2. What was the instrumentation Franklin used to determine the structure of DNA?
Multiple choice question.
A)X-ray diffraction
B)spectroscopy
C)electron diffraction
D)chromatography

Answers

Answer 1

Answer:

D)chromatography

Explanation:

cause that you get the fingerprints


Related Questions

How can electromagnetic waves be used to fight a forest fire?

Gamma ray images can show hot spots as radioactive areas.
Ultraviolet images can show hot spots as fluorescent areas.
X-ray images can show hot spots as white areas.
Infrared images can show hot spots as red areas.

Answers

Answer:  the answer to this is D because these rays can show you where the fire is located even if it is enveloped in a cloud of gray and black smoke that prevents you from seeing it.

Explanation:

The electromagnetic waves be used to fight a forest fire should be option D. Infrared images can show hot spots as red areas.

Reason of why electromagnetic waves be used to fight?

The gamma-ray images should represent hot spots just like the radioactive areas.

The ultraviolet images represent the hot spots just like the fluorescent areas.

Also, these rays should represent where the fire is located also the black smoke prevent you.

hence, The electromagnetic waves be used to fight a forest fire should be option D. Infrared images can show hot spots as red areas.

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GIVING BRAINLIEST!!!

Two environmental changes are described below:

Environmental change 1: Many small tree saplings are competing for sunlight on the forest floor.
Environmental change 2: Many bluebirds have become ill with the infectious West Nile virus.

Which statement is true about these environmental changes?

A) Environment change 1 is increased predators and environmental change 2 is climate change.
B) Environment change 1 is pollution and environmental change 2 is disease.
C) Environmental change 1 is reduced space and environmental change 2 is disease.
D) Environmental change 1 is reduced space and environmental change 2 is lack of food.

Answers

Answer: I would say answer C

Explanation:

The statement which is true about these environmental changes is that the Environmental change 1 is reduced space and environmental change 2 is disease. Thus, the correct option will be C.

What is Environmental change?

Environmental change can be defined as a change or any disturbance of the environment which is most often caused by human influences and the natural ecological processes. Environmental changes are the effect of changes which include various factors, such as natural disasters, human interferences, or the animal interaction.

The statement which is true about these environmental changes is that the Environmental change 1 is reduced space and environmental change 2 is disease. This is because, in environmental change 1 the different species compete for resources and in environmental change 2 the species are affected with infectious virus.

Therefore, the correct option will be C.

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How do biotic and abiotic factors contribute to the health of an ecosystem?

Answers

Answer:

A

Explanation:

Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations.

causes of over fishing

Answers

Answer: The causes of overfishing can change the size of fish remaining. When too many fish are taken out of the ocean or lakes it creates an imbalance that can erode the food web and lead to a loss of other important marine life, including vulnerable species; like sea turtles corals and seaweed.

Hope this helps :)

In mice, black color (B) is dominant to white (b). At a different locus, a dominant allele (A) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance know as agouti. Expression of the recessive allele (a) results in a solid coat color. If mice that are heterozygous at both loci are crossed, ___ out of 16 will be black in color.

Answers

Answer:

3

Explanation:

Heterozygous mice at both loci would be BbAa genotype.

B (black) is dominant over b (white) but the presence of A results in agouti.

Crossing two heterozygous:

     BbAa    x    BbAa

Progeny

9 B_A_ - Agouti

3 bbA_ - agouti

3 B_aa - Black

1 bbaa - white

Hence, 3 out of 16 progeny will be black in color.

See the attached image for the Punnet's square analysis of the cross.

How did New Zealand's early ecology affect which traits were selected for/against in the kakapo's ancestors?

Answers

Answer:

Hairy skin which helps kakapo's ancestors to live in harsh climate of New Zealand.

Explanation:

New Zealand's early ecology greatly affected the population of kakapo's ancestors because the environmental conditions for kakapo's ancestors are favourable and there is no invasive species which reduces the population of kakapo's ancestors near to extinction. The traits that were selected for the kakapo's ancestors provides ability to live and survive in the temperate and subtropical climates of New Zealand. The flightless trait in this bird is also responsible for its extinction because this bird can't run away from their predators.

