Students in Mr. Painter's science class studied samples of pond water using a microscope. To prepare for the experiment, the students placed a drop of pond water on each microscope slide, and then covered the drop with a cover slip that was marked with a 1 mm grid. Using the microscope to view the slides, students counted how many of each type of organism they found in each 1 mm square. Finally, each student calculated the total number of each type of organisms. Their data is shown below. Which organism is the least plentiful in the pond water studied? A. amoeba B. volvox C. euglena D. paramecium

Answers

Answer 1

Answer:

Euglena

Explanation:
the least plentiful organism in the pond water studied. Each student found fewer euglena than any other organism.


Related Questions

ILL GIVE BRAINLIEST AND EXTRA POINTS- Who FIRST recognized the cell as the universal unit of life? HINT ITS NOT HOOKE I GOT IT WRONG
1. Virchow

2. Van Leeuwenhoek

3. Schleiden and Schwann

ASAP PLEASEEEEE

Answers

Answer:

2. Van Leeuwenhoek

Explanation:

Hooke did discover it, but the cells were dead already. So it's Van Leeuwenhoek.

Which forms of energy are used when air is warming in the sunlight? Select all that apply.
Select one or more:
a. Light
O b. Electrical
c. Thermal
O d. Mechanical

Answers

Answer:

A and C

Explanation:

The sun itself is light energy and the heat that you feel from the sun is thermal energy.

Light and Thermal energy is used when air is warming in the sunlight.

Energy is emitted by the sun some of which is radiated back and some enter the earth.Solar energy is created by nuclear fusion that takes place in the sun.

What is energy?The capacity or power to do work, such as the capacity to move an object of a given mass by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. Energy is a conserved quantity.The law of conservation of energy states that energy can neither be created nor destroyed only converted from one form of energy to another.

Hence, A and C option are correct.

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The components of blood can be separated by spinning them at high speed.
Figure I shows a tube of blood that has been separated in this way.
Figure 1
substance X
white blood cells and platelets
red blood cells
- Identify the substance labelled X.

Answers

Answer:

Plasma

Explanation:

We don't have the figure, but I think the answer is probably plasma.

Blood plasma is the fluid that blood cells are suspended in. When blood is spun at high speed, the cells separate away from the plasma into different layers because of their different weights and shapes.

Plasma is liquid portion of blood. It transports nutrients and wastes and maintains  homeostasis.

How energy from the sun is absorbed in earths atmosphere

Answers

Answer:

Explanation:

About 23 percent of incoming solar energy is absorbed in the atmosphere by water vapor, dust, and ozone, and 48 percent passes through the atmosphere and is absorbed by the surface. Thus, about 71 percent of the total incoming solar energy is absorbed by the Earth system

Answer:

The earth-atmosphere energy balance is the balance between incoming energy from the Sun and outgoing energy from the Earth. Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some is absorbed by the atmosphere, and some is absorbed at the Earth's surface.

Question 10 of 10 Which molecule is used up in photosynthesis?
A. Carbon dioxide
B. Sugar
C. Oxygen
D. Nitrogen​

Answers

Answer:

A Carbon Dioxide ( CO2)

Explanation:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. ... Then, via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product.

Which structure in plants produces a substance that protects the extending roots from developing friction?

Answers

Answer:

root cap

Explanation:

(Physical science! Help!)

Answers

Answer:

b

Explanation:

The answer would be B!

Jill is preparing to cook a family dinner, and she begins by gathering ingredients for the
main course and dessert. She realizes that most ingredients go through both physical
and chemical changes as they cook.
One of the ingredients for her main course undergoes physical changes. Which of the
following is a physical change?
boiling water
cooking eggs
O grilling hamburgers
O baking bread

Answers

Answer:

Boiling water

Explanation:

Boiling water is an example of physical change as it does not cause any change in the chemical composition of water.

What are physical changes?

Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.

Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.

They involve only rearrangement of atoms and are often characterized to be changes which are reversible.

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Helpppppp meee! Pleaseee

Answers

Answer:

i'm pretty sure its false

Answer:

false

Explanation:

ILL GIVE BRAINLIEST AND EXTRA POINTS- Who FIRST recognized the cell as the universal unit of life? HINT ITS NOT HOOKE I GOT IT WRONG

1. Virchow

2. Van Leeuwenhoek

3. Schleiden and Schwann

ASAP PLEASEEEEE

Answers

Answer:

2. Van Leeuwenhoek

Explanation:

Hooke did discover it but the cells were dead!

