what is the difference between light microscopes and electron microscopes ?​

Answers

Answer 1
Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light and this allows electron microscopes to produce higher-resolution images than standard light microscopes.

Related Questions

Name the various cells through which water moves upward to reach the leaves.
it's a middle school level question, so ans like that.​

Answers

Answer:

Xylem cells are responsible for the movement of water from the roots to the leaves.

Explanation:

I looked it up

➜ Water absorbed by root hairs moves through epidermis.

Root cortex.

Endodermis.

Root xylem (i.e, tracheids & vessels).

Stem xylem.

Xylem in the leaf.

The red shift of light from most galaxies is evidence that

Answers

Astronomers have discovered that, in general, the further away a galaxy is, the more red-shifted its light is. This means that the further away the galaxies are, the faster they are moving. ... Red-shift data provides evidence that the Universe, including space itself, is expanding.

Your Welcome :)

Answer: This means that the further away the galaxies are, the faster they are moving. ... Red-shift data provides evidence that the Universe, including space itself, is expanding. Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. ... When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.

Explanation: Mark me as brainliest please please please!!!

Question 20
A material is biodegradable if
A
it is made of synthetic material.
B
it is made from petroleum or natural gas.
it can be broken down by biological processes.
D
if can be disposed of in a landfill.

Answers

C) it can be broken down by biological processes

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Answers

The answer is c bc the deeper the layers or geographic properties are which is dirt or soil land rocks or other properties are due to overtime probably thousands or millions of years of eroding or other phenomenons

Answer:

h

Explanation:

Is this a male or female?

Answers

Answer:

female

Explanation:

I think xx is for female and xy is for Male

Answer:

Female I think

Explanation:

Plant cells have
It is used for photosynthesis.
es
A.chloroplast
B.nucleus
C.Cytoplasm
D.cell membrane

Answers

Answer: A is for sure the answer

Explanation:

The number of males and females of each age in a population is described as the
O carrying capacity
O age structure
O demography

Answers

Answer: age structure

Explanation:

PLEAS HELP!!!!!
Fresh water is water that does not contain any:

salt

dirt

chemicals

sediments

Answers

Answer:

salt

Explanation:

if water has salt it is no longer considered fresh, rather it is salt water

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How does DNA change from generation to generation in asexual organisms?

1. Cloning
2.Mutation
3.Variation
4. Gene pairing

Answers

Mutation- asexual means only one parent so it would be a clone but when mutated it changes

If you don’t have edmentum don’t answer this you won’t understand.!*science*GIVING 50 POINTS TO WHOEVER GETS IT RIGHT.!



One of the concerns about rising CO2 levels ocean water is the negative effect on certain types of marine life, such as oysters and clams. Does your experiment show a negative effect? Explain your answer.

Answers

Answer:

see below :)

Explanation:

For many years sea life such as oysters and clams have been acostumed to the temperature of the water. Rising levels of CO2 will cause more heat in water temperatures. This would make the shells of the oysters and clams 'wear away'.

Answer:

yeah the person under me is right

Explanation:

Ocean acidification is a consequence of the excess carbon dioxide in the atmosphere from fossil fuels. When the ocean absorbs the CO2, the water becomes more acidic. Shelled animals like zooplankton, corals, clams, mussels and oysters cannot grow their shells in the acidic water.

BTW I HAVE edmentum I DO ONLINE SCHOOL ON IT

Which option would be a good course of action in the followingscenario?
An agronomist discovers that the plants in a field are all infected with a fungus.
A. immediately apply a fungicide
B. do nothing
C. test the fungus to determine if it is beneficial to the plants
D. burn the crop before the infection spreads to other fields

Answers

Answer:

C. test the fungus to determine if it is beneficial to the plants

Explanation:

Some fungi are  good so it's good to check and see what effect it has on the plants.

Answer: test the fungus

Explanation:

just did it edge 2021

If an air mass is sinking, it must be
A. cold and less dense
B. warm and more dense
C. cold and more dense
D. warm and less dense

Answers

Answer:

The awnser to your question is C.

Explanation:

The colder matter is the atoms get closer therefore making the matter more dense. A. is half correct but if the matter is cold it wouldn't be more dense because when something is less dense it goes above whatever is around it. Take for example water and oil. They seperate into different layers due to density.     Hope this helps. :)

The airmass is a large homogenous mass of air over a region that could be for many days.

The volume of air is defined by the temperature and water vapor content. Airmass may spread from hundreds to miles and are classified according to latitude and altitude. There are 4 types of air mass artic, tropical equatorial, and polar. The airmass that is light is warm and has a low pressure always lifts upwards. The cold and cool airmass always settles as it's dense and heavy. Hence the option C is correct.

Learn more about the air mass is sinking, it must be.

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Why is sunlight necessary for photosynthesis?

