Answers
Answer:30.973762 u
Explanation:
How to find the atomic mass:
If you only wanted the molar mass of single atoms of phosphorous, then m=30.97gmol ; That is a mole of isolated phosphorous atoms would weigh 30.97 grams.
Related Questions
What characteristic was used in this mission to determine a banana's relationship to other the plants?
Answers
The characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics.
What is morphology?
Morphology is the study of the form and structure of living organisms, including their physical and anatomical features. In biology, morphology is used to describe the appearance, shape, and size of different parts of an organism, such as its organs, tissues, cells, and even its molecules. This includes the study of external and internal structures, as well as their function, development, and evolution. Morphological characteristics are often used in the classification and identification of different species, as they can provide important clues about an organism's evolutionary history, ecological niche, and relationship to other organisms.
We assume you are referring to the scientific classification of bananas in the plant kingdom. In this case, the characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics. Bananas belong to the genus Musa, which is part of the family Musaceae.
The characteristics used to classify plants into different taxonomic groups include their structural features, such as their leaves, stems, flowers, and fruit, as well as their genetic and evolutionary relationships. These characteristics are used to group plants into increasingly broader taxonomic categories, from species to genus, family, order, class, phylum, and kingdom.
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After 42 days, 2g of phosphorus-32 has decayed to 0.25 g. What is the half life of phosphorus
Please add work!
Answers
The half-life of phosphorus-32 (P-32) is 14.8 days.
How do we calculate?N(t) = N₀ * (1/2)^(t / T₁/₂)
N(t) is the amount of the substance remaining at time t
N₀ is the initial amount of the substance
t is the elapsed time
T₁/₂ is the half-life of the substance
Initial amount (N₀) = 2 g
Final amount (N(t)) = 0.25 g
Elapsed time (t) = 42 days
We can rearrange the formula to solve for the half-life (T₁/₂):
(1/2)^(t / T₁/₂) = N(t) / N₀
t / T₁/₂ = log₁/₂(N(t) / N₀)
t / T₁/₂ = log(N(t) / N₀) / log(1/2)
t / T₁/₂ = log(0.25 g / 2 g) / log(1/2)
t / T₁/₂ = log(0.125) / log(1/2)
t / T₁/₂ = -log(8) / log(2)
T₁/₂ = -t / log(8) * log(2)
T₁/₂ = -42 days / log(8) * log(2)
T₁/₂ = 14.8 days
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a. nuclear energy
b. geothermal energy
c. fossil fuels
Answers
Answer:
c
Explanation:
Answer: Fossil Feuls
Explanation:
Coal, oil, and natural gas are fossil fuels that are energy that were produced from the remain of organisms that lived millions of years ago.
The RNA product of the genetic code above has the sequence ____________ . It binds to the small subunit of the ____________ . It is joined by the large subunit, completing the initiation stage of the process of ____________ .
Answers
The Genetic code was not given, however, The genetic code associated with this question is as follows:
ACCGCTTGCCGCAAT
Answer:
The correct answer is - UGGCGAACGGCGUUA, ribosome, translation.
Explanation:
The translation is the second process of protein synthesis followed by transcription. Transcription produces mRNA sequence from DNA gene sequence and bring it to the cytoplasm for translation to take place.
The gene segment ACCGCTTGCCGCAAT is encoded to mRNA sequence by converting bases to their complementary bases A to U and C to G and G to C and T to A so the new code will be - UGGACGAACGGUGUUA.
This mRNA binds with a small subunit of ribosomes and then a large subunit of ribosome joined and completes the first stage initiation of the translation.
A steel railing rusts over time. Which statement best explains what happens
to the steel?
A. A new substance forms as iron in the steel interacts with air and
moisture.
B. A change of state occurs as the steel turns into rust.
C. The iron in steel dissolves in the moist air and recrystallizes as
rust.
O D. The color of the steel changes as it undergoes a physical change.
Pls help with this!!!!!!
Answers
Answer: A change of state occurs as the steel turns into rust (I think).
Hollow bones
Survival Advantage
Answers
Answer:They can fit into small or tight spaces.
Explanation:
Why would it be considered a drawback for animal cells to contain cellulose?
Answers
Explanation:
Plants have a rigid structure, the cell wall, which surrounds the cell membrane and serves to provide shape and protect them. If animals were to have a cell wall, they would become stiff which would impact their ability to move. Animals are motile and need flexibility.
(-)Running
(-) eating
(-) Drinking
etc
A graph of predicted species diversity and extinction rates on different islands is shown here. Assume that a group of island forms off of the mainland from volcanic eruptions, creating Islands of bare rock
Which of these describes the processes that provide for the greatest species diversity after an island forms?
