When microscopes were first used hundreds of years ago, scientists discovered that a single drop of water contains many particles that the human eye is unable to detect on its own. The microscopes used today are much more powerful and have allowed scientists to make discoveries about smaller living things, such as how germs can make people sick. Which statement best describes the use of microscopes over the last several hundred years?

Answers

Answer 1

Answer:

a

Explanation:

edge

Answer 2

When microscopes were first used hundreds of years ago, scientists discovered that a single drop of water contains many particles that the human eye is unable to detect on its own. This statement best describes the use of microscopes over the last several hundred years. Thus, option A is correct.

What are the theories related to microphones?

The statement that best describes the development of the theories that has been connected microscopic as well as macroscopic phenomena has took several hundred years for the scientists just to develop current theories, as well as they are still being revised to this same process.

Most of the scientific theories has been involving the microscopic and the macroscopic phenomenon which have been taken several years to be developed atlast however, this theories are still under revision till date. The microscopes used today are much more powerful and have allowed scientists to make discoveries about smaller living things.

Therefore, This statement best describes the use of microscopes over the last several hundred years. Thus, option A is correct.

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Related Questions

In an experiment, the independent variable is the variable that

Answers

Answer:

It is a variable that can be changed or controlled

Please help me with this question!!!!!

Answers

C) 6, because what regulates the movement of substances in and out is the cell membrane
The answer is c....so yeah

physical education have the relation with health education justify​

Answers

yes because it helps get your body right and fit and helps strengthen your muscles when you work out giving you a low percentage of getting diabetes and other unhealthy diseases
physical education helps you remain healthy and strong, which is a relation with health education

A biology student wants to conduct a study of how the amount of food affects weight gain for mice. He sets up four cages with a mouse in each cage. What are the independent variable, dependent variable, and constants? For the independent variable, what would you put in the box below for each mouse?

Answers

Answer:

dependent variable is the weight (gain) - weight depends on the food being eaten.  The dependent variable "depends" on the independent variable, hence....

independent variable is amount of food

the constant is the type of food.

Explanation:

Nucleic Acids are responsible for the storage of? ​

Answers

Nucleic acids store and transmit genetic information that you inherited from your parents.

Answer:

storage and expression of genetic information

Explanation:

Nucleic acid is an important class of macromolecules found in all cells and viruses. The functions of nucleic acids have to do with the storage and expression of genetic information.

A car increases its velocity from 7.8 m/s to 11.4 m/s with constant

acceleration. The average velocity of the car is m/s. (Round to

nearest tenth digit.)

Answers

Answer:

The Average velocity is 10m/s

Explanation:

step one:

The average velocity is equal to the summation of all velocities divided by the number of velocities

step two:

since we have two velocities in the question

v1=7.8m/s

v2=11.4m/s

step three:

average velocity is = (v1+v2)/2

Average velocity= (7.8+11.4)/2

Average velocity= 19.2/2

Average velocity= 9.6m/s

step four:

now we have to round the answer to the nearest tenth which is

10m/s

Pls help me answer this as fast as possible!!!!

Answers

Answer:

its a cell inside you can see the membrane and mitochondria which gives the hint

Can someone please help me with this question? If you can, could you explain it to me in your answer? Thanks.

Answers

Answer:

l think this is your correct answer

In the inheritance pattern incomplete dominance offspring demonstrate an intermediate form of alleles from the parents. Is it true or false science

Answers

Answer:

The correct answer is True

Explanation:

Incomplete dominance occurs when the dominant allele is not completely expressed to the total exclusion of the recessive allele hence the Phenotype/physical appearance shows an intermediate between the dominant and recessive alleles of the gene. An example of incomplete dominance is when a red flower is cross-pollinated with a white flower and a pink flower is produced as offspring (instead of a red or even white offspring).

