Only the independent variable in the experiment was changed.
Explanation:
Step 1: Define your variables. You should begin with a specific research question. ...
Step 2: Write your hypothesis. ...
Step 3: Design your experimental treatments. ...
Step 4: Assign your subjects to treatment groups. ...
Step 5: Measure your dependent variable
what by-product is produced when cereal grains are being screened and cleaned, which has a quite variable composition?
The by-product which are produced when cereal grains are being screened and cleaned are bran and endospermic tissue which are removed from the cereal grains.
What are cereals?Cereals are the staple food that are the major source of nutrition for the whole world. The bran of cereal is obtained from the process of milling as by-product and it contains various advantages such as they contain health promoting constituents such as minerals, vitamins, dietary fibers, polyphenols, as well as phytosterols.
Cereal grains are used for the food of humans and they are the basic source of food for humans and it has a great variety and majority is used directly. They are also great source of food for animals.
Therefore, The by-product which are produced when cereal grains are being screened and cleaned are bran and endospermic tissue which are removed from the cereal grains.
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Please answer the following questions based on the titration curve:
1. From the plot, determine the number and types of titratable groups for the unknown amino acid.
2. Determine best you can the experimental pKa values for each titratable group from the plot
3. Determine best you can the molecular weight of your unknown amino acid from data obtained from
your plot.
4. Calculate the isoelectric point of your sample. a) What is the definition of isoelectric point? b)
Where would you find the isoelectric point on a titration curve?
5. What is the identity of your unknown amino acid? Justify your conclusion by comparing the
observed molecular weight and pKa values to those for all of the amino acid
Titration is a useful tool in the determination of amino acid side chains and the ionizable groups. There are two titratable groups for the unknown amino acid. These are α-COOH and α-NH₃⁺. The experimental pKa values for the groups are- pK₁ = 2.35 for α-COOH and pK₂ = 9.78 for α-NH₃⁺.
What is Isoelectric point?Amino acids are the organic compounds that contain both amino and carboxylic acid functional groups. Isoelectric point (pI) is the pH at which the net charge on an amino acid is zero. The isoelectric point of the given amino acid can be calculated by the formula:
pI = (pK1+pK2)/2 = (2.35+9.78)/2 = 6.065
Isoelectric point will be in the middle part of the curve in the buffer region. Buffer region is the section of curve between the initial point and the equivalence point.
The unknown acid would be glycine. The curve gas two dissociation steps- loss of H⁺ from the carboxyl group at low pKa value and gain of H⁺ by the amino group at high pKa value.
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If someone helps me with this I will give brainiest.
Answer: One reason is the Co2 (Carbon Dioxide) in the air may cause the algae growth.
Explanation:
Carbon dioxide has been known to cause excessive blue or green algae.
How does a fast moving stream respond and adjust to changes?
Answer:
A stream does not respond and adjust to changes,
Explanation:
because it does not react to changes in environment.
7. Heat tolerance in flies is a heritable trait. The variation in heat tolerance across a population of flies can be measured by subjecting groups of 100 flies to different temperatures and measuring the percentage of flies that survive. The following graph shows the distribution of heat tolerance across one species of fly living in hot desert regions of Africa. Predict what will happen to the size of this population and its allele frequency if a massive heat wave descends on the area in the future, bringing daily temperatures to 42°C and lasting several months of time.
All flies that can't tolerate 42°F will die. Only high-temperature-tolerant alleles are handed down.
'This is further explained below.
What are alleles?Generally, One of two or more variants of a DNA sequence (either a single base or a segment of bases) at a specific position within the genome is known as an allele.
In conclusion, All of the flies in the population that are unable to withstand temperatures higher than 42 degrees Fahrenheit will perish. Only those alleles that are responsible for high-temperature tolerance will be passed down to subsequent generations.
The populace will get used to the heat.
The survival curve will begin to ascend after a few months have passed.
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Bobby drives 1,200 miles in 8 hours what is his average speed (s=d/t)
Answer: 150 mph, no explanation needed, just simple math
Answer:
150
Explanation:
1,200 divided by 8 is 150.
Hope It Helps
Sorry If I'm Wrong
Which statement best represents how structure relates to function?
O Parrots typically lay clutches of 2-4 eggs per year.
