Hello. It is not possible to make a report of your class in the laboratory, without having attended that class. For this reason, I will show you how this report can be written. I hope it helps you.
You should start your report with an introduction. This will be a short paragraph, where you will present the laboratory where the class was held, the time and date. Then you will give a brief presentation of what was observed during that class.
In a second paragraph, you will start by explaining better, all the elements of the class, what was discussed and what equipment was used. You should also show all the activities done in the laboratory in the most detailed way possible. This paragraph can be divided into more than one paragraph, if you have a lot of information to tell.
Finally, you should end the report with a conclusion, showing what you have learned from this experience.
Which of the following size of stars will survive the longest?*
less massive stars
medium sized stars
more massive stars
1. All proteins are made up of 20 amino acids, but still, some protein takes up the function of the enzyme and some act as a transport protein. What determines protein functioning?
Answer:
ribosomes
Explanation:
I need help please ?!!!!
Answer:
Answer is C circuit
Explanation:
For each of the following minerals, say what properties of the material make it important in carrying out it's particular function.
a. tar roads
b. iron bulgar bars
c. plastic furniture
d. metal jewellery
e. clay for building
f. cotton clothing
Answer:
1. Tar Roads: The qualities of Tar that makes it ideal for road construction are:
The tar-like material that is used for road construction is a combination (emulsion) of water and liquid asphalt. It serves the purpose of permeating and closing up small lacerations in the existing pavement.
When the emulsion sticks to the "gravel" it reduces the potential for vehicles to skid on the road thus enhancing safety. The "gravel-like" emulsion is applied by rolling and sweeping.
Qualities of Tar are:
Adhesive: its the ability to stick to surfaces including materials such as gravel which it holds together makes it great for road construction;Waterproof: It is not water-soluble. Hence is not easily susceptible to the effects of running water. Resistant to High Temperature: The melting point of Tar is 54 degrees centigrade. The ground can heat up to 45 degrees celsius thus making Tar perfect for road construction as it can remain rigid even in the worst temperatures.2. Iron Burglar Bars
Steel bars are made from iron. The qualities of steel which make it perfect for securing places and things are:
Strength; This is the ability to withstand breakage and or destruction. Toughness: Steel is very tough and can not easily bend or break under static loads. Weldability: Most steel bars are actually welded together. Without this ability, steel probably would be useless as a material that can be used for protectionDurability: The only factor that degrades steel is rust. Rust happens when steel is exposed to oxygen which can be found in air and water.3.) Plastic Furniture
The primary qualities of plastic that make them suitable for furniture are:
Chemical stability: It does not rust or degrade when exposed to weather elements such as oxygen, water, etc. Good impact resistance: Depending on its thickness, plastic can bear a lot of weight and can take a lot of impact without deforming or breaking Good transparency and wear resistance: Plastic can be made transparent. This quality is essential for aesthetic purposes and hence can be used for various kinds of good-looking furniture. As furniture, its surface does not come off like hence it's durability.Low thermal conductivity: This means that it can bear heat without transmitting it easily. Ability to General formability, good coloring, low processing cost.4) Metal Jewellery
One of the best metals for jewelery is Tungsten. This is so because it is more durable and stronger than any other kind of material that can be used for jewelery purposes. It is about ten times harder than 18K gold and about four times harder than titanium. Other materials that can be used are:
titaniumstainless steel and cobalt5) Clay
In it's raw form, clay used for building might not be the best idea as it susceptible to water absorption and hence deformation which generally leads to a collapse of the structure. However, it becomes an excellent material of choice after it has been hardened into brick.
Brick is preferred in construction due to the following qualities:
hardnessHigh Compressive strength, Low Water AbsorptionFrost resistanceFireproofGreat Insulation6) Cotton is usually preferred as the material of choice for most kinds of clothing due to the following qualities:
Softness. The cotton plant is soft and fluffy and results in a fabric often retains that soft feel. Durability: Its molecular structure makes it able to last very long. Absorbency: it is able to absorb moisture/water. Hence making it more comfortable than synthetic materials High Dye Tolerance: Ability to hold dye well is an indespensable quality of a good fabric. You don't want to have a fabric whose colours are quick to fade. Breathability: This reduces is very important especially during summer or when the weather or environment is very hot.Cheers
The tar is roads that have quantities to make them deal with the construction. The liquid is a mix of asphalt and can be adhesive and waterproof.
The iron bars are used for securing the place and things. plastic furniture is used to make suitable furniture and is used for chemical stability etc. The metal jeweler is of titanium, cobalt and stainless steelLearn more about the following minerals.
brainly.com/question/26208691.