Answers
Answer:
The larger islands closest to the mainland will have the highest species diversity and lowest extinction rate.
Explanation:
Since larger islands can support a bigger community of plants and animals, they will have more biodiversity. Since closer islands will have more migration from the mainland, they will have more colonization and fewer extinctions. Therefore, primary succession will happen and result in a larger, more species-rich community on the closest and largest islands.
Drag the tiles to the correct boxes to complete the pairs. Match the type of evidence for evolution to the correct example. Analogous structures, DNA Sequence, Vesitgal structures, homologous strutcures
Answers
Analogous structures include wings in birds and insects homo-logous structures are DNA sequences due to a common origin, and a vestigial structure can be the human appendix.
What are analogous structures?Analogous structures are traits that have the same function but they originated in different lineages.
Conversely, homo-logous structures have the same common origin but they may play different functions.
In conclusion, wings in different taxonomic groups may represent analogous structures, DNA sequences are homo-logous structures when they have the same ansestor and the human appendix is a vestigial structure.
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Does weather disturbance have beneficial effects?
Answers
Answer:
They are able to promote changes to the physical structure of the system.
Explanation:
explain what it means to view something from a frae of reference. provide an example that illustrate your explanation.
Answers
Answer:
ex. where you are standing now
a perspective that one uses to determine if an object is moving.
Explanation:
in physics, a frame of reference, or reference frame, is a perspective that one uses to determine if an object is moving. ... For example, when you see a ball roll down a street, you can tell the ball is moving because the frame of reference is the streets, whatever may be on the side of the roads, or the Earth.
wikipedia
A group of students is conducting an egg-drop challenge. The students must design a container for the egg that will keep an egg intact when the container is dropped from a specified height and hits the ground.
Which ,begin emphasis,two,end emphasis, design strategies should the students consider for their container?
Answer options with 4 options
A.
Design the container to have a very rigid structure.
B.
Design the container with a cushion around the egg.
C.
Design the container to keep the egg secured inside.
D.
Design the container with a low amount of air resistance.
Answers
The students must design a container for the egg that will keep an egg intact when the container is dropped from a specified height and hits the ground.
What is importance of strategy in an experiment?Experimental knowledge to establish the knowledge an clarify the doubts and puzzling aspects of topics.
The students must design a container for the egg that will keep an egg intact. They design the container with a cushion around the egg because when shock of hitting down doesnot affect the egg. The shock absorb by the cushions and thats how egg remain intact when the container is dropped from a specified height and hits the ground.
Hence, option 'B' is correct.
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in meiosis, during _____ sister chromatids separate.
Answers
Answer: anaphase II
Explanation:
In meiosis, during anaphase II sister chromatids separate. Prophase I and metaphase I are the first two stages of meiosis I, respectively.
What are the characteristics of anaphase I and anaphase II?The centromeres of each chromosome simultaneously separate during the anaphase II stage of meiosis II, and the sister chromatids are drawn apart in the direction of the opposing poles.
A microtubule network referred to as the spindle apparatus is used to transport chromosomes to both poles of a meiotic cell at this stage. Through this technique, two distinct groups of homologous chromosomes are formed.
The homologous chromosomal pair's individual kinetochore-microtubules are joined to each chromosome during anaphase 1. Two kinetochore microtubules from each of the two opposite poles bind to the bivalent chromosome's centromere during anaphase II.
Therefore, In meiosis, during anaphase II sister chromatids separate. Prophase I and metaphase I are the first two stages of meiosis I, respectively.
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Ex an ice cube is placed in a sealed container and beated until it becomes steam, what will happen to the weight of the ice?
A The weight will stay the same
M
M
R
M
B
The weight will increase when it becomes a liquid and then decrease when it becomes a gas
C The weight will decrease since the liquid will take up less space.
D
The weight will increase since gases do not have mass.
Answers
Answer:
B
Explanation:
Because the ice evaporated it's weight has Evaporated also.
How does the mass of the paper helicopter affect the time it takes to fall 2 meters? in 250 easy words
Answers
Answer:10
Explanation:
200
Give long answers to the following questions. [3x8=24] 9. Mention characteristic features of family Solanaceae with floral formula and floral diagram. Give two examples (Scientific names) of medicinally important [4+1+2+1] plant species of this family.
Answers
The plants exhibit pharmacological significance due to their alkaloid content, which can have potent effects on the nervous system and various bodily functions.
Family Solanaceae, commonly known as the nightshade family, is a diverse group of flowering plants characterized by several key features. The floral formula of Solanaceae is typically represented as (5) K (5) C(5) A(2+2) G(2), indicating five sepals, five petals, five fused stamens (with two longer and three shorter ones), and a superior ovary composed of two fused carpels. The floral diagram represents a radial symmetry with overlapping sepals and petals, and the stamens and pistil positioned in the center.
Solanaceae encompasses many medicinally important plant species. Two notable examples are:
Atropa belladonna: Also known as deadly nightshade, Atropa belladonna contains alkaloids such as atropine and scopolamine, which have various medical uses. These compounds have anticholinergic properties and are used in medicine to dilate pupils, treat gastrointestinal disorders, and relieve bronchial spasms.
Datura stramonium: Commonly called jimsonweed or thorn apple, Datura stramonium contains alkaloids like scopolamine and hyoscyamine. It is used for its antispasmodic and bronchodilatory properties and has been employed in traditional medicine to relieve asthma symptoms and treat skin conditions.
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a flea and dog are a. example of
Answers
Answer:
Parasitism
Explanation:
A flea and a dog go with this example because a flea irritates the dogs skin and feeds on its blood. (Just like how some sea animals carry bacterial diseases. Like Shrimp or something)
Hope this helped xoxo! :)
Reactions within _______ provide most of the energy needed by a typical cell.
a- cytoplasmb- the endoplasmic reticulumc- the mitochondriad- the plasma membrane- nucleus
Answers
Answer:mitochondrion
Explanation: They are membrane bound cell organelles that generates most of the chemical energy needed to power the cell’s biochemical reaction .
Reactions within mitochondria provide most of the energy needed by a typical cell.
What is mitochondria?The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular).
Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP). Small chromosomes found in mitochondria are found there.
Organelles that are membrane-bound include mitochondria, however they are membrane-bound with two distinct membranes. And for an intercellular organelle, that's extremely remarkable. Those membranes provide the fundamental function of mitochondria, which is to produce energy.
Therefore, Reactions within mitochondria provide most of the energy needed by a typical cell.
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What basic substances make up a cell
Answers
Answer:
The main ingredient of cells is water. Water is needed to maintain homeostasis. Cells are also made up of macromolecules—nucleic acids, lipids, proteins, carbohydrates. These macromolecules help maintain a cell's structure, help cells communicate with each other, aid in energy storage, etc.
Answer:
Water
Explanation:
Suppose three nucleotides are inserted into a gene. Will this insertion mutation cause a frameshift mutation?
Answers
answer and explanation
this type of insertion will not cause a frame shift mutation because the codons are read in multiples of three, rather there will be an extra codon in the sequence of the protein coded for by the sequence. however the sequence will still be read in the same manner
If subjected to sound frequencies of 25,000 to 100,000 cycles per second, which of the
following would be least affected?
A. a human being
B. a cheetah
C. a porpoise
D. a bat
E. a house cat.
Answers
Answer: D. a bat
Explanation:
A bat just picks up on the sound waves but does actualy hear stuff
D. A bat would be least affected by sound frequencies of 25,000 to 100,000 cycles per second. Bats use ultrasonic frequencies in their echolocation calls to navigate and locate prey, they have specialized ears and auditory systems that allow them to hear and process these high frequency sounds. While other animals like human, cheetah, porpoise and house cat would not be able to hear these ultrasonic frequencies and would not be affected by them.
Drag the tiles to the correct boxes to complete the pairs
Match the tools and equipment with their uses.
machine that stirs and tills the soil
machine used to break up large clumps of soil
machine that spreads seeds all over the tilled soil
machine used for reaping, threshing, and winnowing
roller
broadcast seeder
>
combine harvester
2
cultivator
Answers
Answer:
Cultivator - Machine that stirs and tills the soil
Combine Harvester - Machine used for reaping threshing, and winnowing
Broadcast Seeder - Machine that spreads seeds all over tilled soil
Roller - Machine used to break up large clumps of soil
Explanation:
I got it right on the test
Humans are highly dependent on fossil fuels. However, like other
natural resources, fossil fuels are unevenly distributed around the world. For example,
nearly 67 percent of the world's reserves of crude oil are currently in the Middle East. Also,
Russia has more natural gas than any other country in the world. Use a cause-and-effect
relationship to predict how human use of fossil fuels will affect their distribution over time.
Answers
Answer: I predict that human use of fossil fuels will affect their distribution over time because.
