Answer:
A is the test of protein, B is the test for fat and C is the test for starch
Explanation:
For A, the materials required are;
watercopper sulphate solutionA droppercaustic soda solution- the procedure;
with the dropper, add 10 drops of water and shake the test tubeadd 2 drops of copper sulphate solutionadd 10 drops of the caustic soda solution, shake and observe.- the result and conclusion;
if the solution turns violet, protein is present.
For B, the materials needed are;
paper- the procedure;
wrap the meat in the paper and crush itunwrap the meat, straighten the paperthen let it dry and observer- the result and conclusion;
if an oily patch is observed in the paper, then fat is present.
For C, the materials are;
iodinedropper- the procedure;
add a few drops of the iodine to the crushed potatoes- the result and conclusion;
if a blue-black coloration is observed, starch is present.
Type your answer in the box.
The video reports a decline in the number of "packers" in California. What are packers, and what challenges does
their decline pose to firefighters who fight wildfires?
Answer:
packers are people who pack mules with firefighting supplies and deliver those supplies to the firemen fighting fires in california. The decline of packers in california means that there is a smaller chance that the firemen wont have gear and supplies to fight the fire. The fires will win and burn down people's homes and cost some people thier lives.
Explanation:
Don't worry; this isn't the direct answer. I wrote this by myself.
Need help please ASAP !!
What is the classification of virus
Answer:
Viruses are classified into 4 groups based on their shape: filamentous, isometric , enveloped, and head and tail.
Many viruses attach to host cells to facilitate penetration of the cell membrane, allowing their replication inside the cell.
The virus core contains the small single- or double-stranded genome that encodes the proteins that the virus cannot get from a host cell.
Explanation:
not sure if this is what you are looking for
According to the Baltimore classification system, Viruses are classified into seven classes on the basis of their morphology and function.
What is Virus?A Virus may be defined as a type of microorganism that consists of a nucleic acid molecule in a protein coat and infects cells and may cause disease.
Viruses are classified into seven classes, each of which has its own families of viruses and has differing replication strategies.
Class 1: Double-stranded DNA viruses.
This type of virus usually must enter the host nucleus before it is able to replicate. An Example is Adenoviridae.
Class 2: Single-stranded DNA viruses.
Such types of viruses replicate within the nucleus and pertain highly in vertebrates. An example is Circoviridae.
Class 3: Double-stranded RNA viruses.
Such types of viruses do not depend on host polymerases for replication. An example is Birnaviridae.
Class 4: Single-stranded RNA viruses (positive sense).
Such types of viruses have polycistronic mRNA which is translated into a polyprotein. An example is Flaviviridae.
Class 5: Single-stranded RNA viruses (negative sense).
Such types of viruses must be transcribed by viral polymerases into complementary forms. An example is Filoviridae.
Class 6: Single-stranded RNA viruses (positive sense) that replicate through DNA intermediate.
Such types of viruses use the enzyme reverse transcriptase to convert the positive sense RNA into DNA. An example is Retroviruses.
Class 7: Double-stranded DNA viruses that replicate through a single-stranded RNA intermediate.
Such types of viruses have a double-stranded gapped genome that is subsequently filled into a covalently closed circle that serves as the template for the production of viral mRNA. An example is the Hepatitis B virus.
Therefore, it is well described above.
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Which describes an old technology and a current technology that can fulfill people’s needs?
emerging technologies
overlapping technologies
obsolete technologies
coexisting technologies
Answer:
coexisting
Explanation:
Answer:
Coexisting
Explanation:
energy transfer through molecule to molecule contact is called?
Answer:
It's called conduction
Explanation:
What does the image above depict?
a. images and fragments from the artist's dreams
b. a ymbolic representation of a German officer
C. symbolic memories of the artist's life
d. the horrors of war
Answer:
B. symbolic representation of a German officer
Explanation:
"Portrait of a German Officer is an early 20th century portrait by American modernist painter Marsden Hartley. Done in oil on canvas, the portrait depicts the abstract figure of an Imperial German officer as being composed entirely of military decorations and badges of rank."
The image above depicts a symbolic representation of a German officer.
Portrait of German officer
The picture in the given image depicts a portrait of a German officer an early 20th century.
The portrait was designed by an American modernist painter Marsden Hartley. Done in oil on canvas, the portrait depicts the abstract figure of an Imperial German officer as being composed entirely of military decorations and badges of rank.
Thus, the image above depicts a symbolic representation of a German officer.
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0-7 Why is excess use of fertilizers detrimental for environment?
Q-8 What is a Genetically Modified Crops (GMCs)? Name any one such crop
Answer:
Answer of Question 7
Fertilisers are inorganic chemicals which are not easily degraded. Excess use of fertilisers causes environmental pollution as their residual and unused amounts will become pollutants for air, water and soil.