Describe four factors that influence a population growth rate?

Answers

Answer:

predators, the space which they live in, the amount of food, and diseases

hope that helps

Explanation:

DID YOU KNOW Bananas are curved because they grow towards the sun ☀️

Answers

Answer:

Wow! really? I have heard of it but I never believed it. After you wrote this, I searched it up and it's true

thanks for the fun tidbit! :)

Explanation:

Answer:

No, but now I do, a very interesting fact!

What are the pieces of evidence that the author uses to support his main ideas?
Should we as a country celebrate the Fourth of July in the United States, or is it, as Frederick Douglass claimed, a "sham" to black people in the United States? Discuss your opinion and explain, using personal examples

Answers

Answer:

Jul 3, 2019, The History of Frederick Douglass' Searing Independence Day Oration. So while the U.S. tends to go all out celebrating freedom on the Fourth of July, independence on July 4 are a reminder of the country's hypocrisy on the matter and bloody than are the people of the United States, at this very hour.

Explanation:

What is the end result of mitosis.
O:one cell with two identical copies of DNA
O: two cells with different copies of DNA
O: One cell with two different copies of DNA




Answers

Answer:

A

Explanation:

The answer is A i got it right.

Answer:

A

Explanation:

A _____ is a substance that speeds up a chemical reaction without being used up in the reaction

Answers

Answer:

An enzyme is a substance that speeds up a chemical reaction without being used up in the reaction.

Answer:

Catalyst

Explanation:

One example of a catalyst is yeast, it helps speed up the process of bread becoming fluffy, for example

How do you determine the amount of electrons and protons?

Answers

Answer:

The number of protons in the nucleus of an atom is equal to the atomic number

the number of electrons in a neutral atom is equal to the number of protons

Explanation:

Answer:

For both protons and electrons, you need to use the atomic number.

Which macromolecules store the most energy?
A: proteins
B: carbohydrates
C: nucleic acids
D: lipids

Answers

Answer: Carbohydrates store the most energy.

Explanation:

Answer:

D. Lipids

Explanation:

Lipids store the most chemical potential energy. Carbohydrates are more readily available though so the body use carbs when it can before accessing lipid storages.

8.33 pts
Question 2
You are at the zoo and watching a lion chew on some meat. You begin to taunt the lion since he is behind the glass and cannot get to you. He
charges the glass and breaks through. Your adrenaline kicks in and you take off running. What system is repressed during your escape?

Answers

Answer:

The parasympathetic nervous system is repressed during your escape.

Explanation:        

In the exposed example, during your escape from the lion, the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) system are responsible for your body response. They send signals and release adrenaline and noradrenaline to increase your heart biting frequency, and blood pressure, stimulating your respiration and dilating your respiratory tracts.

Once you manage to escape from the lion, and the threat factor is over, the body gets back to normality. At this point, the parasympathetic nervous system is activated. Your body activities become normal again. Your arterial pressure, respiratory frequency,  and cardiac frequency get reduced to their normal conditions. You are relaxed and at rest.

When the parasympathetic system is activated, the sympathetic nervous system is not, as they perform in opposite ways.

i need the awnsers asap!! please and thanks

Answers

Answer:

C

Explanation:

Match the type of volcano formed to the type magma that most likely formed it.

Answers

Answer:

Andesitic and Composite sheild rhyolliticcinder cone basaltic

Explanation:

What is resolving power? Why is it important in biology?

Answers

Answer:

it is the measure of the clarity of the image.the minimum distance between two points can be  separated and still be distinguished as two points is resolving power.it is important because it helps to see small molecules that can't be seen with naked eye  

Explanation:

How are the health impacts of surface mining different from those of underground mining?

1. higher risk of mine collapse in surface mining

2. higher risk of lung disease in surface mining

3. Lower risk of hearing loss and surface my mining

4. Lower risk of minor injuries and service my mining

Answers

Answer:

4. Lower risk of minor injuries and service my mining

Explanation:

There is lower risk of minor injuries in surface mining because in surface mining the mine workers work in the open air as compared to underground mining. In underground mining there is a high risk of mine collapse which results in the death of the mine workers. There is risk of injuries in surface mining such as hearing loss because of high noise of the mining machines.