Answers

Answer:

Sunlight provides the energy needed for photosynthesis to take place. In this process carbon dioxide and water are converted into oxygen (a waste product that is released back into the air) and glucose (the source of energy for the plant).


Why could tropical rain forests be called the "medicine chest of the Earth?

Answers

Because it gives food for LOTS of living organisms
It gives lots of food

The interaction between the cryosphere and hydrosphere can have an impact on Earth’s oceans. Which of the following is an example of an interaction between the cryosphere and hydrosphere?

E. evaporation of water from oceans at the equator
F. release of fresh water into ocean water as icebergs melt
G. decomposition of organic matter at the bottom of oceans
H. release of large amounts of salt from icebergs into the ocean

Answers

Answer:

f

Explanation:

Evaporation of water from oceans at the equator is an example of an interaction between the cryosphere and hydrosphere. So, the correct option is (E).

What are Hydrosphere and Cryosphere?

The cryosphere is define as the part of Earth's climate system which includes solid precipitation, snow, sea ice, lake and river ice, icebergs, glaciers and ice caps, ice sheets, ice shelves, and seasonally frozen ground. The word is derived from the Greek word 'kryos' which means frost or icy cold.

The hydrosphere is defined as the sum of the Earth's water such as seas, land, surface, and air. About 71 percent of the Earth's surface is covered by water where only three percent is fresh water. Even less can be used as drinking water. They both interact at equator in the form of Evaporation.

Thus, Evaporation of water from oceans at the equator is an example of an interaction between the cryosphere and hydrosphere. So, the correct option is (E).

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The total wind power capacity in the united states in 2000 was about 2540MW. By 2015, the total wind power capacity in the United States was about 72,500MW Calculate percent change in the total wind power capacity in the United States from 2000 to 2015. Show the work

Answers

Answer:

2754.33% increase

Explanation:

The total wind power capacity in the united states increased between 2000 and 2015. The percent change in the total wind power capacity in the United States from 2000 to 2015 is given by the formula:

Percent change = [(total wind power capacity in 2015 - total wind power capacity in 2000) / total wind power capacity in 2000] * 100%

Percent change = [(72500 MW - 2540 MW) / 2540 MW] * 100%

Percent change = 2754.33% increase

Power is the amount of energy transferred or converted per unit of time. In the International System of Units, the unit of power is the watt, equal to one joule per second.

The total increase is 2754.33% increase

The total wind power capacity in the united states increased between 2000 and 2015. The percent change in the total wind power capacity in the United States from 2000 to 2015 is given by the formula:

Percent change = [(total wind power capacity in 2015 - total wind power capacity in 2000) / total wind power capacity in 2000] * 100%

Percent change = [tex]\frac{[(72500 MW - 2540 MW)}{ 2540 MW }* 100%[/tex]

After solving the equation the percent change = 2754.33% increase.

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A species of bird ate many types of seeds, each type coming from a different species
of tree. The birds' beaks varied in size, with some individuals having slightly smaller
beaks and others having slightly larger beaks.
slightly smaller beak
slightly larger beak
A few years went by without much rain, and the only species of tree that survived had
large seeds. Many generations later, almost all the birds had the slightly larger beaks.
How is this best explained?

Answers

Answer:

I took this in middle school option 3

Explanation:

Answer:

The bird most likely had to adapt so they had to eat whatever they could. Doing so made their beaks larger, the muscle under neath probably started to grow from all the movement trying to eat the large seeds. LOL i really dont know but it seem reasonable i guess.

Explanation:

1 What are four of the qualities required for a healthy relationship ​

Answers

Answer:

Truthfulness. Both of you are honest with each other, not just because you have to, but because you enjoy sharing the truth together.

Kindness. You help each other without expecting in return. ...

Compassion. You feel each other’s joy and pain. ...

Respect. ...

Explanation:

What do you think would be a good reason to build an artificial island?

Answers

Answer:

business as source of income

Explanation:

lots of people really like exploring in amazing places so island can be one of the most beautiful and wonderful place to explore at

A “year” on Earth is 365.26 days long. A “year” on Saturn lasts over 29 times longer than Earth. Which of the following best explains this difference between the two planets?

Saturn is farther from the Sun than Earth.

Saturn rotates on its axis faster than Earth.

Saturn has greater gravitational force than Earth.

Saturn revolves around the Sun faster than Earth.

Answers

Answer: Saturn is farther from the Sun than Earth.

Explanation:

How are green algae related to land plants? (Select all that apply.)
both have chloroplasts
both lack a cell wall
both have a cell nucleus
both lack a cell nucleus
both have a cell wall

Answers

Answer:

bro whats the real answer i got a 70 percent bc the person who answered and the owner of this question said thank you i thought it was legit dang

Explanation:

The green algae relate to land plants in the following ways:

They both have chloroplasts.Both have a cell nucleus.Both have a cell wall.

