mixture
7. Explain the following: All compounds are substances,
but not all substances are compounds."
Answers
Answer:
Below
Explanation:
"All compounds are substances, but not all substances are compounds."
In simpler terms, let us use an example. Look at the image below.
In a big circle, there are substances. And in the small there are compounds. Since the compounds are inside the big circle, they are compounds, but as you can see, the substances are not inside the compounds so they cannot be considered compounds.
If you think about it, a substance is anything. So would you think a bottle, for instance, is a compound? A compound is a mixture of molecules. And a substance is most likely a combination of atoms, which are elements.
Related Questions
which mechanism of action is being described when an antibiotic drug causes the destruction of bacterial cell walls
Answers
The mechanism of action described when an antibiotic drug causes the destruction of bacterial cell walls is NONSELECTIVE INTERACTION. These drugs do not interact with specific molecules.
Nonselective drugs are involved in nonselective interactions, i.e., they act on a variety of receptors and/or enzymes.
Nonselective drugs can target different cellular structures (e.g., bacterial cell walls) and/or metabolic processes.
For example, Phenocybenzamine is a nonselective drug that can affect different receptors, which is used for the treatment of high blood pressure and sweating associated with pheochromocytoma.
Conversely, enzymes are biological catalysts that speed up chemical reactions by selectively interacting with specific ligands (i.e., substrates).
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Fair weather, rain showers, clear and cold, and warm and windy are examples of which of the following?
A. weather alerts
B. weather conditions
C. weather movement
D. weather processes
Answers
Answer:
C. weather movement
Explanation:
correct me if im wrong
PLEASE HELP ME IM TIMED!
Answers
Answer:
All living things are composed of single cells or multiple cells
Explanation:
The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life. The cell theory is so established today that it forms one of the unifying principles of biology.
Adaptational characteristics of himalayan animals
Answers
Answer:
Thick layer of body fat or bubbler, to reduce body heat loss. Strong hooves for walking on rock slopes. Thick fur on paws for protection from cold while walking on snow.
Explanation:
1) Thick layer of body fat or bubbler, to reduce body heat loss.
2) Strong hooves for walking on rock slopes.
3) Thick fur on paws for protection from cold while walking on snow.
4. Describe the interrelationship between cell, tissue and organ of human body.
Answers
Answer and Explanation:
Cell: Molecules get grouped in alive cellular units that have auto replication capabilities. It is the smallest structural unit capable of functioning by itself. A cell is capable of communicating with other cells, their membranes delimitate them and protect them, constituting a selectively permeable barrier, receives signals from the exterior and responds in different ways to the different signals. There are different cells with different sizes, shapes, and forms.
Tissue: A tissue is the organization and association of the same type of cells. Each tissue performs different functions. These tissues can be epithelial, adipose, nervous, muscular, and etcetera.
Organ: An organ is composed of different tissues that work together in a more complex function. Tissues form structures such as the heart, lung, kidney, brain, and etcetera. Each organ has its function.
Organ systems: When different organs get associated and work together, they become a system. Working together in a stable way organs maintain homeostasis.
how would you differentiate between pollen cells and algae cells
Answers
The biological theory of aging known as the _______ theory suggests that cells can divide a maximum number of about 75 to 80 times and that cells become less capable of dividing as people age.
Answers
Answer:
cellular clock theory
Explanation:
Good luck & Have an amazing day :)
Which is the most highly sensitive time within the developing embryo for the risk of malformation related to environmental teratogens
Answers
The most highly sensitive time within the developing embryo for the risk of malformation related to environmental teratogens is cleft palate at 8 weeks gestation. It is an opening in the roof of the mouth.
A teratogen is any substance and/or physical agent that may cause an irreversible abnormality in the structure of the developing embryo or fetus (e.g., classical pesticides such as DDT).
Cleft palate is a malformation mainly caused by mutagenic agents (teratogens) during pregnancy, which affects approximately one (1) of 650 births.
A cleft palate is a malformation that occurs when the two plates of the skull that form the roof of the mouth cannot be completely joined.
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can anyone explain for me number 2 and 3
Answers
Answer:
wassup bro,
could you share the whole screen thing so I can try
thnx
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What is the conversion factor from km. to ft.? If Joe traveled 12 kilometers, how many feet did he travel?
Answers
Answer:
The distance traveled by Joe in feet is 39,372 ft:
Explanation:
The conservation factor from km to Ft is 1 km = 3280.84 feet.
* In order to convert the value-form km to ft then we multiply the given value of the length by 3281.
*We are given that:
*Distance traveled by Joe = 12km
*Distance in feet = 12×3281
*Distance in feet = 39,372 ft
**Thus, the Distance traveled by Joe in feet is 39,372 ft.
The conversion factor from kilometers to feet is 3280.84 feet/kilometer. This means that there are 3280.84 feet in every kilometer.
So, if Joe traveled 12 kilometers, he traveled 12 * 3280.84 = 39370.08 feet.
1 kilometer = 3280.84 feet
12 kilometers = 12 * 3280.84 feet = 39370.08 feet
Therefore, Joe traveled 39370.08 feet if he traveled 12 kilometers.
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A group of students was asked to explain how one organelle in a plant cell directly supports the work or
another organelle to maintain cellular homeostasis. Which of the following students provides the BEST
explanation?
A. Student 1: Lysosomes supply amino acids which ribosomes use to build proteins.
B. Student 2: Vacuoles store genetic information which are used to construct the cell wall.
C. Student 3: Chloroplasts produce simple sugars which mitochondria use to provide energy for the cell.
D. Student 4: Golgi Bodies sort and package lipids which the Endoplasmic Reticulum uses to make proteins.
Answers
Answer:
Letter D. Golgi Bodies sort and package lipids which the Endoplasmic Reticulum uses to make proteins.
The student that provides the best explanation is as follows:
Student 3: Chloroplasts produce simple sugars which mitochondria use to provide energy for the cell.What is Cellular Homeostasis?Cellular homeostasis may be defined as the capability of a cell in order to maintain relative stability and function as alterations take place in the internal or external environment.
According to the question, the Lysosomes are the fatal or self destrcutive bags for living cells. Vacuoles store nutrients as well as waste substances of the whole cell in order to prevent cells from being contaminated.
The sorting of important molecules like lipids and proteins is initiated through the endoplasmic reticulum and proceeds to the Golgi bodies through the anterograde pathway.
While the photosynthetic organelle chloroplast captures the radiation energy from the sun and synthesizes simple sugar like glucose which is used by another organelle mitochondria to provide energy for the cell.
Therefore, the correct option for this question is C.
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PLZ HELP! what would happen to the current heliocentric model if entirely new evidence emerges that cannot be explained by the model?
Answers
Answer:
At least give some answers to go by, anyway, if the evidence is not yet proven then nothing, if it is proven to be true(whatever it is) it would make us change the current model to support this new evidence.
Explanation:
Don't expect a perfect answer, I haven't done the question to know the answer choices, so this is all I can presume. and if somebody comes in here and pastes the answer from A.P.E.X without stating that they copied it I am going lose my mind.
two impacts of climate change on agriculture.
Answers
Answer:
OKAY FIRST IMPACT:
Crops either get to much sunlight during droughts or to much water during floods
SECOND IMPACT:
Crops may not have the right amount of nutrients or vitamins because of heat produced by the sun every day
BRAINLIST ???
the baltimore system classifies viruses based predominantly on
Answers
Answer:
Baltimore classification is a system used to classify viruses based on their manner of messenger RNA (mRNA) synthesis. By organizing viruses based on their manner of mRNA production, it is possible to study viruses that behave similarly as a distinct group.
Compare morphological and bio-
chemical evidence supporting
evolution.
Answers
The morphological evidence which is shown in fossils to modern animals supports evolution because some dinosaurs, for instance, had feathers and we can obviously see that trait today in birds. The biochemical evidence, which comes in the form of DNA comparison and amino acid similarities, shows that we related closely to monkeys and pigs, which suggests that we have close ancestors to these animals.
Morphological evidence: Physical structures and traits indicate evolutionary relationships.