Answer:
Answer of Question 8
Genetically modified crops are crops produced from organisms that have had specific changes introduced into their DNA using the mmethods of genetic engineering
Example
cotton
Which describes gas exchange in the respiratory system?
A. Gas exchange happens through diffusion.
B. Gas exchange removes oxygen from the body.
C. Gas exchange occurs between the body’s cells and bronchi.
D. Gas exchange protects the body against foreign invaders.
Answer:
A.
Explanation:
A. Gas exchange happens through diffusion.
Answer:
A
Explanation:
The condition of ketoacidosis is Select one: a. a potentially fatal buildup of acetoacetate or 3-hydroxybutyrate lowering blood pH. b. due to a lowered production of ketone bodies than is normal. c. the increase in pH of the cells due to ketone body production. d. only found when anaerobic catabolism of fat occurs.
Answer:
The correct answer is option A ( a potentially fatal buildup of acetoacetate or 3-hydroxybutyrate lowering blood pH.)
Explanation:
Ketoacidosis results in a type of body metabolic state where the urine concentrations are high in ketone bodies, such as acetoacetic acid , 3-hydroxybutyrate. Fatty acids are converted to ketone bodies, resulting in a very high level of ketone bodies which automatically lowers the blood pH.
Ketoacidosis is of different types, Diabetic ketoacidosis, alcoholic ketoacidosis, starvation ketoacidosis. They are all associated with the accumulation of ketone bodies within the bloodstream. The underlying disease common with ketoacidosis is Diabetes.
Helpppp
In the lytic cycle, how does the virus cause
the host cell to die?
By taking over the bacterial cell and making it produce viral DNA
and protein.
By becoming part of the host DNA.
By damaging the cell membrane as it injects viral DNA into the
host celL.
Answer:
A
Explanation:
A virus, or phage, will go into a cell and inject instructions for it to start reproducing more viruses. Once the cell is full of viruses, they trigger the cell's 'self destruct' and burst out to go to other cells and rapidly reproduce exponintially.
What attraction holds the nitrogenous bases together within the double helix?
a
deoxyribonucleic acid
b
ribose sugar
c
hydrogen bonds
d
phosphate
I attached the image above
Why is it an important property for water to be less dense as a solid?
Answer:
Water has a unique density. It is less dense as a solid than it is as a liquid, which is why ice floats on top of liquid water.
Explanation:
Answer: Water’s lower density in its solid form is due to the way hydrogen bonds are oriented as it freezes: the water molecules are pushed farther apart compared to liquid water. With most other liquids, solidification when the temperature drops includes the lowering of kinetic energy between molecules, allowing them to pack even more tightly than in liquid form and giving the solid a greater density than the liquid.
The low density of ice, an anomaly, causes it to float at the surface of liquid water, such as an iceberg or the ice cubes in a glass of water. In lakes and ponds, ice forms on the surface of the water creating an insulating barrier that protects the animals and plant life in the pond from freezing. Without this layer of insulating ice, plants and animals living in the pond would freeze in the solid block of ice and could not survive. The detrimental effect of freezing on living organisms is caused by the expansion of ice relative to liquid water. The ice crystals that form upon freezing rupture the delicate membranes essential for the function of living cells, irreversibly damaging them. Cells can only survive freezing if the water in them is temporarily replaced by another liquid like glycerol.
Most animals living in the_______migrate or hibernate during the winter.
options:
Tropical Rainforest
Desert
Tudra
Answer:
Tundra
Explanation:
to survive the long cold winters and to breed and raise young quickly during the winter they migrate
what is a hybrid tell me brainly if you do
Explanation:
a hybrid is a mixture of two different things resulting in something that has a little bit of both
Answer:
A hybrid is an animal or plant resulting from a cross between genetically unlike individuals,a picture is below as an example of a HYBRID
Also, a hybrid can be something changed after being created.
Hybrids can be; cars,animals and even people (nephilim).
I hope this helps
Please actually answer the question i need the answer, i'll give brainliest!!!!
A city is located in an area that has experienced 7.5-magnitude earthquakes in the past.
The city is considering building a new skyscraper.
Use the earthquake magnitude scale to predict the amount and type of damage residents should expect from future earthquakes of similar magnitude.
Then suggest a way to minimize the effects of future earthquakes on the skyscraper.
Hi- Uhm, Help, please?
Answer:
At the end of meiosis there are two daughter cells, at the end of meiosis telopashe there is four different cells
Explanation:
what happens to all the weight of the food we eat
Answer:
All the weight of food we eat can happen in many ways. It can be digested and turned into waste. It can also be turned into body fat. The weight of the food we eat can help give us nutrition and vitamin s.
Explanation:
The weight of food can slightly go away due to food going in to the digestion system and turns into waste.
Apologies if this isn't the best answer.
Science 6th grade digital INB- You dont know what parts of the ground are safe and what parts are thin crusts of soil covering fires or sinkholes. Design a system that can access the area and take measurements that show changes in the fire. (No right or wrong answer just need someone to come up with something and quick.)
