average atomic mass of an element can be calculated by taking the weighted average of the masses of its naturally occurring isotopes, based on their relative abundances. For silver, we have two isotopes: Ag-107 with a mass of 106.9 amu and an abundance of 51.82%, and Ag-109 with a mass of 108.9 amu and an abundance of 48.18%. To find the atomic mass of silver, we perform the following calculation:
Atomic mass = (Percentage abundance of Ag-107 × Mass of Ag-107) + (Percentage abundance of Ag-109 × Mass of Ag-109)
Atomic mass = (0.5182 × 106.9 amu) + (0.4818 × 108.9 amu)
Atomic mass = 55.359866 amu + 52.481562 amu
Atomic mass = 107.841428 amu
Therefore, the average atomic mass of silver is 107.841428 amu.
There are approximately 200 different types of cells in the human body although all cells are dependent on other cells to perform body functions. Explain how your model supports this statement
Answer:
Group of cells construct the organs of human body which helps our body to function properly.
Explanation:
All living things are made up of cells. Human body is constituted of approximately 200 cells. Not every cell functions equally. Different cells function differently. However, the cells which has the same work to do they combine to form tissues, and groups of cell constructs human organs like heart, lungs etc. which functions together to control the body.
So it can be said that though not directly but cells are indirectly dependent on each other to perform body function.
Answer:
The model shows that some cells make substances such as proteins for other cells to use and support their functions. So, the model shows that each particular type of cell relies on other cells to support all the functions in the human body.
which of these groups is the smallest level of classification
A. Phylum
B. Family
C. Order
D. Genus
Answer: Number D. Genus
Explanation:
Answer:
D. Genus
Explanation:
This is the smallest classification level because of all those named it is the one that covers the least organisms. This taxonomic level is between the level of species and family, that is, it covers only several related species. In order from largest to smallest the levels of organization are domain, kingdom, phylum, class, order, family, gender and species
Cell Parts and Functions
Select the correct cell parts listed below to fill the blanks of the sentences or spaces that follow
cell membrane
cell wall
mitochondria
nuclear envelope
cytoplasm
nucleolus
vacuole
centriole
Golgi apparatus
lysosomes
ribosomes
chloroplast
smooth ER
nucleus
1. The
is the place where genes (DNA instructions for traits) are stored._____
2. The rough endoplasmic reticulum is studded with ribosomes and functions in the production of protein,
whereas the
functions in the synthesis of lipids and detoxification of harmful
substances._____
3. Structures normally found in animal cells that are involved in animal cell reproduction (aka, cell division)._____
4. Involved in making ribosomes in the cell, this structure is located in the nucleus._____
5. The structure is the outer covering of a cell and is involved in regulating the movement of materials (food,
gases, elements) in and out of the cell._____
6. Cellular respiration occurs in this organelle. Cellular respiration produces ATP for cell activities.
Therefore, the
is sometimes called the powerhouse of the cell."_____
7. The double membrane surrounding the nucleus that controls what enters and leaves it through nuclear
pores) is called the nuclear membrane or_____
8. Vesicles that contain digestive enzymes are_____
9. Outside the cell membrane of a plant cell is the
that also serves as
support and protection for the cell._____
10. Enzymes are proteins, and proteins are produced in this organelle_____
11. Sacs storing water, wastes and food are storage chambers in the cell called_____
12. Structure found in plants, but not animal cells, that carries out photosynthesis is the_____
13. The
is everything outside the nuclear membrane but inside the cell membrane
including the cytosol and structures within the cytosol._____
14. The structure of the cell that prepares and packages proteins for use within the cell for shipment outside
the cell._____
Answer:1 = nucleus,2= smooth endoplasmic reticulum,3=centrioles,4=nucleolus,5= cell membrane,6=mitochondria,7= nuclear envelope,8= lysosomes,9= cell wall,10= ribosomes,11= vacuole,12= chloroplast,13= cytoplasm and 14= Golgi apparatus
Explanation:
Review the following DNA sequences .