O Longer legs and different hip bones let modern humans walk upright.
O Hummingbird feathers come in a wide variety of iridescent colors.
O When a sandhill crane finds a mate, it bonds for life.
The statement that best represents how structure relates to function is as follows: longer legs and different hip bones let modern humans walk upright.
What is structure and function?The structure of a biological organism refers to the arrangement or organization of parts to form an organ, system, or living thing.
The structure of an organism determines the adaptation and survival of that organism in its natural environment because these structures perform functions that are germane to its survival.
Some common examples of structures in living organisms and their functions are as follows:
Radula in snails - for feedingHorns - for protection against intrudersClaws - for holding on to preyTherefore, the statement that best represents how structure relates to function is as follows: longer legs and different hip bones let modern humans walk upright.
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9. A flowering plant species grows on the mainland near the coast. One summer, a tropical storm blows seeds from this population several hundred miles out to sea. Some of the seeds land on an island, where they form a new population. Describe two ways that speciation could occur in this situation. Include the concepts of genetic drift, gene pool, reproductive isolation, and selection in your description.
Allopatric or peripatric speciation are the two types of speciation that might take place in this circumstance.
Allopatric vs peripatric speciation :Physical barriers prevent members of the groups from interbreeding, just like in allopatric speciation. Peripatric speciation, as opposed to allopatric speciation, is characterized by a large size disparity between the two groups.
What is the difference between peripatric and parapatric?The two diverging species still interact geographically during parapatric speciation, but there is selection against genetic exchange because of the disadvantage of heterozygotes. Because there is no contact between diverging populations during peripatric speciation, it is different from parapatric speciation.
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State 3 characteristics of a lipid.
Answer:
Fats, oils, and lipoproteins
Kelp is a representative of the
Answer: Seaweed.
Hope this helps <33
what does the pH scale indicate
Answer:
pH is a measure of how acidic/basic water is
Explanation:
The
of a microscope refers to the ability to distinguish clearly between two
adjacent, but distinct, objects.
Answer:
resolution
Explanation:
Resolution is the ability of the lenses in the microscope to clearly distinguish between two adjacent objects as distinct and separate.
A compound light microscope has a maximum resolution of 0.2 µm, which means it can clearly distinguish between two adjacent, but distinct objects. Any objects closer than 0.2µm will be seen as 1 object.
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What characteristic must physical properties have in order to use them to classify matter
Answer:
Physical properties are characteristics that describe matter. They include characteristics such as size, shape, color, and mass.
Explanation:
Hope this helped.!
Question 14 of 25
The development of cars has been good in some ways and bad in others. The
car has allowed for better transportation but it is also responsible for a great
deal of pollution. Which activity helps solve the pollution problem through the
use of new technology?
OA. Encouraging people to walk more
OB. Encouraging people to ride a bus
O C. Building fewer cars
OD. Building cars that give off less pollution
SUBMIT
Answer:
the bus they are riding also causes harm to nature and it will make most people very tierd
In terms of energy, which of these would be directly available to the consumer?
heat
respiration
egested waste
biomass
Answer:heat
Explanation:
Why would overfishing cause a starfish outbreak
Answer:
quote, "Cause of crown of thorns starfish outbreak
These outbreaks may be a result of overfishing of the crown-of-thorns starfish's primary predator, the giant triton or they may be a natural phenomenon. These starfish are known to be more successful at preying on large swaths of coral reefs when the corals are already stressed."
Crown-of-thorns Starfish - Oceanahttps://oceana.org
Explanation:
What molecule did Woese and Fox use to construct their polygenetic tree?
Answer:
16S ribosomal RNA
Explanation:
Carl Woese used the 16S rRNA gene to discover the third major domain of life, the archaea.
2. For
Mass number -
Atomic number-
Na
Sodium
22.989 7492
-Symbol of the element
Atomic mass
how many protons the atom has? How many neutrons? How many electrons?
Answer:
Na
Protons = 11
Electrons = ( protons = electrons )
= ( 11 = 11 )
= 11
Neutrons = ( Mass index - protons )
= ( 23 - 11 )
= 12
Explanation:
please make my answer as brainelist
Question 3 (5 points)
How many centimeters are in 5.7 meters?
Answer:570
Explanation:
There are 100 centimeters in one meter so if we have 5.7 meters we would multiply that by one hundred to get our answer of 570.
Please help!!!
Name 3 pairs that show a strong evidence that there is a difference between the populations. Explain why you chose those 3 pairs. Compare the locations to one another in pairs.
Answer:
Bombay,capehenlopen,rheboth
Explanation:
population can increading according the paychart that shown in the top there.
And you choose this answer?
What’s the answer???? This is biology.
Answer:
report results
Explanation:
an atom total number of electrons gives its
Cells are often called "the _____ of life."
Answer:
I think it is the "building blocks of life"
Explanation:
Cells are the smallest living things in our bodies and what helps keep us alive. Without cells we wouldn't have simple things like blood, muscles, and nutrients needed to survive.
Two test tubes labeled A and B
We set up another experiment in which we added the following enzymes:
Test Tube A = cellulase and Test Tube B = amylase. When the substrate
from the enzyme lab is added what would you expect to see happen in
each tube?
An enzyme-catalyzed reaction initially progresses at a faster pace as substrate concentration rises. This rise in rate of a reaction levels off as the substrate saturates the enzyme molecules.
An enzyme's concentration increases along with the speed of an enzyme-catalyzed process. The breakdown of the polysaccharide starch (amylose) into the disaccharide maltose is catalyzed by the enzyme amylase. Although it is easily abundant in saliva, obtaining high amounts might be uncomfortable. It is found throughout plant tissues, but it is most prevalent in seed, where that might play a role in starting the conversion of starch that has been stored into the much-needed glucose in enzyme-catalyzed process. The most prevalent organic polymer on earth is cellulose, a polysaccharide made up of a linear chain of 1,4-linked d-glucose subunits with such a degree of polymerization ranging from few hundreds to over ten thousand. An enzyme-catalyzed process is created when an enzyme binds to its substrate. This complex provides certain ions or chemicals groups that really establish chemical bond with molecule as a crucial stage of the reaction process, lowering the energy of activation and promoting its quick progression.
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The effects of different conditions on carrying capacity
if abiotic or biotic factors change, the carrying capacity changes as well, natural disasters can destroy resources in an ecosystem. if resources are destroyed, the ecosystem will not be able to support a large population. this causes capacity to decrease.
Assess the consequences of exponential population
growth of any population.
The consequences of exponential population growth of any population is that the supplies could someday run out, birth rates might increase or decrease, and it might reach its carrying capacity.
Exponential Population Growth- Exponential growth happens if a population's per capita growth rate is constant, regardless of population size, leading the population to increase dramatically as the population rises.
Birth Rate- The proportion of live births to 1,000 people in the general population in a given year.
Carrying Capacity- The maximum number of humans that a particular kind of animal or plant can sustainably support. The smallest number of a specific species that the environment can tolerate. The usual number of individuals of a certain species that the habitat can support.
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The opposing movement of dorsiflexion is:
Answer:
The opposing movement of dorsiflexion is Plantar flexionAnswer:
flexion is the opposite of dorsiflexion and involves moving the foot in a downward direction, toward the ground. Plantar flexion occurs when the foot is moved downward between 20 and 50 degrees.Aug 14, 2017
Explanation:
dorsiflexion refers to bending of the foot at the ankle or talocrural joint in the direction of teh dorsum. Its opposite movement is plantar flexion
How many gypsy moths are there now (what is there population?) 2022
Answer:
52,396
Explanation:
that's what G o o g l e said
cite two results of water’s high heat capacity that are essential for warm blooded animals ( endotherms ) ability to maintain thermal homeostasis
Answer:
People, polar bears, penguins, and prairie dogs, like most other birds and mammals, are endotherms. Iguanas and rattlesnakes, like most other reptiles—along with most fishes, amphibians, and invertebrates—are ectotherms.
Endotherms generate most of the heat they need internally. When it's cold out, they increase metabolic heat production to keep their body temperature constant. Because of this, the internal body temperature of an endotherm is more or less independent of the temperature of the environment. What is metabolism?
This pattern is shown on the graph below: the mouse maintains a steady body temperature close to 37\,^\circ \text C37
∘
C37, degrees, start text, C, end text across a wide range of external temperatures.