The impact on health of surface should be option  4. Lower risk of minor injuries and service my mining

Impact on health:

There should be less risk of minor injuries in surface mining since in the case of surface mining the mineworkers work in the open air than underground mining. Since in underground mining there is a high risk of a mine collapse that leads in the death of the mineworkers.

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Which answer best describes the evergreens and herbs of the Chaparral biome?
A)
They are rich in oil which promotes fire movement through the biome.
B)
They are rich in food sources for large birds of prey.
C)
The large deciduous trees provide habitat for birds of prey.
D)
They are usually poisenous to humans.
E)
They can not adapt during drought conditions.

Answers

Answer:

A) They are rich in oil which promotes fire movement through the biome.

Explanation:

this should be the answer

Answer:

A) They are rich in oil which promotes fire movement through the biome.

Explanation:

what is an example of a catalyst?

Answers

Answer potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas.

Explanation:

Answer:

They include elemental metals and other inorganic substances. ... Examples of inorganic catalysts in chemical reactions include: potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas. Two molecules of hydrogen peroxide will produce two molecules of water and one molecule of oxygen.

Explanation:

Hope It helps u

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Cells reproduce by splitting in half, a process called cell division. What do cells need to do between divisions to make sure that they don’t just get smaller and smaller?

Answers

Answer:

Grow

Explanation:

Before every cell division, cells replicate their DNA to pass on to the daughter cells. They also grow in size and replicate their organelles to ensure that each daughter cell has sufficient resources to carry out all the activities necessary for its function. They also ensure there are sufficient nutrients to perform their tasts.

Cells only need to grow in size and contents before each cell division so as to avoid getting smaller in size with successive divisions.

Each of the daughter cells produced during mitotic cell division goes through an interphase period. The interphase period is divided into 3:

G1 phase: a period characterized by cell growth. An increase in size and volume of content is achieved in this stage.S phase: a period characterized by the synthesis of DNA. The amount of genetic materials (DNA) doubles up in this stage, whereas, the chromosome number remains constant.G2 phase: a phase in which protein is synthesized. After this stage, the cell is ready to pass through a period of division.

Without going through the stages above, a cell will simply go into a dormant phase which is essentially a resting phase.

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Multicellular plants and animals have organs to perform specific functions.


What do eukaryotic cells have to perform specific functions?



A. vacuole



B. organelles



C. cytoplasm



D. ribosomes

Answers

Answer:

organelles

Explanation:

each of the organelles like mitochondria, endoplasmic reticulum, lysosomes, golgi apparatus etc performs a specific function critical to the cell's survival.

give scientific reason:-
space debris is a major problem

Answers

Answer:

yes

Explanation:

because it would make a space as a dirty

Hellllllllllppppp pleasse!!!!!!!

Answers

Answer:

Im not sure but I think its a

Explanation:

I learned it in class

Answer: B

As stating the liquid properties of matter, a liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a constant volume independent of pressure. It is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape.

I would be happy to help with any other questions you may have in the future and will do my best to provide helpful answers! :D

In which situation would osmosis most likely occur

Answers

Osmosis is the net movement of water across a selectively permeable membrane driven by a difference in solute concentrations on the two sides of the membrane. A selectively permiable membrane is one that allows unrestricted passage of water, but not solute molecules or ions.

The case in which osmosis occurs is that when there is a selective permeable membrane is present and it allows only selective substances to pass through the channel.

What is osmosis?

Osmosis is the process in which molecules of the solvent pass via a semipermeable membrane from a lower concentrations to higher concentration or from less concentrated solution to high concentrated solution. In the process of osmosis movement of water takes place.

There are mainly three types of osmosis and these are hypertonic, hypotonic, and isotonic. The process of osmosis is passive transport as water moves from low solute concentration to high solute concentration.

Osmosis is also known as diffusion of water or solvent via a membrane which allows only selective substance to go across the channel. The process of osmosis does not require ATP because it is a passive process.

Therefore,The case in which osmosis occurs is that when there is a selective permeable membrane is present and it allows only selective substances to pass through the channel.

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Which statement about cellular respiration is true?
SERE
O it produces oxygen.
O It requires water.
It is used by every living cell.
O It converts energy to food.

Answers

Answer:

It is used by every living cell

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