Answer:

true trust me

Explanation:

Question 5 (1 point)
Identify the independent variable: Two plants were grown in two different brands of potting soil, they received the same amount of
sunlight and water.
a
b
The plants
The sunlight
The water
The potting soil
С
Od

Answers

The potting soil because it’s the cause

Match the elements to the type of cycle that they possess Carbon Sulfur Oxygen Nitrogen Phosphorus Sedimentary Cycle or Gaseous Cycle

Answers

Answer:

Sulfur, phosphorous.... sedimentary cycle.

Carbon, oxygen and nitrogen.... gaseous cycle

Answer:

Alvin is correct

Explanation:

plato

Which organisms transform nitrogen to a form that is useful to plants?
-bacteria
-animals
-fung
-humans

Answers

Answer:

fung

Explanation:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer:

Bacteria

Explanation: Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants. Recently fixed ammonia is then converted to biologically useful forms by specialized bacteria.

what is an environment​

Answers

Answer:

the surroundings or conditions in which a person, animal, or plant lives or operates.

Explanation:

The natural environment encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth. This environment encompasses the interaction of all living species, climate, weather and natural resources that affect human survival and economic activity.[1] The concept of the natural environment can be distinguished as components:

a) What isdefination of tissue fluid?​

Answers

Tissue fluid is a watery liquid that contains glucose, amino acids, fatty acids, salts and oxygen.

What is the importance of the main nutrients cycle?

Answers

Nutrients cycle allows the transformation of matter to different specific forms that enables the utilization of that element in different organisms.

Where is the spine ? i want the answer

Answers

Answer:

in your back

Explanation:

Answer/Explanation:

The spine is located in the person's back. It is right along the midline and is split in half when looking at the sagittal plane. Although some people have spinal issues which can cause it to be dislocated.

Hope that helps and have a great day!

Biotechnology examples

Answers

Test tube baby, Gene cloning, and Disease resistance genes

Answer:

Medical Biotechnology. Medical biotechnology involves the use of living cells to develop technologies for the improvement of human health. Agricultural Biotechnology. Nutrient Supplementation. Abiotic Stress. Strength Fibres. Biofuels. Healthcare.

Explanation:

These are types of Biotechnology

Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!!

Answers

Living your best life is honestly up to your own interpretation.

Living your best life is what YOU think is best for yourself.

Here’s what I think it means:

Living your best life means living a life where there are no boundaries and you are free to do what you want. Doing what I want in the future will make me happy. Happiness will give me my best life.

Photosynthesis is a process in plants that uses _____and produces energy and oxygen. water and soil nitrogen sun, water, and carbon dioxide sun and oxygen Oxygen, carbon dioxide, and soil

Answers

Answer:

Carbon Dioxide, Sun, Water

Explanation:

^

What type of consumer do you think this coyote is? Can you tell from the photo that the coyote is not an omnivore?

Answers

Answer:

Carnivore.

Explanation:

Based on the picture alone, the coyote is eating meat, which would make it a carnivore.

Cayote is a tertiary consumer.

The photo alone cannot tell us cayote is not an omnivore.

Tertiary consumers are organisms on the fourth trophic level of a food chain. Most tertiary consumers like the cayote are omnivores.

Omnivores feed on both plants and animals. The cayote feeds not only on other animals like ducks, squirrels, fish, grasshoppers, but also feed on young plants and berries form plants.

The photo only shows us a cayote feeding on just one source of its diet which is a smaller animal. It cannot tell us that the cayote is not an omnivore because it doesn't show us the entire food web of the cayote in its ecosystem.

In conclusion, the cayote is a tertiary consumer. You cannot tell the cayote is not an omnivore from the photo.

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a system of goverment

Answers

the three main systems of government used today are unitary systems, federal systems, and confederate systems

Answer:

3 types of systems

Explanation:

- unitary

-federal

-confederate

what type of organismms make up the base of every foodchain

Answers

Producers. If we didn’t have producers we wouldn’t have all the other layers of our food chain

where does the word atom come from​

Answers

Answer:

greek word atomos which means invisible a- means not and -tomos means cut

Explanation:

Explanation:

Greek philosophers such as Democritus and Epicurus suggested that matter is made up of tiny indivisible particles called atoms. The word atom is derived from the Greek word atomos, which means indivisible or uncut.

does water have cell organization

Answers

Answer:

Yes

Explanation:

Cells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass. Consequently, the interactions between water and the other constituents of cells are of central importance in biological chemistry.