Biochemical evidence: Genetic and molecular similarities indicate evolutionary relationships.
Evolution is supported by morphological evidence. Scientists can establish evolutionary links by analysing species' anatomy. Homologous structures, which have a common origin but diverse functions, reflect a shared lineage. Comparative examinations of bone structure, limb arrangement, or body plans can reveal evolutionary links.
Biochemical data emphasises genetic and molecular similarities between organisms. Scientists may compare DNA, protein, and other substances at the molecular level. Common ancestry and evolution explain these commonalities. Comparing genetic sequences can show how closely related species are and when they evolved from a common ancestor.
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One variable not mentioned in the description of the experiment that could affect the results of the investigation is reduced canopy cover. Describe the effect that canopy cover would likely have on the results of the investigation.
Answers
The canopy cover can affect the results of an investigation because a higher canopy cover is accompanied by a decrease in the availability of sunlight.
The canopy cover is the proportion of the ground covered by vegetation when it is viewed from vertically above the planted area.
The level of canopy cover affects light availability on the ground and also its microclimate, thereby this feature can also alter any biological experimental procedure by affecting the level and type of biodiversity.
A reduced canopy cover may alter any experimental outcome by increasing the energy/light input in the ground cover stratum, thereby likely affecting biodiversity.
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for the thin homogeneous wire shown, determine the x coordinate of its centroid using the "method of parts".
Answers
Explanation:
For the thin homogeneous wire shown, determine the x coordinate of its centroid using the "method of parts" 7.50 in. 4.50 in. 21.0 in. 18.0 in.
what is the most common type of laboratory assay that is widely used to assess thyroid hormone concentration
Answers
B, Immunoassay
Can Someone help me with this?? Your help will be very much appreciated ! Its somewhat confusing so Please help if you dont mind ? ❣️I would love someone that could answer this correctly !! Thank you <333!
Answers
Answer:
1)Protein is composed of amino acid.
We can identify protein by sequencing amino acids in peptide.
Carbohydrates is primarily avilabke energy source.
2) Proteins and nucleic acids are made up of C H O But carbohydrates and lipids consist of C H O N.
3)Nucleic acid DNA and RNA store and transmit genetic information from one generation to next generation.
Nucleic acid as present in body therefore not considered as essential nutrients.So dietary sources are plant and animal foods like meat fish vegetables etc.
A student is conducting an experiment with biochemical reactions and notices that at high temperatures, the reaction rate decreases significantly.
Which statement best explains the decrease in reaction rate?
The bonds of the substrate were breaking.
The enzyme bonded with the substrate.
The enzyme denatured and changed shape.
The activation energy was increasing.
Answers
Answer:
The enzyme denatured and changed shape
Explanation:
Enzymes are proteins, which can only function properly within a certain range of temperatures- when things get too hot, proteins undergo a structural change and are considered to be 'denatured'. This means that enzymes will not be able to function properly under those high temperatures, because the substrate bonding site would no longer be the right shape for said substrate.
The statement best explains the decrease in reaction rate is the enzyme denatured and changed shape. Thus option 3 is correct.
What are enzymes?Enzymes are defined as a material that functions as a catalyst in living things, controlling the pace at which chemical processes take place without changing the substance itself.
There are six types of enzymes.
HydrolysesOxidoreductaseLyasesTransferaseLigasesIsomeraseThe functions of enzymes are:
In human bodies, enzymes facilitate metabolic reactions. From breathing to digestion, they support.Health issues might result from having a too amount or too little of a certain enzyme. To help their bodies function as they should, certain persons with chronic diseases may need to take enzyme supplements.Thus, the statement best explains the decrease in reaction rate is the enzyme denatured and changed shape. Thus option 3 is correct.
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the united states national grid is based on the universal transverse marcator coordinayte system true or false
Answers
Answer:
true
Explanation:
Read the paragraph.
There are two main kinds of winter storms involving snow. A large amount of falling snow is called a snowstorm. Then, there is the blizzard. A blizzard is a very violent storm. It features extreme cold, strong winds, and low visibility.
What compound-complex sentence can be formed from the underlined section of the passage to add variety to the paragraph?
