Answer:
Branches are sloping.
Trees have a cone shape.
The leaves have a needle shape.
The accumulation of snow is prevented by special structures.
Thick bark on trees.Explanation:
What is the name of the disease caused by a lack of thyroid hormones?
The β chains of HbA and HbS were treated with trypsin, and the sequence of the N-terminal tryptic peptides are as given below. Do these peptides separate from each other in an electric field if the pH is 7.0? Explain in detail the reasoning behind your answer and include your calculations for the charge of each peptide in your answer.
HbA: Val-His-Leu-Thr-Pro-Glu-Glu-Lys
HbS: Val-His-Leu-Thr-Pro-Val-Glu-Lys
Yes The two peptides will separate from each other in an electric field when the pH is 7.0
The two peptides wil drift/separate from each other when the pH is 7.0 because of the reaction of trypsin enzyme and also the difference in charge between HbA and Hbs
Considering charge of each peptide
Since The isoelectric point of normal Hba is 6.9 and Hbs possess two fewer negative charges per hemoglobin molecules
The Hbs is more hydrophobicity than HbA due to the substitution of glutamic acids of HbS by valine residue.
Considering Electrophoresis
At a lower pH level Hbs shows a slower moving band than Hba
while a higher pH level the HbS peptide is less negatively charged while the carboxyl group of HbA is more negatively charged and Hba moves faster as well as an acidic pH.
Hence we can conclude that the two peptides will separate from each other in an electric field when the pH is 7.0
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Calculate the percent change of a population of geese that started with 40 individuals.
12 were born and 8 died. 6 geese immigrated into the population.
Ansew heheheheheheh
Explanation:
25 points
Complete the sentence. Carbon flows between ____________, environmental storage centers that absorb and store carbon for long periods of time.
plants and animals
humans and air
rocks and soil
carbon sinks
Answer:carbon cycle
Explanation:
Answer:
it would be stored in plants in animals
Explanation:
those are one of our main sources of oxygen
what happens when an acid is added to a solution?
Answer:
pH is a measure of the concentration of H3O+ ions in a solution. Adding an acid increases the concentration of H3O+ ions in the solution. ... If an acid is added to a basic solution, the solution becomes less basic and moves toward the middle of the pH scale. This is called neutralizing the base.
Which statement accurately compares these flashlights?
O A. The smaller flashlight has less inertia than the larger flashlight, so
it takes less force to change the motion of the smaller flashlight.
O B. The smaller flashlight has more inertia than the larger flashlight,
so it takes more force to change the motion of the smaller
flashlight.
C. The smaller flashlight has less inertia than the larger flashlight, so
it takes more force to change the motion of the smaller flashlight.
O D. The smaller flashlight has more inertia than the larger flashlight,
so it takes less force to change the motion of the smaller
flashlight
The smaller flashlight has less inertia than the larger flashlight, so it takes
less force to change the motion of the smaller flashlight.
Inertia is defined as the property of an object to resist changes in its velocity
when in motion. A larger or bigger body has more mass and inertia as it
requires more force to change the direction of the object.
The smaller flashlight has less inertia than the larger flashlight and hence
requires less force to change its motion due to its smaller size.
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can someone please help me on this all u have to do is search up on the internet and then put down 4 facts that are mentioned in the web site and give the main idea to but make sure I know were the main idea is
web site: should we bring back extinct species
need help with the top question :p
I don’t wanna go to school
Answer:
Sorry about that
Explanation:
what is sugar converted into if your body does not metabolize it
Answer: It's starts burning body fat.
Explanation:
Which of the following is NOT an example of a phenotype?
a. Wheat resistance to fungal infection
b. DNA sequence of the alcohol dehydrogenase gene
C. Color of a feather
d. Height of a giraffe
Pleaseeee someone help me . What is the half life of Caron 14 of this problem ???
Answer:
5730 years
Explanation:
In a chemical reaction, including radioactive decay, the half-life of a species is the time taken for the substance to decrease to exactly one-half its initial value.
For a first-order reaction, the half-life of the reactant is
[tex]t_{\frac{1}{2}} \ = \ \displaystyle\frac{\ln 2}{\lambda} \ \ \ \ \ \ (1)[/tex],
where λ is the reaction's rate constant modeled by the differential equation describing the kinetics of a first-order reaction
[tex]N \ = \ N_{0}e^{-\lambda t} \ \ \ \ \ (2)[/tex],
where N is the remaining amount of substance after time t and [tex]N_{0}[/tex] is the initial amount of substance before the chemical reaction proceeds.
Since the value of λ is constant, rearrange equation (1) with λ as the subject,
[tex]\lambda \ = \ \displaystyle\frac{\ln 2}{t_{\frac{1}{2}}}[/tex].
Given that only 12.5% of carbon-14 remained after 17190 years assuming that initially there was 100% of carbon -14, substitute in the values into equation (2) and solve for λ (make λ the subject of the equation),
[tex]\-\hspace{0.56cm}12.5 \ = \ 100e^{-\lambda \times 17190} \\ \\ \-\hspace{0.5cm} \displaystyle\frac{12.5}{100} \ = \ e^{-17190\lambda} \\ \\ \displaystyle\frac{\ln\displaystyle(\frac{1}{8})}{-17190} \ = \ \lambda \\ \\ \-\hspace{1.05cm} \lambda \ = \ \displaystyle\frac{3\ln2}{17910} \ \ \ \ \ \ \ \ \ \ (\ln \displaystyle\frac{1}{x} \ = \ -\ln x\ ; \ \ln x^{n} \ = \ n\ln x )[/tex]
Equate both λ,
[tex]\displaystyle\frac{\ln 2}{t_{\frac{1}{2}}} \ = \ \displaystyle\frac{3\ln2}{17190} \\ \\ \-\hspace{0.26cm} t_{\frac{1}{2}} \ = \ \ln 2 \ \times \ \displaystyle\frac{17190}{3\ln2} \\ \\ \-\hspace{0.26cm} t_{\frac{1}{2}} \ = \ \displaystyle\frac{17190}{3} \\ \\ \-\hspace{0.26cm} t_{\frac{1}{2}} \ = \ 5730[/tex]
*Note that the above calculations demonstrated that carbon-14 went through 3 half-lives to yield a remaining 12.5% of its original amount, since
[tex]100\% \ \overset{t_{\frac{1}{2}}}\longrightarrow \ 50\% \ \overset{t_{\frac{1}{2}}}\longrightarrow \ 25\% \overset{t_{\frac{1}{2}}}\longrightarrow \ 12.5\%[/tex].
Therefore, if n is the time taken for carbon-14 to half its initial amount trice to remain 12.5% of its initial amount. Then, the half-life of carbon-14 is [tex]\displaystyle\frac{n}{3}[/tex].
When Sam cut open an apple he found only four seeds. Can you explain why?
Answer:
Yes
Explanation:
it is depend on the fruit of apple
=
Which of the following is a way that minerals are used?
a. industry
b construction
C technology
d. all of the above
Please select the best answer from the choices provided
A
ООО
0 0 0
Answer:
D.
Explanation:
If the chloroplasts of a plant cell are damaged, which will it be unable to do?
a. protect the cell
C. excrete waste materials
b. make food for the cell
d. give instruction to the cell to reproduce
Answer:
Make food for the cell
Explanation:
Since the purpose of the chloroplast is to create energy for the cell, should it be damaged it would lose its ability to do so.
Hopefully this is a better answer
Answer:
I believe it is b
Explanation:
Chloroplast help to produce food and uses the suns sun rays or energy given off of it to produce one it’s green color and it well the food
According to Hebrews 11, what did Abraham believe God would do if Isaac was slain as a sacrifice?
Abraham believed that God could raise Isaac from the dead or more specifically that he could raise the Dead
Lipids are what?
proteins
acids
fats
amino groups
Simone is creating a model to track the movement of carbon atoms in an ecosystem. Which statement best explains the role of plants in Simone's model?
Although I cannot see the model for Simone's experiment, I can offer the insight that the most likely role of plants in the model is that they consume the carbon atoms and produce oxygen.