Yes water does have cell organization

Conduct additional research on the use of triclosan and other chemical agents in antimicrobial products today. Develop an opinion on whether this process should continue, providing evidence to support your stance.

Answers

Answer:

Triclosan was popularly utilized as biocide generally in present modern items like oral, cosmetics, and dermal items this expanded utilization causes microbial resistance among intestinal, dermal, and ecological generally E.coli and Salmonella enterica.  

This microbial resistance happens because of moving out of metabolites, target modification or alteration, development of Biofilm, and bypass of metabolic blockage in the bacterial cells additionally acquires opposition against triclosan.  

This causes serious endless supply of the items and prompts utilization of these biocides and ineffective.This is expected to acquiring cross resistance or co-resistance from the antimicrobial.

how does quantitative prove their hypothesis

Answers

Explanation: if they were to make a hypothesis where they made guesses to how many people were to have something, they could use the quantitative data to prove that the amount they guessed was either wrong or right. Example: i guessed there would be five people who would get sick after contact with a mysterious object, after collecting data i figured out that our average number of people sick was 5-6, this means the hypothesis was correct.                

Which organisms obtain energy from dead or decaying matter? Check all that apply. groundhogs.
daisies
earthworms
bacteria
humans
phytoplankton​

Answers

Answer:

The correct answer is Earthworms, and Bacteria.

Hope this helps :)

Explanation:

I just took the test on edge.

Decomposers are the organisms which feeds on dead and decaying matter. Earthworm and bacteria are included under decomposers.

What are Decomposers?

Organisms that feeds on dead or decaying organisms and return organic material again to ecological cycle.

These are also called as detritivores. If decomposers gets vanished from ecology then it will result in stopped recycling of carbon and hence affect percentage of carbon dioxide in environment.

Some organisms that comes under this category are bacteria, earthworm, fungi, invertebrates, some insects etc.

Thus, the correct options are b and c.

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Can someone help me out?

Answers

Add more enzyme Add more substrate Adjust ph to an optimal level

Sample Response: When there is less rainfall, land,
which is part of the geosphere, becomes dry. When there
is not enough water, plants will not get the nutrients they
need from the soil and animals will not get enough water,
and they will die. Both plants and animals are part of the
biosphere. Less precipitation would also mean less water
in lakes and groundwater, parts of the hydrosphere, and
less evaporation. The atmosphere may also be affected
due to less water vapor.
Which ideas did you include in your answer? Check all
that apply.
Droughts can cause the geosphere to be very dry.
Droughts can affect the survival of organisms in the
biosphe.
Droughts can affect the amount of water in the
hydrosphere.
Droughts can affect the amount of water vapor in the
atmosphere.

Answers

Answer: there is no correct answer to this question i just took the test and the answer is whatever you want to answer

Explanation:

just took it on edg 2020

When there is less or no rain than expected it will lead to draughts.

Draughts:

When there is less rainfall all the parts and organisms of the earth get affected. Water is an essential component of life. Less rainfall leads to the scarcity of water on the earth.

Farmers will not get enough amount of water for farming, groundwater levels also get affected. Plant and animal life also gets affected, and this affects the survival of organisms.  Draughts can also affect the amount of water in the hydrosphere.

Food, fruits, and vegetables also get reduced because of less amount of rainfall. Therefore good rain is essential for the lives of the plants and animals. This is important for the survival and the good life of the organism.

Therefore, When there is less or no rain than expected it will lead to draughts.

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in eukaryotic cells, dna replication occurs in the

Answers

dna replication occurs inside the nucleus :)

Answer:

inside the nucleus

Explanation:

dna replication in eukaryotic cells occurs in the nucleus

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