Original DNA Sequence: ATTGCTAAGTCA
Mutated DNA Sequence: ATTGATAAGTCA
Which type of mutation occurred ?
A) insertion
B) there is no mutation
C) substitution
D) deletion
Answer:
C) Substitution
Explanation:
C has been substituded by A from the DNA sequence so it is Substitution mutation.
Substitution mutation is shown in the ATTGATAAGTCA, DNA sequence.
The correct option is C.
What is mutation?Mutation is the changing in DNA or chromosome which cause genetic change in an organism.
Mutation sometimes leads to death.
In the given sequence
Original DNA Sequence: ATTGCTAAGTCA
Mutated DNA Sequence: ATTGATAAGTCA
The C is substituted or replaced by A
Thus, it is a substitution mutation. The correct option is C, substitution.
Learn more about mutation, here:
https://brainly.com/question/17106056
Which of the following best describes a nuclear fusion reaction?
a reaction that forms chemical bonds
a reaction that breaks chemical bonds
a reaction that joins the nuclei of two atorns into one
a reaction that splits the nucleus of an atom into two
LATINU
ISK OP UP
Answer:
A reaction that joins the nuclei of two atoms into one
Explanation:
Think of the words "nuclear fusion".
Nuclear = "relating to a nucleus"
Fusion = "joining"
So, nuclear fusion is the joining of two nuclei into one.
A and B are wrong, because chemical reactions involve electrons.
D is wrong, because the splitting of a nucleus is fission.
Final answer:
Nuclear fusion is the combination of light atomic nuclei to form a heavier nucleus, releasing energy, and it is the fundamental process that fuels stars.
Explanation:
Nuclear fusion is best described by option : a reaction that joins the nuclei of two atoms into one. This process involves two or more light atomic nuclei colliding at high speed and combining to form a heavier nucleus. Nuclear fusion releases energy when these light nuclei fuse to form medium-mass nuclei; this is the same process that powers stars like our Sun. The simplest example of this is the fusion of hydrogen isotopes to form helium in the proton-proton cycle, which happens at the extreme temperatures and pressures found in the core of stars.
A girl carried a box of books up two flights of stairs to her attic. Her father carried a box the same weight up a ladder directly to the attic. The girl says she did more work on the box than her father because she walked further up the stairs, is she correct?
Answer:
The girl is correct because her father only went the distance of the ladder, whereas she went to the extension of two flights of stairs.
Explanation:
The work done by the girl and her father is the same. The discrepancy arises from the difference in perceived effort, not actual work done. In physics, work done against gravity for the same weight over the same vertical distance is equal, regardless of the path taken.
Explanation:The question asked pertains to the concept of work in physics. According to the definition of work in physics, work is equal to the force applied to an object times the distance the object is moved in the direction of the force. The force in this scenario is the same, as the same weight box is being lifted. The distance is also the same (the vertical distance from the ground to the attic). Therefore, regardless of the path taken (flight of stairs or directly using a ladder), the work done is the same.
It might seem that more effort is required to carry the box up the stairs due to the longer path, however, this is likely due to the additional force required to fight against gravity while taking the longer route, but this doesn't constitute to additional work done in terms of physics. Work Done Against Gravity is the significant concept here. The energy changed from one form to another to overcome gravity remains the same in both cases
Learn more about Work and Energy here:https://brainly.com/question/17290830
#SPJ2
Which tool is most likely to be used to produce a clear image of very tiny structures inside a cell? a light microscope b electron microscope c magnetic resonance imaging d computer model
Electron microscope is most likely to be used to produce a clear image of very tiny structures inside a cell
Answer: B. Electron microscope
Explanation:
The electron microscope is a kind of magnifying instrument that utilises electrons to make a picture of the objective. It has a lot higher amplification or settling power than a typical light microscope. The tiny structures inside the cell are easily visible under the electron microscope.
