How do the final images of transmission and scanning electron microscopy differ

Answers

Answer 1
Answer:

The results of transmission and scanning electron microscopy differ in a number of ways: Resolution, contrast, depth of field, image appearance.

Resolution: resolution of transmission electron microscopy (TEM) is greater than that of scanning electron microscopy (SEM). As a result, TEM can produce more detailed images of the sample.

Contrast: The way electrons interact with the sample creates contrast in TEM images. The contrast in SEM images is caused by the way electrons are scattered by the sample.

Depth of field: In TEM images, the depth of field is very shallow. This means that at any given time, only a small section of the sample is in focus. SEM photos have a significantly higher depth of field.

Image appearance: TEM images are often displayed as two-dimensional projections of the sample. SEM pictures are typically three-dimensional representations of the material.

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Answer 2
Answer:

The most important differences between a transmission electron microscope and a scanning electron microscope are: Rather than the broad static beam used in TEM, the SEM beam is focused to a fine point and scans line by line over the sample surface in a rectangular raster pattern

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What processes turn sediment into sedimentary rock?A.
melting and cooling

B.
plants or animals becoming trapped between layers of sediment

C.
compaction and cementation of sediment

D.
weathering and erosion

Answers

The processes which turn a sediment into a sedimentary rock are compaction and cementation of sediment.

Sedimentary rocks are formed by the agglomeration of sediments to form a large mass. These sediments are composed of the remains of plants and animals. As a result of this, sedimentary rocks a re useful in analyzing fossil records.

Sediments agglomerate to form sedimentary rocks under pressure via the process of compaction and cementation of sediment.

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The answer is C. Compaction and cementation of sediment, because sediment is powder, when something becomes cemented, it comes together, like cement, when you add cement to water.

How can fruits be helpful in seed dispersal

Answers

because when fruits degrade their seeds are planted

The first organisms on Earth were mostly likely ________ cells.prokaryotic
Or
eukaryotic?

Answers

Answer: Prokaryotic. Because their unicellular.

Answer:

Prokaryote

Explanation:

What is 10% of 100.00

Answers

The Answer is

10. Im good at maths

What is a medical biologist

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Answer:

Medical biology is a field of biology that has practical applications in medicine, health care and laboratory diagnostics.

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a field of biology that has practical applications in medicine, health care, and laboratory diagnostics

Based on the molecular data, which species is most closely related to humans?

Answers

Answer:

Chimpanzee

Explanation:

It is said that all the species are evolved from a common ancestor. We humans also come from this way. But we have close ancestors i.e. apes  

( Chimpanzee). It is proved by the nucleotide sequence of the DNA.

The molecular data shows the similarity between the DNA of banana and humans is 50 %, 80% similarity with dogs, and 99% with the chimpanzee.

Due to natural selection, the apes and humans are split and form 2 species. But one can say humans are great apes, due to this close similarity between the nucleotide sequences. When the nitrogenous base sequence is compared, the apes and chimpanzee shows many similarities.  

There are some differences also, the chimpanzee has 24 pairs of chromosomes, while humans have 23 pairs. There are many differences shows in both nucleotide sequences. This is because of the mutation. After these differences, the chimpanzees are closely related to humans.

Answer:

An ape species.

Explanation: