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Butoxors [25]
3 years ago
14

What determines retention factor (Rf) ?

Biology
1 answer:
riadik2000 [5.3K]3 years ago
5 0

Answer:

Rf valuues and reprroooducibility can be affected by a number of different factors such as layer thickness, moisture on the TLC plate, vessel saturation, temmperature depth of mobile phase, nature of the TLC plate sample size, and solvent parameters. These effects normally cause an increase in Rf values

Explanation:

also sorry for bad typing

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Integrated Science
weeeeeb [17]
C) carbon dioxide and water is the answer
6 0
3 years ago
How can you distinguish a clastic rock from that of a bioclastic rock
IRISSAK [1]

<u>Bioclastic</u> rocks are actually sub-parts of <u>clastic</u> rocks, not a completely different thing altogether.

<u>Clastic</u> rocks are made up of loosened bits of pre-existing rocks. These rocks are formed from weathering, breaking those larger rocks down into little particles (for example, a grain of sand) due to external weather factors such as wind or rain. Some examples of these rocks would be sandstone, conglomerate, and silistone. They are classified by the size and shape of the fragments they are made up of.

<u>Bioclastic</u> rocks are also made up of loosened bits, however, they are not made of rock. They are made of fossils and biogenic (made by living organisms) particles (for example, pieces of shells and coral). These rocks are formed from small parts of pre-existing organisms compacting together to form a rock. Examples of this type of rock would be coquina and limestone, or more specifically, bioclastic limestone. Bioclastic rocks have a very crystalline texture and it is highly likely that you will see a shell in this rock type.

 

5 0
3 years ago
a race car driver drives one lap around a track that is 500 meters in length. what is the drivers displacement at the end of the
sleet_krkn [62]

Answer:

0 meters

Explanation:

When we talk about displacement, think that the think of it as the measure of the distance between the starting point of the object, from its end point.

Since we are talking about a lap around a track, it would mean that the starting point is also the end point. So if you started and end at the same point, the distance between it would be 0.

5 0
3 years ago
Occasionally earthquakes occur as a result of collisions along oceanic-continental convergent boundaries. Where do these earthqu
kirza4 [7]

On land but close to oceans. Thus, option "A" is correct.

<h3>What is an earthquake?</h3>

Earthquakes occur as a result of collisions along oceanic-continental convergent boundaries.

The majority of the earthquakes occur alongside the Ring of Fire of the Pacific Ocean. The Ring of Fire is found in the basin which is a land area found close to the coastlines of the ocean. This validates its occurrence on land but close to the oceans.

Thus, option "A" is correct.

To learn more about Earthquakes click here:

brainly.com/question/1296104

#SPJ1

8 0
2 years ago
During an infection with listeria, an intracellular bacterium, antigen presenting cells will present antigen on mhc class ______
Marat540 [252]

During infection with Listeria, an intracellular bacterium, APCs will present antigen on MHC II molecules and triggers a phagocytic property by stimulating the release of macrophages.

What is the role of macrophages in Phagosomes?

Phagosome maturation was formerly regarded to be a very simple notion that described how much phagosomes had united with lysosomes.

  • Unfortunately, this assumption is no longer valid because phagosomes are now known to interact with a variety of intracellular organelles during their maturation process.
  • Proteins, such as the NADPH oxidase complex that creates the superoxide burst, may be seen being assembled on the phagocytic cup even before they are fully formed.
  • When the phagosome closes and the maturation process begins, it becomes increasingly acidic and hydrolytically active, and it transiently fuses with the recycling endosomal system, the secretory system, including secretory lysosomes, multi-vesicular bodies such as the MHC class II (MIIC) compartment, and even the endoplasmic reticulum.

Learn more about phagosome here, brainly.com/question/15607257

# SPJ4

3 0
1 year ago
Read 2 more answers
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