0330 (Tuesday)- It has been said that living
organisms are nothing more than sacks of
chemicals and chemical reactions? Do you agree
with this? Why or why not?

Answers

i disagree because they are living things

Human Immunodeficiency Virus (HIV) is a virus that infects (and destroys) Helper T Cells. As a result, people who are HIV+ generally have a low number of these T Cells. How would the dramatic decrease in Helper T Cells caused by HIV affect a person’s immune response? Be specific using details from what you learned about the immune response.

Answers

Answer:

HIV invades various immune cells (e.g., CD4+ T cells and monocytes) resulting in a decline in CD4+ T cell numbers below the critical level, and loss of cell-mediated immunity − therefore, the body becomes progressively more susceptible to opportunistic infections and cancer.

HIV infects and deletes CD4+ T cells that normally coordinate the adaptive T- and B-cell response to defend against intracellular pathogens. The immune defect is immediate and profound: At the time of acute infection with an AIDS virus, typically more than half of the gut-associated CD4+ T cells are depleted, leaving a damaged immune system to contend with a life-long infection.

Use the Weather probe to measure the land-air and ocean-air temperatures. What are these temperatures at this time?

Answers

Answer:

Use the Weather probeto measure the land-air and ocean-air temperatures. What are these temperatures at this time? 29.1 degrees and 22.2 degrees, respectively. C.

Explanation:

By using the Weather probe to measure the land-air and ocean-air temperatures. It is found that the temperature of land air is found be 29.1°C and the temperature of ocean air is found to be 22.2°C.

What is a weather probe?

A weather probe may be defined as an observation post where weather conditions and meteorological data are considerably observed and recorded under controlled conditions. While weather governs the state of the air and atmosphere at a particular time and place.

According to the context of this question, a weather probe determines a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate.

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DNA is not useful during
A) replication
B)transcription
C) proteins synthesis
D) mitosis

Answers

Answer:

D. mitosis

Explanation:

I wade out the options dna is useful during protein synthesis because the dna controls the synthesis of proteins in transcription where mRNA is built on a DNA template and DNA replicate it self

To ensure renewable energy resources, government regulations require logging companies to replant trees after they clear-cut a forest. why is clear-cutting still a concern for the environment ?

Answers

Answer: A

Why? It doesn’t kill all living animals(might kill some). No acid rain, and may cause extinction of plants but not most plants. So it has to be A

Why are there many, many more craters on the "outer back" side of the moon than there are on the "inner facing" side of the moon?

Answers

Answer: Due to the strong force of attraction of external objects like meteorites or rocks the outer surface of the moon is affected by the craters.

Explanation:

The asteroids, meteorites, comets, and other space bodies fly around the moon and when they hit the surface of the moon a crater is created as the moon has no atmosphere. Also, the size of the crater is larger than that of the size of the body. The inner surface of the moon also has a crater which is because of volcanic eruptions occurring inside the moon. The volcanic craters are the same as that of the impact so produced. The volcanic eruptions are not much frequent than the exterior objects hitting the moon so more craters are created on the outer backside of the moon.

Select the correct answer from each drop-down menu. Covering glass E with plastic wrap prevents (oxygen/ carbon dioxide) from entering the glass so Jared can test whether (Aerobic/Anaerobic) respiration occurs.

Answers

Answer:

Covering glass E with plastic wrap prevents  oxygen  from entering the glass so Jared can test whether  anaerobic  respiration occurs.

Explanation:

#plato/edmentum gang

Hope this helps!!!

Please mark brainliest.

Respiration is the process of inhaling oxygen and exhaling carbon dioxide. Covering a glass prevents the oxygen to enter and can use to test anaerobic respiration. Thus, options 1. a and 2. b are correct.

What is anaerobic respiration?

Anaerobic respiration is a process that uses electron acceptors to produce energy by breaking glucose or other sugar molecules. Unlike aerobic respiration, it lacks the use of oxygen for metabolic reactions.

This occurs in the absence of oxygen and occurs in the cytoplasm with the help of oxidizing substances like nitrate, fumarate, sulfate, etc. to produce less ATP compared to aerobic reactions of respiration.

Therefore, covering a glass prevents the entry of oxygen and can be used to observe the anaerobic respiration by some microbes.