5. A duck flies 60 meters in 10 seconds. What is the duck's speed? a. 600 m/s b. 50 m/s c. 6 m/s d. 70 m/s 10 Dointe
Answer:
Duck speed =60m/10s
=6 m/s
Explanation:
The process where the organism with the best traits survives and passes on its DNA is:
Evolution
Adaptation
Natural Selection
Variation
Which shape is most similar to that of DNA?
A chicken egg
A line of spheres, each smaller than the one before it
A series of figure eights wound around each other
Two wires twisted together
Answer:
in my personal opinion, i think what the shape of DNA best compares to is:
c. a series of figure eights wound around each other.
hope that helps :)
this is my first answer on brainly btw !
Question 8 Multiple Choice Worth 2 points)
(10.02 MC)
After raining for most of the day, it started to snow in the evening. Which weather change is most likely responsible for this change?
O A decrease in temperature
O A decrease in wind speed
An increase in pressure
O An increase in the number of clouds
Answer:
The answer is A.
Explanation:
Soils in different regions differ based on the _______.
a.
local climate
b.
topography of the land
c.
native organisms
d.
all of the above
Answer:
I think the answer should be local climate
Answer:
i think it's D.
Explanation:
because i just want to do an anser on this thing
Plzzzz help i really need it
Answer:
3
Explanation:
The tomato plant and the oxalis plant both achieve a maximum CO2 utilization rate. Why do you think higher and higher light intensities do not cause an over increasing of CO2 use?
Answer: Higher and higher light intensities do not cause an over increasing of CO2 use because of other RATE LIMITING FACTORS that affects it's utilisation.
Explanation:
The tomatoe and the oxalis plants are examples of flowering plants which manufactures it's food through the process of photosynthesis. The conditions necessary for photosynthesis to occur leading to the production of starch and oxygen includes:
--> presence of sunlight
--> presence of carbondioxide
--> presence of chlorophyll and
--> presence of water.
The above conditions are factors that can affect the rate of photosynthesis occuring in a plant. Increasing a particular factor can lead to another factor being limiting. An example is the effect of increased light intensity on carbondioxide utilisation. Increase in light intensity could lead to excess evaporation of water from the plant. This will interfere with the light stage of photosynthesis by affecting photolysis of water. If this occurs, carbondioxide won't be reduced to form sugar in the dark stage of photosynthesis since there won't be hydrogen provided by the co-enzyme NADP (Nicotinamide adenine dinucleotide phosphate).
The Earth is the only planet known to support life. Which of the following is a major contributing factor to the Earth's ability to support
life?
A) The Earth has a magnetic field with north and south poles
B) The earth has an iron-rich core and is made mostly of rock
C) The Earth orbits the Sun and is orbited by the moon
D) The Earth is surrounded by a layer of air that includes oxygen
Answer:) The Earth has a magnetic field with north and south poles
Explanation:
Which of the following could help reduce waste buildup in heavily populated areas?
A.
packing your lunch in a reusable bag instead of a paper bag
B.
using washable dishes rather than disposable plates and utensils
C.
recycling paper, plastics, metals, and glass
D.
all of these
Answer:
I think its option 3
Explanation:
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What you know about photosynthesis
Answer:
1. Plants use photosynthesis.
2. Photosynthesis uses water, carbon dioxide, and sunlight to make sugar.
3. Photosynthesis makes oxygen for animals to breathe.
Name of the upper limb
Answer:
I hope this helps u! :D
What is the general pattern of magma circulation in the mantle?
Answer:
Observe : Earth's mantle is a zone of semi-molten rock, or magma, found between the solid crust that makes up Earth's surface and the molten rock in Earth's outer core. ... What is the general pattern of magma circulation in the mantle? Moves up and down. 2.
The general pattern of magma circulation in the mantle is ; upwards and downwards towards the earth crust
The mantle is situated between the solid crust making up the earth surface and Earth's outer core and it is made of molten rocks which are heated up due to high pressures.
The mantle ( semisolid molten magma ) experiences an upward pattern of magma circulation and this is caused by mantle convection currents.
Hence we can conclude that the general pattern of magma circulation in the mantle is Upwards and downwards towards the crust.
Learn more : https://brainly.com/question/19884365.
Most of the hydrosphere is in what form?
freshwater
ocean water
groundwater
ice
Answer:
Ocean water
Explanation:
97.5% of the earth's water is contained in the ocean.
Which change is an environmental effect of burning fossil fuels?
Answer:
Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change
Explanation:
treating id :-852 664 6696 Passoodi :123
Answer:
Y=mx+b
Explanation: alr
The work-dock of the cell where proteins are made are?
A. Ribosomes
B. Lysosomes
C. Mitochondria
D. Golgi
Answer:
A.Ribosome
Explanation:
I hope that help
The work-dock of the cell, where proteins are made, is Ribosomes. The correct option is A.