Answer:
Fire detecting Scanner.
Explanation:
Fire detecting Scanner is a system which has the ability to scan the area and tells the changes occurs in the fire inside the earth crust. This scanner collect all information about the area on the basis of which we can take steps to avoid the damage caused by the fire. With the help of this scanner we can tell that which part is safe and which part of the area is dangerous for people.
what are 6 hevy metals that can be taken up by plants
Answer:
Cd, Cr, Cu, Hg, Pb, and Zn
Kate and Sam are using a scanning electron microscope to study photosynthesis in algae. Which is a benefit of this type of microscope compared to
a light microscope?
Answer:
B. Produces highly magnified images
Explanation:
Trust me
Kate and Sam are using a scanning electron microscope to study photosynthesis in algae, and the benefit of using this type of microscope rather than a light microscope is that the scanning microscope gives clearer details of the process.
What are the benefits of using a microscope?The microscope gives a better view of the smaller things, and there are different types of microscopes, such as the light microscope, the electron microscope, etc., and other high-quality microscopes that are helpful for the better viewing of the samples. The light microscope has a lower magnification range than the electron microscope, and the species can be better viewed in the electron microscope. Depending on the application, different microscopes should be used, and photosynthesis can be seen better in a scanning microscope than in a light microscope.
Hence, the benefit of using this type of microscope rather than a light microscope is that the scanning microscope gives clearer details of the process.
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Do you think that cell types with shorter or longer life spans go through mitosis more often? Explain your answer. PLEASE HELP ASAP
Explain how the farms upriver were adding to the high nitrate levels. gizmo
Answer:
Farmers were adding high nitrate levels from many large corn farms along the river. The farmers spray fertilizers that have ammonia and nitrate onto their crops. During the drought, the farmers used extra fertilizer. As rained, the ammonia and nitrate from the fertilizer were washed into the river.
In the pigs produced 10 pounds of feces that contained ammonia and nitrate. The pit is too small to obtain such large amount. When it rained the waste overflowed in to the river.
Explanation:
The drought from the week before and the large rain fall played a large part in the outcome of the annomia and nitrate exposure to water.
The farms upriver were adding to the high nitrate levels. It was because of the excessive use of fertilizers and inadequate waste disposal techniques.
What are agrochemicals?There are chemicals that are used in agriculture. It includes fertilizers, pesticides, nematicides, insecticides, etc.
How does farm upriver add nitrate?The farms upriver used to apply agrochemicals, especially the ones rich in nitrate and urea. During fewer water conditions they used to apply more. That used to remain in the soil and washed down to the river along with the rain.
The farms did not use adequate waste disposal measures and hence the wastes rich in nitrogen were washed down to the river.
Hence, these practices increase nitrate levels in the river.
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where are the five places beavers can usually be found (bodies of water)
Answer:
They live in or around freshwater ponds, lakes, rivers, marshes and swamps.
Explanation:
If a mother is a carrier of the recessive gene (Xx) for hemophilia and
there is a 25% chance of having a child with hemophilia, what must the
father's genotype be?
Answer:If she gets the X chromosome with the hemophilia gene she will be a carrier. So a carrier's daughter has a 50% chance of being a carrier. A woman who is a carrier has: a 25% (one in four) chance of having a daughter who is a carrier.
Explanation:
please help im rlly stuck
Answer:
c
Explanation:
Study the diagram of a cell.
Which structures are found in both plant and animal
cells?
Wand X
W and Z
X and Y
Y and Z
Answer:
W and Z
Explanation:
Answer:BBBBBB
Explanation:
Because I got it right on the asihnement
Salivary amylase is an enzyme in humans that breaks down starches. What substances would humans have difficulty digesting without this enzyme
Group of answer choices
Answer:
Carbohydrates
Explanation:
High in fats and very fatty
In the absence of salivary amylase, humans would have difficulty digesting carbohydrates.
What is salivary amylase?Salivary amylase is produced by the salivary glands located towards the back of our mouth. Salivary amylase is a very small percentage of the total amount of amylase produced by the body.
Most of the amylase in the body is secreted by the pancreas. Salivary amylase is secreted in the saliva. This begins the process of the breakdown of food in the mouth itself.
Salivary amylase breaks down carbohydrates into maltose units which is a disaccharide. The maltose is ultimately broken down into glucose.
Carbohydrates are a very significant portion of the diet of a large percentage of the global population. Various kinds of bread and rice have a large portion of them composed of carbohydrates.
Therefore, in an absence of salivary amylase, humans would have difficulty digesting carbohydrates.
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Which molecules are involved in protein synthesis?
ribosomal RNA, transfer RNA, and mutagens
messenger RNA, ribosomal RNA, and transfer RNA
messenger RNA, introns, and ribosomal RNA
transfer RNA, introns, and mutagens
Which organelle is found in plant cells only? A.7 B.1 C.3 D.6