The electron microscope can be scanning electron microscope or tunnelling electron microscope. Both the type of electron microscopes differ in function but uses electron as its source of illumination.
Which of the following was evidence cited by Alfred Wegener that the continents were once one large land mass he called Pangaea?
Similar fossils were found around the world
The ages, layers, and types of rocks on mountains in separated continents were the same
The shapes of the continents looked like they could fit together
All of the above
Answer:
D. All of the above.
Explanation:
Alfred Wegener was certain than continents were once gathered together in a gigantic landmass known as Pangaea.
To support this theory, he collected different pieces of evidence:
Fossil evidence: Wegener stated that various fossils from plants and animals that were found on separate continents were located there and nowhere else, which suggested that these continents were once joined. For instance, the fossils of a freshwater reptile known as Mesosaurus are found in both Southern Africa and Eastern Southern America. As it is unlikely for this animal to move between both continents, it is suggested that both continents were once joined.Ages, layers, and types of rocks: Wegener matched rocks from separated continents and realized that they matched like puzzle pieces. He stated that mountain ranges that are located on opposite sides of the Atlantic Ocean possess the same rock ages, types, and layers. The shapes of continents look like they fit together: Alfred Wegener also suggested that the shape of separated continents looked like they were once joined. In fact, in 1910, he wrote to his wife the following thought: "Doesn't the east coast of South America fit exactly against the west coast of Africa, as if they had once been joined?"In an investigation of the cycling of environmental gases, a
student placed water and bromthymol blue in each of four test
tubes as shown in the diagrams below. No additional items were
placed in tube 1, a snail was placed in tube 2, an aquatic plant
(elodea) was placed in tube 3, and both a snail and an elodea
were placed in tube 4. The tubes were then stoppered and placed
in bright light for 24 hours.
Tube 1 Tube 2 Tube 3 Tube 4
How would the solution in tube 3 change after 24 hours?
A) It would change from yellow to blue.
B) It would change from blue to brick red.
C) It would contain more oxygen.
D) It would contain less nitrogen.
Answer:
D) It would contain less nitrogen.
Explanation:
In an investigation of the cycling of environmental gases, a student placed water and bromthymol blue in each of four test tubes as shown in the diagrams below. No additional items were placed in tube 1, a snail was placed in tube 2, an aquatic plant (elodea) was placed in tube 3, and both a snail and an elodea were placed in tube 4. The tubes were then stoppered and placed in bright light for 24 hours. The solution in tube 3 changes after 24 hours because it would contain less nitrogen.
The dfferent tubes are shown in the picture that I uploaded.
The solution in tube 3 would likely change from yellow to blue, indicating it would contain more oxygen after 24 hours in bright light, due to the process of photosynthesis performed by the elodea plant.
C is correct
Explanation:When considering the change that would occur in tube 3 containing water, bromthymol blue, and an aquatic plant (elodea) after 24 hours in bright light, we must take into account the process of photosynthesis. The presence of the aquatic plant will lead to the consumption of carbon dioxide and the production of oxygen.
Since bromthymol blue is an indicator that turns yellow in the presence of an acid (like carbonic acid formed when CO2 dissolves in water) and blue in the presence of a base (fewer hydrogen ions present when CO2 is consumed), the expected change should be: It would contain more oxygen (answer choice C), implying more CO2 will be consumed and less carbonic acid will be present.
This means the solution in tube 3 would likely change from yellow to blue over time (answer choice A). However, the question specifically asks about the change in gas concentration, thus 'it would contain more oxygen' is the most accurate description of the expected change due to the activity of the elodea performing photosynthesis.
Learn more about Photosynthesis here:https://brainly.com/question/29764662
#SPJ3
What characteristics do all living things share
2. You consume a piece of candy that contains 150 glucose
molecules. Calculate the number of
1. carbon atoms you consumed:
Il hydrogen atoms you consumed:
ill. oxygen atoms you consumed:
When we consume a piece of candy we gain about 900 carbon atoms, 1800 hydrogen atoms and about 900 oxygen atoms.