What is ribosome?Ribosomes are small spherical organelle present in the cells. Ribosomes are the place where the synthesis of protein occurs. Ribosomes are present at the end of the endoplasmic reticulum.
Thus, the correct option is A.
Learn more about ribosome
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Explain what happens to an atom when the number of protons, neutrons, or electrons changes, while the number of the other two particles remains the same.
Answer:
oxidizes or reduces
Explanation:
the particles that maintain the same charge is because they are neutral and their charge is zero or zero.
What occurs when Two species have the need for the same resource
Answer:
Competition
Explanation:
since they need the same resource they will have to fight for it.
good luck on your mid-term!! i know it's quite stressful. but you can do it :)
Answer:
c
Explanation:
The scientific name for a giraffe is Giraffa camelopardalis. What two levels of
classification does this name represent?
A. Family & order
B. Kingdom & genus
C. Phylum & domain
D. Genus & species
Answer:
Genus and species are the two levels of claffication does the name giraffa represents
1. The expression of Hitchhikers thumb is due to recessive gene expression and you can express it. Use alphabet H. What is your genotype?
Use your knowledge of amino acids for energy metabolism to select the term that best completes each description. Glucose cannot be made when amino acids are converted to_________ . In the TCA cycle, some amino acids enter directly and, therefore, can continue in the cycle to generate energy and_______ . When is available, the body can use and glycerol to make some non-essential amino acids.
Answer:
Acetyl CoA; glucose
Explanation:
Acetyl-CoA is a molecule known to be part of different reactions during carbohydrate, protein, and lipid metabolism. Pyruvate (also known as pyruvic acid) is a molecule whose decarboxylation produces acetyl-CoA. Glucose cannot be synthesized when amino acids are converted to Acetyl CoA because this molecule (Acetyl CoA) cannot be converted back to pyruvate. The citric acid cycle (CAC), also known as the tricarboxylic acid (TCA) cycle, is a group of biochemical reactions that release energy by oxidation of acetyl-CoA obtained from sources such as proteins, carbohydrates and fats. During amino acid metabolism, glucogenic amino acids and TCA intermediates can be converted into glucose through gluconeogenesis.
Name the blood vessel which supplies the heart muscle with blood.
Answer:
Coronary arteries supply blood to the heart muscle.
Explanation:
What climate condition occurs during El Niño?
dry heat throughout North America
>>warm water moving toward the coast of South America
heavy rain moving toward the coast of South America
flooding throughout North America
Answer: "warm water moving toward the coast of South America"
Explanation:the change in the temperature of the water in the Pacific ocean contributes to the rise in temperature in the air and on land as well. During El Niño, the temperature in the area of the tropical Pacific ocean increases, so there is usually a surge in wildfires and rainfall.
Answer:
the upper mate is correct
For tetracycline , describe an experiment that you could
use to determine if a bacterial sample taken from a person was
resistant to your antibiotic. Be sure to describe all steps of the
experiment including your independent, dependent and control
variables.
Answer:
penicillin was the first antibiotic discovered. Alexander Fleming discovered it in 1928. It was used widely during World War II. However, the sulfonamides were the first antibiotic class used clinically (in the 1930's). The discovery of antibiotics revolutionized medicine by making once-deadly infections treatable. There are now hundreds of antibiotics, classified into several categories. These antibiotic classes include:
Explanation:
sana makatulong!
Describe the difference between the melting points of ethene and poly (ethene)
Answer: Poly(ethene) has a higher melting point than ethene. The reason can be seen in the explanation below.
Explanation:
Ethene is one of the most important alkene hydrocarbons which is one of the main products obtained during the cracking of the gas oil fraction of petroleum.
Polymerization is a process whereby two or more simple molecules are linked to form a much larger molecule usually called polymers. Poly( ethene) is formed when ethene and it's derivatives undergoes polymerization reaction. Therefore poly( ethene) is a polymer of ethene.
To describe the reason why there is higher melting point in poly (ethene) than ethene is that poly( ethene) consists of very long chain carbon atoms which are held together by a strong covalent bonds. There are greater intermolecular forces between the long chains compared with smaller simple molecules like ethene.
What are the possible results of speciation?
Answer:
Speciation is an evolutionary process by which a new species comes into being. A species is a group of organisms that can reproduce with one another to produce fertile offspring and is reproductively isolated from other organisms. Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time. There are a number of different mechanisms that may drive speciation. One of these is natural selection, which is a process that increases the frequency of advantageous gene variants, called alleles, in a population. Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation. A second process called genetic drift describes random fluctuations in allele frequencies in populations, which can eventually cause a population of organisms to be genetically distinct from its original population and result in the formation of a new species.
Explanation:
