Which of the following tools was responsible for advancing our knowledge of cells over the past 400 years?

Answers

Answer 1

Answer: This is life science right? If it is the answer is the microscope

Explanation:

Answer 2
Has to be a microscope Ong

Related Questions

Mitosis involves ___________. (Check all that apply.)

Group of answer choices


growth


diffusion


reproduction


development


Help please!

Answers

growth and development
all of the above, they are all correct if you understand mitosis

compare the circulatory system of a plant and animal

plz help do not copy off anything because this is a unit test

Answers

Answer:

The circulatory system is the method of transport in plants and animals. Animals must have nutrients and oxygen reach every cell in their body. Plants must have nutrients and carbon dioxide reach every cell in their “body.” Both plants and animals must also have waste products removed from their systems.

Explanation:

You are gonna have to change the wording a little but thats ok! An y'know what? I have the same answer on one of my past test we did like a week ago!

Answer:

In plants, there is a conducting tissue that is located in the veins. Inside, there are xylem cells that conduct water and minerals upward from roots to leaves and phloem that conducts food. Plants have only water solutions flowing through the tubing. Animals can have one of two kinds of circulatory systems: open or closed. In animals, each blood vessel in the network is responsible for transporting nutrients and oxygen to cells and for removing wastes and carbon dioxide from cells.

Explanation:

Which statements always apply to the process of diffusion? Check all that apply.

Molecules move from high concentrations to low concentrations.
Molecules move from inside of the cell to outside of the cell.
Diffusion requires proteins in the cell membrane.
Molecules are evenly distributed at the end.
Diffusion requires energy.

Answers

Answer:

A & D??

Explanation:

Yes, I also agree with the answer being A and D

This is my cat but literally no one in my family knows what type of breed she is, she was always really small and finally started to actually grow about a year ago, her eyes are green also they are really pretty, I think she’s pretty young b/c she tends to have a lot of energy and do more then our old black cat, we had an older cat who looked exactly like her but was way bigger, anyone know how to be able to figure out what kind of breed she is?


(I don’t knowwhat kind of subject this would be- so ima put a random one that has to do with science, sry if it’s the wrong one!)

Answers

Browse Breeds. If you want to try to take a guess at your dog's breed yourself, try to browse some breeds to figure it out. ...

Ask Your Vet. As you probably already know, your veterinarian is a doggy expert! ...

mark as brainliest pls

Answer:

It's bread

Explanation:

BREAD CAT

A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?

Answers

Answer:

When you open yours eyes in a brightly lighted area to a dark room (such as a cinema hall), you experience difficulty in seeing objects for a short while slowly, your vision is improved. This improvement is called dark adaptation. This change is due to (a) regeneration of the visual purple (or rhodopsin), the pigment of the rods, which was earlier broken down due to bright light, and (b) dilation of the pupil permitting more light to enter the eyes.

The pupil will constrict. Bright light will contract the muscles of the iris.

What is structure of an eye?

An eye is a spherical structure responsible for vision.

An eye consists of three main layers:

Outer layer: It consists of cornea and sclera. Cornea extends into a membrane like structure called conjunctiva.Middle layer: This layer contains iris, ciliary body and choroid.Inner layer: Consists of retina where an inverted image of the object is formed. The optic nerve carries the visual information to brain.

Two fluids namely aqueous humour and vitreous humour are present which maintain the shape of an eye.

The coloured part of an eye is called iris. It regulates the intensity of the light entering to the eye by controlling the diameter of a pupil (small aperture in the iris).

The lens of an eye is biconvex. It directs the light to the retina.

Therefore, eye is a crucial sensory organ.

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The change in the instruction caused the protein to _________.

-Be incomplete
-No longer exist
-Have the same structure

Answers

Answer:

have the same structure

Explanation:

because if protein is not good how to we get another type of structure

describe and explain experiences/connections from outside of school related to our learning goal: I can use characteristics to organize Bacteria, Archaea, and Eukaryote.

Answers

Answer:

Explanation: An experience I had outside of school related to biology is; I was at the park a long time ago, when i noticed something in the ground, it was a fossil of a bird and it was engraved inside of the concrete.

He is correct

God bless you!!!

Pls help me with this!! (Yea and I know this isnt biology but they didnt have the subject for this)
Now I know that stress changes Earth's crust by changing the_______

Answers

Answer:

plates

Explanation:

Outside crust of the earth

What animals are in Washington D.C

Answers

Answer:

240 species of birds, 29 mammals, 21 reptiles, 19 amphibians, and 78 species of fish

Explanation:

Answer:

Mammals · Bats · Beavers · Black bears, black bears multiple languages · Bobcats · Cougars, cougars multiple languages · Coyotes · Deer · Elk ...

