why is water not advisable for cleaning a microscope?

Answers

Answer 1
Do not use water, alcohol or acetone as the oil is insoluble to these solvents. To remove other oily substances, i recommend using the detergent called Wisk and prepare a solution of 1 part Wisk to 100 parts water I usually use it . Hope it helps

Related Questions

only bones form fossils

true or false

quick pls !!

Answers

No ! False ! The answer is false !

Explain why men should not accuse women of not delivering male child for them​

Answers

Men should not accuse women of not delivering a male child for them​ because they are not responsible for determining the gender of the child. It all depends on the fusion of chromosomes.

How zygote is formed?

The Zygote is formed after the successful fusion of male and female gametes.

Women bear both XX chromosomes, while men bear one X and one Y chromosome. It is a biological phenomenon of fusing these sets of chromosomes and determining the gender of the child.

Therefore, it is well described above.

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Es una fuerza que altera una comunidad
biológica y, por lo general, retira organismos de ella:
A. Sucesión primaria
B. Perturbación
C. Sucesión secundaria

Answers

Answer:

the language.. please express in English

A statement in the introduction read, “All other factors remained the same between the two groups.” Make a list of factors that must remain constant in the experiment.

Answers

The factors that must remain the same in an experiment are known as control variables.

In order to conduct a proper experiment, there must be 3 kinds of variables. These are:

Dependent variableIndependent variableControl variable

A dependent variable is a variable that the experiment seeks to observe, this variable is expected to change in value throughout the experiment and depends on other variables. An independent variable is one that the researcher changes throughout the experiment in order to see what effect it will have on the dependent variable.

The variables referred to in the question are control variables. Control variables are the factors that must remain constant in an experiment. This is to ensure that when we measure a change in the dependent variable, we know to attribute it to the correct cause of the change. The presence of control variables helps to ensure a valid experiment and limits the influence of other factors on the outcome.

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farms are to hunting and gathering as

Answers

plumbing is to outhouses

What changed,if any,did you make to you initial sequence,and why?

Answers

Answer:

I need a picture or something

Explanation:

Blocking atmospheric or oceanic circulation patterns could drastically change climate.

True
False

Answers

True, hope this helps.

Fill in the blanks below with the correct word to complete the sentence.

Answers

The question isn’t complete…

write any two important of measurement​

answer fast

Answers

It’s importance in science and chemical industry


What happens during G1 phase?

Answers

Answer:

please mark me brainliest

Explanation:

G1 phase. G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. During this time, the cell grows in preparation for DNA replication, and certain intracellular components, such as the centrosomes undergo replication.

___________ neurons carry signals from sensory nerves to the Central Nervous System.

Answers

Afferent neurons.

What is it : Afferent neurons are sensory nerves
These are sensory neurons carrying nerve impulses from sensory stimuli toward the central nervous system and brain. Afferent neurons carry signals to the brain and spinal cord as sensory data.

describe the role. of the liver in regulating the concentration of glucose in the body​

Answers

Answer:

The liver stores glucose to power the cells during periods of low blood sugar. Skipping meals and poor nutrition can lower blood sugar. By storing glucose, the liver makes sure that blood glucose levels remain steady between meals and during sleep. When blood glucose falls, cells in the pancreas secrete glucagon.

Have a nice day!!

so the liver stores glucose to power the cells. This happens during periods of low blood sugar. Skipping meals and poor nutrition can lower blood sugar. By storing glucose, the liver makes sure that blood glucose levels remain steady between meals and during sleep. When blood glucose falls, cells in the pancreas secrete glucagon.

:)


¿Qué condición se requiere para que se reproduzcan los virus?

Answers

Answer:

it must enter cells of the host organism and use those cells' materials.

Explanation:

A virus must take control of the host cell's replication mechanisms. At this stage a distinction between susceptibility and permissibility of a host cell is made.

ppppppppppppllllllllllllllzzzzzzzzzzzz hurry plz

Answers

Answer:

What questions do you need help with?

What question do u need help with

A baking company wants to know if adding sugar to their bread recipe
will cause mold to form and grow on the bread faster. To find out, they add
sugar to batch A and use the original recipe for batch B. Mold formed on
batch A 9 days after baking and on batch B 12 days after baking. They
decide to NOT add sugar to the original bread recipe. What is the
dependent (responding) variable in this experiment? *

Answers

Answer:

Answer: The bread lasts longer without adding any sugar while adding sugar it gets bad and molds sooner.

Imena is teaching her younger brother how to build a fire. As the fire sparks and starts to burn the kindling and wood in the fireplace, her
brother asks if the fire is alive because it is moving and growing. Imena tells her brother that the fire is not a living thing, and her brother asks
what makes something alive. What response does Imena give her brother?
250 words remaining

Answers

For something to be alive, it has to have essential characteristics. Some non-living elements share some of these characteristics with living things, but not all of them. That is what distinguishes one from the other.

The characteristics that all living things have are:

organization; sensitivity; growth; reproduction; homeostasis; and metabolism.

As regards organization, the minimum unit of life is the cell. For something to be a living thing, it has to be a cell or have multiple cells. They have organelles and organize to perform different actions.

The following characteristic is sensitivity, which means that the thing has to react to a stimulus by giving a response.

Living things grow. In other words, they increase in size thanks to the elements that they take from the exterior and process them taking what they need to grow. To do so, they use metabolism.

Metabolism is the combination of catabolism( the elements that the organism destroys) and anabolism( the elements that the organism builds). Metabolism is also essential for homeostasis. These are the different reactions that an organism has to have a balance.

The last essential characteristic is reproduction. Living things have to reproduce themselves, there are different methods, and they depend on the type of living thing that they are.

In conclusion, fire is not a living thing because it does not have cells that can have metabolism, sensitivity, homeostasis, and it can not reproduce itself.

A living thing has six main characteristics:

organization sensitivitygrowthreproduction homeostasis metabolism

Even though the fire seems like a living thing because it is consuming wood, making noises, and moving, as many living things do, it is not alive because it does not have cells. As it does not have cells, it can not have homeostasis, react to stimuli, or grow as cells do. It might look like a living thing, but it is not since it does not have the six characteristics that every living thing has.

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Drug-resistant tuberculosis is a major health issue in many countries. Treatment for these resistant forms of bacteria is longer and requires more expensive antibiotics. Scientists attribute this to natural selection. Under these circumstances, what does natural selection mean?
A. The tuberculosis genes mutated to avoid being killed by the antiblotic
B. Tuberculosis bacteria discovered a way to avoid these particular antibilotics.
C. An environment was created in which the tuberculosis bacterium carrying the antibiotic-resistant genes could reproduce.
D. The antibiotic changed the DNA of the tuberculosis bacterium.

Answers

C one because it makes the most sense

BRANLIEST!!!!!!!!!
Define isomers in a short paragraph or couple of sentences

Answers

CHEMISTRY
each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties.
2.
PHYSICS
each of two or more atomic nuclei that have the same atomic number and the same mass number but different energy states.

The enzyme changes the substrate to create a _______.

Answers

Answer: an enzyme products complex.

Explanation:

To catalyze a reaction, an enzyme will grab on (bind) to one or more reactant molecules. These molecules are the enzyme's substrates. This forms the enzyme-substrate complex. The reaction then occurs, converting the substrate into products and forming an enzyme products complex.

yaar answer da do plzz​

Answers

Answer:

U know I need time to make it for changing my is a sentence of measurement? I jump on it. uses of measurement? I jump on it. uses of measurement? I jump on it. uses of

Which of the following gases supports combustion? A.Carbon dioxide B. Carbon
monoxide C. Hydrogen D.Oxygen​

Answers

the answer is D, Oxygen
Oxygen supports combustion

describe the chemical test for glucose and maltose?​

Answers

the test is called Benedict’s Reagent

it’s used to test for the presence of all monosaccharides, and generally also reducing sugars

The compound Iron (II) sulphate consists of A.Iron and sulphur B. Iron and
silicon C. Iron and silver D. Iron and tin​

Answers

Answer:

A. Iron and sulphur

Explanation:

It also contains oxygen

[tex]{ \bf{formula}} : { \sf{FeSO_{4}}}[/tex]

Behind your house, there's a gorgeous pond filled with frogs. You notice that the frogs behind Mr. Archer's house often have three legs. You start wondering if the fertilizer that Mr. Archer uses for his lawn is causing the deformities in the frogs. You collect 10 frogs and put the special fertilizer in their container (Group A). You put another 10 frogs and place them in a different container with just water (Group B). A week later, 7 out of 10 of the frogs in group A grew only three legs. The frogs in group B grew four legs.