How do plants affect the carbon in the atmosphere?Plants are known to have a great effect on the carbon levels of the atmosphere. The correlation is that the more plants are present, the less carbon is free in the air. The reason for this is that plants use carbon dioxide as a substrate to manage the process of photosynthesis.As a by-product, after consuming carbon dioxide and completing photosynthesis, plants release oxygen into the atmosphere.Therefore, we can confirm that the most likely role of plants in the model created by Simone, is that they will consume carbon atoms in the form of carbon dioxide in order to sustain photosynthesis, which releases oxygen.
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All of the following would result in a population increase except
- a high rate of immigration
- a higher death rate than birth rate
- a low rate of emigration
- a low birth rate
Which of the following ecological levels does not describe interacting biotic and abiotic factors in an area?
A. Biome
B. Community
C. Ecosystem
D. Habitat
Answer:
habitat
Explanation:
The ecological levels do not describe interacting biotic and abiotic factors in an area's habitat. The correct option is D.
What is a habitat?
A habitat is a place where physical or biotic factors are presented. This is a place where all the factors are present to live a species with all suitable conditions.
Habitat of different species is different. They live in their suitable habitat to grow and reproduce accordingly. If a species is moved from its habitat, then it may have difficulties in surviving.
So habitat is not a place where all biotic and species abiotic factors are present, it is a place where all living factors are present that are necessary for the living of a person. So, it is not the ecological level of interacting biotic and abiotic factors in an area
Thus, the correct option is D. Habitat.
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#SPJ2
is the chemical reaction below A. Kinase B. mutase C. dehydrogenase D. isomerase E. none of the above
Answer:
I think it's either mutase or dehydrogenase, but I'm not exactly sure why. I haven't taken a chemistry class yet, so I don't know too much about it TBH.
I don’t understand help
Answer:
A
Explanation:
not 100% sure but it seems to be the only sensible answer
Why is it that dominant diseases are not as common as recessive ones?
Answer:
Mainly because if a disorder is dominant, then it will be manifested by all who have the gene. If the disorder is severe, then it will reduce the chances of the individual surviving to grow up and reproduce (unless the disorder only manifests symptoms in later life). If they do reproduce, then 50% of their offspring will inherit the gene, and be at a similar disadvantage in reproduction. Thus, there is likely to be selection against the gene. By contrast, a recessive disorder is only manifested if both parents pass on the abnormal gene, and an individual with one gene for the disorder is usually at no disadvantage. Thus, there is much less selection against abnormal recessive disorders.
A scientist makes the argument that she has found DNA evidence that shows that evolution does not exist. What
would her evidence have to show for her to be correct?
Strong genetic similarities in closely related organisms and weak genetic similarities in distantly related
organisms
Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related
organisms.
Strong physical similarities among closely related organisms and also among distantly related organisms.
o Weak physical similarities among closely related organisms and also among distantly related organisms.
An evidence that shows that evolution does not exist is: Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related.
WHAT IS EVOLUTION:Evolution is process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth. This means that organisms that evolve from the same lineage are expected to have similar genetic similarities.Therefore, an evidence that shows that evolution does not exist is: Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related.
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Answer:Its B
Explanation:
How would a harsh winter most likely affect the rabbit population size?
Answer:
In harsh winter, usually there's less food, therefore, rabbits will not be able to find enough food and the population of rabbits will decrease.
What is carbon?
A. an element
B. a compound
C. an
organism
This is my teacher/daughter
thats nice :)
also hi hru
Which answer lists the three types of tundra?
Arctic, alpine, and coniferous
mountain, desert, and Antarctic
Arctic, desert-like, and treeless
Arctic, Antarctic, and alpine
Answer:
Arctic, Antarctic, and Alpine
Arctic, Antarctic, and alpine
Which of the following is NOT considered a form of precipitation? *
Rain
Snow
Lightning
Hail
All of the above are considered precipitation
Answer:
Lightning is not considered a form of precipitation but rather a discharge of electricity.
what would happen to an organism if mitosis did not occur
If mitosis DID NOT happen... the organism would stay as a single cell. The life we know it now... wouldn't exist as we have multi-cellular stuff.