Explanation:
The glucose molecule has a structure that contains 6 carbon atoms, 12 hydrogen atoms and about 6 oxygen atoms. The glucose is the only chemical that can go through the glycolysis, kerb cycle and the electron transport chain to yield ATP molecules.
This ATP molecules provide as a source of energy to the entire organism. The excess of glucose is stored in the form of glycogen in our body.
will mark brainliest
Answer:
The second one
Explanation:
As it says, there has been a rapid increase in global temperatures. Looking at the charts, we look at the year, then the temperature. In the first one, It goes from high, to higher, then to lower. So that one is incorrect. The third one, we start really high, then go lower. So that one is wrong. The last one starts high, then goes low, then high again. So that one is obviously wrong. The second one stars low, then goes higher. So, that one is the correct one. Does this help?
Answer:
I would go with option b while it is increasing at a more of a linear rate than exponential; it seems to be the only one really increasing.
define hydraphilic. which portion of the bilayer is hydrophilic?
Answer:
hydrophilic is when something has the tendency to mix with water or be wetted by it.
lipids and phospholipids are hydrophilic
285 in scientific notation would be
o 2.85 x 102
285.0
28.5 x 10
EESTE
285 x 103
12.8 x 10²
Answer:
[tex]2.85 \times {10}^{2}[/tex]
A(n) _____ bond joins these two oxygen atoms.
Answer:
Covalent bond
Explanation:
A scientist observes plant roots growing through the mountain side. This is evidence for which type of natural process?
Answer:The answer is erosion
Explanation:
A scientist observes plant roots growing through the mountain side. This is evidence of Weathering
Explanation:
Weathering is the breaking down of rocks, soil, minerals. Weathering happens in the same place silently not happening as a sudden slide caused by erosion. Weathering is the natural process that takes place in the mountains.
Roots of lichens are pushed between the rocks. These slowly let their roots grow through the rocks. Then they slowly produce crack in the rocks and splits it. This happens slowly and gradually that it causes withering of the rocks.
Which of the following is an inference instead of an observation? Please answer correctly and show how it's correct maybe
A. The squirrel is gathering acorns in his cheeks
B. The boat is sailing on the lake in circles
C. The sun is hot today as it shines down on us at the park
D. Deer walked down the path earlier because of the prints in the mud
Answer:
D
Explanation:
A, B, and C, are all observing the situations, while D states the deer walked down the path earlier because of the tracks, this is hardly obersavable, and you would have to infere the deer took the path early.
'Deer walked down the path earlier because of the prints in the mud' is an inference, not an observation, as it is a conclusion made based on the observed deer prints. The correct option is D.
Explanation:The answer to the question which statement is an inference rather than an observation is option D: 'Deer walked down the path earlier because of the prints in the mud.'
An observation refers to something that one directly sees, hears, or experiences, while an inference is a conclusion or assumption drawn from those observations. Options A, B and C are observations as they directly describe actions that are immediate and visible.
Option D, on the other hand, makes a prediction or inference about past events (deer walking) based on current observations (prints in the mud).
Learn more about Inference here:https://brainly.com/question/33136743
#SPJ2
based on the model of cellular transport, the hydrolysis of ATP and ADP provide a mechanism for
Answer:
B
Explanation:
They move against the gradient : this is coming directly from USAtestprep
Based on the model of cellular transport, the hydrolysis of ATP and ADP provides a mechanism for moving against the gradient.
What is active transport?Active transport is a type of cellular transport that involves the use of ATP to move substances across membranes.
Active transport can move substances and ions against a concentration gradient.Conversely, passive transport moves substances in favor of a concentration gradient.In conclusion, based on the model of cellular transport, the hydrolysis of ATP and ADP provides a mechanism for moving against the gradient.
Learn more in:
https://brainly.com/question/25802833
When Stephanie’s light bulb did not turn on after she wired a circuit board, she asked her brother to use the same procedure to see if he got the same results.
Which important step of scientific design is being modeled?
a. reevaluating
b. repetition
c. replication
d. revising
Answer:
Revising (D)
Explanation:
Answer:
d
Explanation:
i just got it right on the test
Which statements describe what will most likely occur when warm air cools and the temperature drops to the dew point? Check all that apply.
A) Clouds form.
B) Air becomes more humid.
C) Solid ice forms on leaves.
D) Cumulus clouds disappear.
E) Water droplets form on grass.
Answer:
The correct choices are A,C AND E.
Explanation:
The formation of clouds occurs when the warm air cools and the temperature drops to dew point. The dew point can be describes as the temperature which occurs when the air becomes saturated into water vapour. The air becomes cooler and when humidity of 100% is acquired, water droplets form which lead to the formation of clouds. The formation of clouds has always been known to occur when temperature drops to the dew point.
As the warm air cools, it also results in forming tiny water droplets on the grass especially in the morning times. This most likely happens when the day has been warm followed by a cold night. The water droplets formed on the grass are known as dew.
When air cools to the dew point, the moisture it holds condenses forming clouds and dew on grass surfaces. The air's humidity does not increase, rather, the relative humidity does. The process does not result in freezing nor make clouds disappear.
Explanation:When warm air cools and the temperature drops to the dew point, certain phenomena occurs. The dew point is the temperature at which the air cannot hold all the moisture in it and some of it condenses as water vapor, leading to the formation of small droplets. The statements A 'Clouds form' and E 'Water droplets form on grass' best describe what will most likely happen, since clouds are formed due to condensation of water vapor in the air, and dew forms on grass for the same reason. Statement B 'Air becomes more humid' could be misleading; while it's true that the relative humidity increases (since it is defined as the ratio of the actual amount of water vapor in the air to the maximum amount of water vapor the air could hold at that temperature), the actual amount of water vapor does not increase. Statements C 'Solid ice forms on leaves' and D 'Cumulus clouds disappear' are not accurate as cooling to the dew point results in condensation, not freezing, and this process tends to create, not dissipate clouds.
Learn more about Dew Point here:https://brainly.com/question/33345309
#SPJ6
which of these nutrients can be found in all organic compoumds
Answer: proteins and vitamins
Explanation:
The nutrients that contain carbon in their structural makeup are referred to as organic nutrients, whereas those that do not contain carbon are called inorganic nutrients. Therefore, the organic nutrients are carbohydrates, lipids, proteins and vitamins. These nutrients are important for energy.
Which of the following is NOT a major concept involved in the study of Earth Science?
a Earth's History
C Earth in the Solar System
b. The Structure of the Earth System
d. All are major concepts
Please select the best answer from the choices provided
Answer:
D
Explanation:
All are major concepts.
-Jarvis
A diagram showing limited variations of life developing from the creation model would appear as: a tree a forest of unique trees a tree with different branches
Answer:
a forest of unique trees
Answer:
The answer would be A Forest of Unique Trees
Hope this helps.
-Que
There’s a lot . I also need help
Can someone please help ASAP !
Answer:
A
Explanation:
When water has little energy, it cannot carry the load of sediment, so it is deposited
Answer:
Explanation:
yes
Which Is A Clue That A Chemical Change Has Occured?
A. A beaker suddenly becomes very warm when you mix two room-temperature liquids in it.
B. A liquid forms bubbles when it reaches a high temperature.
C. Water changes color when you add food coloring to it.
D. A car door feels hot if you touch it on a summer afternoon.
Answer: A
Explanation:
B: That’s boiling
C: That’s physical.
D: That’s just heat being added.
It’s A because two liquids making one warmer liquid isn’t natural without a chemical making it do so.