What was the dependent variable?

Answers

The fertilizer would be the dependent variable

can someone explain how to do this i'm confused.

Answers

It is paper and a table


Hello!
Im beginning year 11 this year and I recently did really bad in my Mocks! I really need some help and advice for all of my subjects because I truly dont know how to revise effectively and because I keep Procrastinating!
Any advice would be appreciated or if u have links to videos and helpful websites I would appreciate it
Here are my results :
Maths : 4
Eng Language : 4
Eng Lit : 4
Chemistry : 4
Physics : 3
Biology : 3
RE: 4
Health and Social care : Level 2 Pass
History : 4
Food Tech : 4
Spanish : 4
Thank u!

Answers

Answer:

I would prefer you to make a schedule in a day whenever you have time like if you're studying 5 hours a day then do maths for two hours and after that you have three hours left then take one hour for each subject like 1hr for Chemistry , 1hr for History and 1hr for Spanish so that you can study atleast 4 subjects each day. But remember that everyday you have to do maths for 2hrs and after that you can randomly change the subjects like if you have completed 1 chapter from history then you can study physics. I didn't sent you a link or website but it's just a simple advice from me for being a topper. So I hope it will help you

Organize your self like really.
try to do your homework while you’re in class so when your classes for the day are over you have plenty of free time to study or do whatever you want. That’s what helps me in school

Contrast the movement of particles in a
solid, a liquid, and a gas.

Answers

Answer:

The particles in a solid are tightly packed and locked in place. ... The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other. The particles in a gas are fast moving and are able to spread apart from each other.

Explanation:

Our solar system is just a small part of the Milky Way galaxy, which is just a tiny part of the universe.

true or false

why?​

Answers

Answer:

True

Explanation:

Our solar system is just a small part of the milky way galaxy. Our galaxy is a huge collection of gas, dust, and billions of stars and their solar systems and there are many galaxies in the universe. This is because of the big bang.

When it happened, many galaxies were formed and then in these galaxies many solar systems developed.

Hope this helps.

can anyone help me fill in the blank lol ?​

Answers

Answer:

I can't really see it.

Explanation:

Which of the statements below correctly compares features of plant and animal cells?

Plant cells have a cell membrane, while animal cells have both a cell wall and a cell membrane.
Plant cells have ribosomes only on the rough ER, while animal cells have ribosomes in the cytoplasm.
Plant cells have a large central vacuole, while animal cells have many smaller vacuoles.
Plant cells have chloroplasts but no mitochondria, while animal cells have mitochondria.

Answers

Plants cells have a large central vacuole, while animals cells have many smaller vacuoles

Plant cells have a large central vacuole, while animal cells have many smaller vacuoles. Hence option c is correct.

What are vacuole?

Vacuole is defined as a region of cytoplasm-free, membrane-lined, and liquid-filled space inside a cell. A membrane-bound cell organelle known as a vacuole.  The plant cell's equilibrium depends heavily on the vacuole. It participates in the regulation of cytoplasmic ions, pH, and the control of cell volume and turgor.

Animal cells lack a cell wall, whereas plant cells do. Animal cells lack chloroplasts while those of plants do. Animal cells have many little vacuoles, but plant cells only have one giant vacuole. Animal cells only have a cell membrane, but plant cells have both a cell wall and a cell membrane. Cell walls are used by plants to give the plant structure. Animal cells lack the organelles known as chloroplasts that are present in plant cells.

Thus, plant cells have a large central vacuole, while animal cells have many smaller vacuoles. Hence option c is correct.

To learn more about vacuole, refer to the link below:

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