Snowstorms bring a lot of snow; blizzards are violent and they feature extreme cold, strong winds, and low visibility.
One is a large amount of falling snow called a snowstorm, and the other is a violent storm with wind, cold, and low visibility called a blizzard.
The snowstorm is a large amount of falling snow, but the blizzard is much more violent; it features extreme cold, strong winds, and low visibility.
The first is the snowstorm, which brings large amounts of falling snow, and the second is the blizzard, a violent storm that features extreme cold, strong winds, and low visibility.
Answers
[tex] \: \: \: \: \: [/tex]
questionWhat compound-complex sentence can be formed from the underlined section of the passage to add variety to the paragraph?answerThe snowstorm is a large amount of falling snow, but the blizzard is much more violent; it features extreme cold, strong winds, and low visibilityhope it helps[tex] \: \: \: \: \: [/tex]
The first is the snowstorm, which brings large amounts of falling snow, and the second is the blizzard, a violent storm that features extreme cold, strong winds, and low visibility. Therefore, option (B) is correct.
This compound-complex sentence serves the purpose of enhancing the paragraph by introducing supplementary facts and information, so contributing to its overall variety. This article provides a comprehensive analysis of the two primary categories of winter storms, namely snowstorms and blizzards, elucidating their distinct properties in a coherent and structured fashion.
The sentence employs a blend of subordinate and main clauses in order to effectively communicate the information.Therefore, option (B) is correct.
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Select the correct pair of classes that are categorized under superclass Pisces.
a) Cyclostomata and Osteichthyes
b) Osteichthyes and Chondrichthyes
c) Agnatha and Gnathostomata
d) Cyclostomata and Chondrichthyes
Answers
Answer:
d
Explanation:
because it is the answer
which transcription factor binds directly to the tata-box sequence?
Answers
The transcription factor that binds directly to the tata-box sequence is TFIID. This transcription factor (TFIID) is a macromolecular protein complex.
The TATA box is a fundamental nucleotide gene sequence that forms the eukaryotic core promoters, which are required to initiate transcription.
TFIID is a macromolecular protein complex (also called the RNA polymerase II preinitiation complex), which acts as a general transcription factor during the initiation of eukaryotic transcription.
TFIID recognizes and binds to the TATA box (core promoter) and also binds with different activator and repressor proteins in order to regulate the transcriptional activity.
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any form of water that falls from clouds is called
Answers
Answer: Precipitation
Explanation:
Rabbits and sheep both graze on shrubs, grasses, and other plants. The sharp rise in the population of rabbits in a region may result in a shortage of plants for sheep to graze upon.
This relationship between sheep and rabbits is an example of _______.
A.
parasitism
B.
predation
C.
commensalism
D.
competition
Answers
The answer is D) competition.
We can see from the problem that the two animals are competing with one another. As the number of rabbits increases, the competition between the food source increases. This is why predators are important for the environment, as the level out the playing field for both animals.
I hope this helps! :)
what basic unit of heredity is found in segments of dna
Answers
Answer:
Genes
Explanation:
Genes are found in DNA and are the basic unit of heredity.
Based on cell theory, which of these answer choices would describe one reason a virus is considered nonliving?
Answers
Answer: Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.
in the monohybrid crosses performed by mendel, the f1 plants always displayed ____.
Answers
in the monohybrid crosses performed by mendel, the f1 plants always displayed one trait
The answer to your question would be; one trait
I hope this helps!
HOW
TO
PROJECT: BUILDING DNA
The structure of DNA resembles a twisted ladder called a double helix. For this project, you will build a DNA molecule by
placing its basic parts together like pieces of a puzzle.
Answers
The structure of DNA resembles a twisted ladder because both strands are linked by hydrogen bonds.
What is DNA?Deoxyribonucleic acid (DNA) is a double helix composed of two long chains of nucleotides linked by hydrogen bonds.
In DNA there exist only four different types of nucleotides (i.e., Guanine, Cytosine, Thymine and Adenine).
In conclusion, the structure of DNA resembles a twisted ladder because both strands are linked by hydrogen bonds.
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