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illustrate the cellular respiration pathway (using diagrams)​

Answers

Answer: this is your explanation

PLEASE HELP ME WITH THE FIRST QUESTION AND DONT PUT ANY LINKS!!!

Answers

Answer succession is C
Hope this helps !

is cali good for lavender plants and why ?

Answers

yeah it is because it helps it live longer then planned

Why are trees generally measured at 4 feet, six inches feet from the ground?

Answers

Answer:

Trees are generally measured at 4 feet, six inches feet from the ground because trees are generally a bit wider at the bottom where the roots begin to spread, so choosing a point at which all trees are measured is one way to keep documentation consistent. 3.

Explanation:

Answer:

Because trees are generally a bit wider at the bottom, where the roots spread

Explanation:

In another one of Mendelssohn Experiments, he crossed the off spring. Two pea plants with purple flowers (Pp) were crossed.

Answers

Answer:

There will be a dominant and recessive trait that would be formed.

Explanation:

3 purple flowers would be dominant while 1 will be recessive.

The green pigment in the chloroplast that captures the sun's energy is

Answers

Answer:

Chlorophyll............

Which sequence represents the normal blood flow in pulmonary circulation?
Show photo of pulmonary circulation

Answers

We add a whole number close with respect

PLEASE HURRY NUMBER 8

Answers

Answer:

C. a species that was unable to adapt and died out

helpp me plz it would mean alot

Answers

Answer:

Codon

Explanation:

mRNA bases are grouped into sets of three, called codons.

Which statement about the immune system is false?

Answers

Answer:

Can you please give the options because there are many questions to this?

Answer:

B. Lymph contains water and blood cells is the false statement.

Explanation:

have a nice day!

how will photosynthesis affect oxygen levels?
(also if anyone could help me with the rest of these answers, that would be great <3)

Answers

1. Photosynthesis increases oxygen levels, as oxygen is one of the remainders from photosynthesis. Remember, for photosynthesis to happen plants taken carbon dioxide and release oxygen.
2. Cellular respiration will decrease oxygen levels. For cellular respiration to occur animals take in oxygen and release carbon dioxide.
3. If there is a higher light intensity then there will be higher levels of oxygen production. Plants need energy in the form of sunlight in order to photosynthesize, and the more photosynthesis that is done the more oxygen that is produced.

The process of photosynthesis positively affects the level of oxygen in the ecosystem. This is because oxygen is the byproduct of the photosynthesis mechanism along with the main product known as Glucose.

What is Photosynthesis?

Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The complete reaction of photosynthesis si as follows:

[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]

With the help of this reaction, this is determined that if the rate of photosynthesis increases, the level of oxygen is positively affected which means it is also increasing. It is opposite to the process of cellular respiration which involves oxygen as a reactant.

Therefore, the process of photosynthesis positively affects the level of oxygen in the ecosystem.

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The process of water freezing water to thaw and break apart rock is called____.

Answers

Answer:

mechanical weathering

Explanation:

What process occurs immediately after fertilization?
A. Meiosis
B. Differentiation
C. Cell division

Answers

Answer:

C

Explanation:

Answer:

C. Cell division

Explanation:

Fertilization results in the creation of a zygote.

When a car slams on breaks, a book in the seat of the car slides forward. What terms describes why that happens?​

Answers

The book absorbs the energy

Answer: Newton's first law which states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

ill give brainly please answer asap

Answers

It’s 5cm because you convert 50mm to cm which is 5cm and 5 times 1 is 5

What are the causes of variations ? please explain thi also​

Answers

Answer:

variation can be caused by mutation and other things

Explanation:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light or cigerette smoke

➜ Following are the causes of variations:

Dual percentage: Offsprings inherit some features from mother and some from father. Hence no offspring will exactly resemble to either of the parent or each other.Mutation in gene or chromosomal pattern also causes variations.

How does the human heart interact with gravity

Answers

Answer:

Many parts of the cardiovascular system (including the heart) are influenced by gravity. On Earth, for example, the veins in our legs work against gravity to get blood back to the heart. Without gravity, however, the heart and blood vessels change – and the longer the flight, the more severe the changes.

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