Chemical change has occur in A beaker suddenly becomes very warm when you mix two room-temperature liquids in it.
What is chemical change?An alteration of one or more compounds into one or more new and distinct substances is referred to as a chemical change or chemical reaction. In other words, a chemical change is an atomic rearrangement-based chemical process.
A chemical change normally cannot be reversed unless through additional chemical processes, although a physical change can frequently be done so.
The energy of the system changes when a chemical shift takes place. An exothermic reaction is a chemical transformation that produces heat. An endothermic reaction is one that absorbs heat. Chemical changes known as inorganic chemical transformations typically do not involve the element carbon.
Therefore, Chemical change has occur in A beaker suddenly becomes very warm when you mix two room-temperature liquids in it.
To learn more about chemical change, refer to the link:
https://brainly.com/question/14448945
#SPJ2
Which of the following is an example of mutualism?
Answer:
One example of a mutualistic relationship is that of the oxpecker (a kind of bird) and the rhinoceros or zebra. Oxpeckers land on rhinos or zebras and eat ticks and other parasites that live on their skin. The oxpeckers get food and the beasts get pest control
The best example of mutualism among the given options is a. Lichens.
Mutualism is a symbiotic relationship in which both species involved benefit. A strong example of mutualism is found in lichens.
Lichens are not a single organism but rather a close association between a fungus (usually from the Ascomycota or Basidiomycota phyla) and a photosynthetic partner such as a eukaryotic alga or a prokaryotic cyanobacterium.
In this mutualistic relationship:
The fungus absorbs water and essential minerals from the surrounding environment (air, rock, or soil) and forms the structural body of the lichen called the thallus.The photosynthetic partner provides carbon and energy in the form of carbohydrates through photosynthesis, which is utilized by the fungus.Some cyanobacteria associated with lichens also fix atmospheric nitrogen, adding nitrogenous compounds to the relationship.This mutualistic partnership allows both organisms to thrive in environments where they might not survive individually. Therefore, among the given options, Lichens represent a clear example of mutualism.
complete question;
Which one of the following is an example of mutualism ?
a. Lichens
b. Hypertrophy
c. Cuscuta
d. Nepenthes
a hypothetical cell has approximate shape of a shape of a sphere. rhw diameter of thw spherical cell os six units long. another cell is shpaed like a cylider which has the diameter of 6 units and a height or length of 400 units long. determine the volum of both.
Answer:
The sphere: volume is about 113.1
The cylinder: Volume is about 11309.73
Explanation:
This is done by using the formula for the volume of a sphere ( v=4/3 pi r^3) and the formula for the volume of a cylinder (v=pi r^2 h). You plug in things such as radius, height, and pi or 3.14 into a calculator.
The volume of the spherical cell is 36π cubic units, while the cylindrical cell's volume is 3600π cubic units. The volume of a cell has a significant impact on its function and efficiency.
Explanation:
The question is asking to determine the volume of two different cells: a spherical cell and a cylindrical cell, both have a diameter of 6 units, with the cylindrical cell having a height of 400 units.
In geometry, volume describes the amount of space an object occupies. The formula to calculate the volume of a sphere is V = 4/3πr³ and for a cylinder, it is V = πr²h. Here, r stands for radius and h stands for height.
In the case of the sphere, since the diameter is given as 6 units, the radius would be 3 units. So, the volume of sphere would be V = 4/3*π*3³ = 36π cubic units.
For the cylindrical cell, the diameter is also 6 units, making the radius 3 units. The height is given as 400 units. The volume of the cylinder would be V = π*3²*400 = 3600π cubic units.
These calculations can give you the volume of the cell shapes, and further helps you understand how size and shape can affect a cell's function and efficiency.
Learn more about Volume Calculation here:https://brainly.com/question/33318354
#SPJ3
There is a single Scientific Method that all scientists follow.
True False
Answer:
True
Explanation:
I did some research and all of it says that all scientists follow one scientific method