Explanation: Because if we keep on using fossil fuels over and over we eventually loose all of it because nearly 67% of the worlds reserves of crude oil are currently in the Middle East. So if we keep on using it well then there won't be anymore fossil fuels left for us, And if we keep using it, it will also slowly kill us off and also kill everything else around us.
Name of an organism that contains a single chromosome and cell division occurs through fission or budding
Answers
Answer:
One example of an organism that contains a single chromosome and undergoes cell division through fission or budding is the bacterium called Escherichia coli (E. coli). E. coli is a unicellular organism with a single circular chromosome. It reproduces through binary fission, a process in which the cell divides into two genetically identical daughter cells.
Answer:
Prokaryotes
Explanation:
How do male cichlids protect their fry from predators
Answers
How does propagation occur in DNA and RNA?
Answers
Answer:
Life on earth is very diverse, from single-celled protozoans to complex multicellular plants and animals. But at the molecular level, all life is fundamentally made up of the same building blocks – DNA and RNA. One of the primary differences between DNA and RNA is that DNA is double-stranded while RNA is single-stranded.
The image shows the rate of an enzyme reaction under conditions of no inhibition, competitive inhibition, and noncompetitive inhibition as reactions labeled uninhibited, A, and B. Which of the following best explains what has occurred in the enzyme reactions?
Reaction B shows competitive inhibition, where increased substrate competes with inhibitors for the active site.
Reaction A shows noncompetitive inhibition, where increased substrate competes with inhibitors for the active site.
Reaction A shows competitive inhibition, where increased substrate does not affect the enzyme’s binding with the inhibitor.
Reaction B shows noncompetitive inhibition, where increased substrate does not affect the enzyme’s binding with the inhibitor.
Answers
The option that best explains what has occurred in the enzyme reactions is option C: Reaction A shows competitive inhibition, where increased substrate does not affect the enzyme's binding with the inhibitor.
What occurs when a non-competitive inhibitor inhibits an enzyme?Instead of affecting how much substrate binds to the enzyme, this kind of inhibition slows down the enzyme's rate of turnover. Instead of being stopped, the reaction is said to be one that is slowed down.
Therefore, the act of increasing the substrate will not be able to also increase the non-competitive inhibition. Hence option C is correct.
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What are 2 similarities chromosomes you get from parents
Answers
The two similarities between chromosomes that you get from your parents are Genetic Material and Number of Chromosomes.
What more should you know about genetic materials and number of chromosomes you get from parents?In terms of Number of chromosomes: Every Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. Each parent contributes 23 chromosomes to their child, for a total of 46.
in tems of Genetic material: The chromosomes that you get from your parents contain the same genetic material. This is why you look like your parents and why you have inherited some of their traits.
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Giant sequoias can grow to be nearly 100 meters (328 feet) tall. They rely on a complex transport system to allow
water to travel from the roots to the leaves at the top of the tree.
Which transport tissue allows water to travel upward from the roots to the leaves?
Enter your answer in the box.
Answers
The transported tissue that allows water to travel upward from the roots to the leaves is the xylem tissue in vascular plants such as in this case giant sequoia.
What is the function of the xylem tissue in trees and vascular plants?The function of the xylem tissue in trees and vascular plants is to transport water and dissolved solutes from the roots to the upper organs, i.e., the shoot and leaves.
Therefore, with this data, we can see that function of the xylem tissue in trees and vascular plants is based on water transport.
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Word Bank:
Cell wall, cell membrane, capsid, nucleus, mitochondria, membrane-bound organelles, central vacuole, made of cells, requires host cell, grow and reproduce, can obtain energy, may cause disease, antibiotics may be used to treat infection, vaccines are used to prevent infection, living thing, DNA, and RNA.
From the word bank above list each beside Prokaryotic, Eukaryotic, and virus. All words may be used more than once.
Prokaryotic cells:
Eukaryotic cells:
Viruses:
Answers
Prokaryotic cells: cell wall, cell membrane, nucleus, central vacuole, made of cells, can obtain energy, grow and reproduce, DNA, and RNA.
Eukaryotic cells: cell wall, cell membrane, nucleus, mitochondria, membrane-bound organelles, central vacuole, made of cells, can obtain energy, grow and reproduce, DNA, and RNA.
Viruses: capsid, requires host cell, may cause disease, antibiotics may be used to treat infection, vaccines are used to prevent infection, living thing, DNA, and RNA.
What are viruses?Viruses are small infectious particles that propagate solely inside living cells of other organisms. Their structure comprises genetic material bound by a protein coat called a capsid, with some viruses displaying an additional lipid envelope surrounding the capsid.
Since viruses cannot self-reproduce, host cells are crucial to their replication and production.
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