Thus, the correct options are A, B, and E.

What are Green algae?

Green algae may be defined as a type of eukaryotic organism that has photosynthetic pigments a and b. Such a type of algae also stores carbohydrates as starch.

Green algae mostly live in freshwater environments, ranging from unicellular flagellates to more complex multicellular forms.

Both land plants and green algae have a photosynthetic organelle known as chloroplast. The cell wall of land plants as well as green algae are made up of cellulose, hemicellulose, and pectins.

Both eukaryotic classifications possess a well-defined cell nucleus, nuclear membrane, and other membrane-bound cell organelles.

Therefore, the correct options for this question are A, B, and E.

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Please help with d and explain

Answers

The answer would be AB+40.

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How does your model show what happened to the circled rock material as a result of plate motion?

Answers

Answer:

Once exposed, they are weathered, both physically (by mechanical breaking of the rock) and chemically (by weathering of the minerals), and the weathering products — mostly small rock and mineral fragments — are eroded, transported, and then deposited as sediments. Therefore, the model should show signs of deterioration and subduction.

Explanation:

I'm not sure if this is on a quiz or test, but this is what I would put down. No need to mark me brainliest, thanks anyway! :)

What are some freshwater systems and what do they all share in common?

Answers

Answer:

There are three main types of freshwater biomes: ponds and lakes, streams and rivers, and wetlands. We'll go into the details of each below. Ponds and lakes are often called lentic ecosystems. This means that they have still or standing waters, not moving like rivers or streams.

Explanation:

Water is broadly classified as fresh and salt water. Examples of fresh water systems I know are;

Ponds, rivers, lakes, and reservoirs.

Similarities among all these sources of water are the fact that;

They are all small bodies and have a low amount of salt. They are also shallow and not dense.

Fresh water makes up about 1 percent of the world's surface area whereas salt water which is found in large bodies of water takes more than 95% of the earth's surface area.

Smaller bodies of water are mainly freshwater. These are shallow, have low salt content, and are not quite dense. Large bodies like oceans and seas are known to have high salt content.

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What does selectively-permeable mean?
Nothing gets through
The cell lets only large substances through
The cell controls what passes in and out of the cell

Answers

The cell controls what passes in and out of the cell

Answer:

The cell controls what passes in and out of the cell.

Explanation:

Identify the phenotype of the offspring represented by the question mark in Figure 11-4:

Answers

Answer:

The guinea pig's phenotype (physical appearance) will be rough white hair

Label the following statements as characteristics of the central or peripheral nervous systems:

A bee stings your finger, and the sensory receptors in the ___ produce a pain signal.

The message of this pain travels up your arm. The ___ is predominantly at work.

Your brain receives and interprets the pain message. The ___ is predominantly at work.

You think about pulling the bee stinger out of your finger. The ___ is predominantly at work.

You move your other hand, lifting it to your finger to pull the stinger out. The ___ system is predominantly at work.

Answers

Explanation:

peripheral, peripheral nervous system, central nervous system, central nervous system, peripheral

Which of the following provides the energy needed for photosynthesis?

Water

Sunlight

Plants

Atoms

Answers

Answer:

Explanation:

sunlight

Answer:

Sunlight

Explanation:

Sunlight is light energy that is used for photosynthesis.

explain how the population of octopuses and seaweed in this ecosystem might be affected if a disease reduced the crab population​

Answers

Answer:

Seaweed might start to grow out of control withough crabs eating it, octopuses on the other hand would struggle to find food and start to die off because they relie on crabs to be their food source.

Without crabs to consume it, seaweed would start to grow out of control; octopuses, on the other hand, might struggle to find food and begin to disappear because they depend on crabs as a food supply.

What is the role of seaweed and octopus in ecosystem?

Seaweeds are important components of marine ecosystems. They serve as the primary source of nutrients and energy for marine organisms.

Either directly when fronds are consumed or indirectly when decomposing sections break down into small particles that are ingested by filter-feeding species.

No other creature has a predatory function as significant as that played by octopuses in forming communities.

Therefore, the population of octopuses and seaweed in this ecosystem might be affected if a disease reduced the crab population​.

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Question 1 After evaluating your MyPlate recommendations, make a prediction. Do you think your diet will meet these daily recommendations? Are there any recommendations you don't think your diet will meet?

Answers

Answer and Explanation:

I don't think MyPlate's recommendations will meet my daily recommendations because those recommendations are focusing too much on the amount of carbohydrates and are not meeting the need for other types of elements, such as healthy fats, for example. In that case, an extremely high carbohydrate diet will get me into trouble and make my body need it. Ideally, I should look for recommendations from a nutritionist who can, in fact, help me establish a healthy and complete diet.

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