Which structure does a eukaryotic cell have that a prokaryotic does not
A). Ribosome
B). Flagellum
C). Cytoplasm
D). Nucleus

Answers

Answer:

D) Nucleus

Explanation:

answer nucleus

Answer:

I think D maybe

In one or two sentences, compare and contrast the legs of a vertebrate with the legs of an invertebrate.
plssssss no copy and pastes

Answers

Answer:

vertebrate probably has more strength and support while the invertebrate probably has more soft and stuff.

Vertebrates are have well developed and long bones in legs and hands. Whereas, invertebrates have soft short and fragile bones and nerves in legs and hands.

What are vertebrates?

Vertebrata, which means chordates with backbones, is the subphylum of animals that includes all types of animals. The majority of the Chordata, phylum, are vertebrates.

Underneath skin and muscle is where the vertebrate skeleton resides. The brain and spinal cord are enclosed by the skull and vertebral bones, while the heart and other internal organs are shielded by the ribs. The interior core of the legs is made up of long bones.

Exoskeletal material covers almost all exterior features on vertebrates, as well as a few internal ones. These structures include the body, legs, fore and hind digestive tracts, some respiratory surfaces, eyes, mouthparts, antennae, and antennae.

Invertebrates have no vertebral column and are have not developed bones or muscles inside. Insects, mollusks, cnidarians  etc. belongs to this class. Their legs have  no muscle tissues and long vertical bones.

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A student is analyzing data that compare the change in the total number of wading bird nests in the Everglades to the change in rainfall. Wading birds feed primarily on fish. Fewer nests were observed in dry years than wet years.

What is a reasonable inference about the relationship between wading bird reproductive success and water depth in the Everglades?

Answers

Higher water levels cause more birds

The reasonable inference about the relationship between wading bird reproductive success and water depth in the Everglades is the prey density and the vulnerability of prey to capture.

What is wading bird?

Waders, also known as shorebirds, are birds of the order Charadriiformes that forage for food crawling or burrowing in the mud and sand, typically small arthropods such as aquatic insects or crustaceans.

The sandpipers, snipes, and phalaropes family is a diverse group of waders that includes curlews, godwits, turnstones, sandpipers, woodcock, snipe, and phalaropes.

Shorebirds generally wade in shallow water, while others feed on rocky shores.

Prey availability, which includes both prey density and prey vulnerability to capture, can have a significant impact on wading bird foraging success and habitat preference.

Thus, due to availability of more prey in the wet area, the density of these birds are more in that particular area.

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Were does all the energy start from ALL the organisms

Answers

Answer:

The sun

Explanation:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.

Answer:

from sun all the energy starts from All the organisms it is the fact that scientist had proven it

What other populations in Washington D.C. might be impacted by the release of wolves?

Answers

Answer:

Gray wolves for the reintroduction will be obtained from healthy Canadian ... wolf population as threatened and other members of the species

Explanation:

Other population in Washington D.C. that might be impacted by the release of wolves is the skunk and rodent population because the wolves will be looking for easy to catch food

what is seasonal color changing called

Answers

Answer:

fall is the season that the leave starts to change colors so I would call it fall

help I need help and fast cuz I gotta turn this in in like 54 minutes

Answers

Answer:

1803: Dalton presented his chemical combination theory

1897: Thomson discovered electrons

1922: Bohr earned the Nobel prize for his work on the structure of atoms

1926: Schrodinger formulated the wave equation

Explanation:

In which bottles did fermentation occur? How do you know this?

Answers

Answer:

Bottle 2 and bottle 4

Explanation:

Whenever fermentation occurs the liquid experiences natural carbonation in a way. For example if you've ever seen a bottle of kombucha you'll see that it's constantly bubbly and it never stops bubbling. So the production of oxygen inflated the balloons.

In the bottle named as bottle 2 and bottle 4 is showing fermentation, as per the given scenario.

What is fermentation?

Fermentation is an anaerobic chemical process that breaks down molecules like glucose. More specifically, fermentation is the foaming that happens during the creation of wine and beer, a procedure that has been around for at least 10,000 years.

In the absence of oxygen, carbohydrates are broken down by the enzymes of microorganisms during fermentation.

Because they possess distinctive sets of metabolic genes, microorganisms like bacteria and fungus are able to develop enzymes that can break down various kinds of sugar compounds.

Although fermentation can result in a variety of products, the most prevalent ones are ethanol, lactic acid, carbon dioxide, and hydrogen gas.

Commercial applications for these materials include use in food, vitamins, medications, and industrial chemicals.

Thus, in bottle 2 and bottle 4, one can see the inflated balloon which can be an evidence of the fermentation taking place.

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Why does a food web have two decomposer

Answers

the person above me is right

Answer:

Existe un último nivel en la cadena alimentaria que corresponde a los descomponedores. Estos actúan sobre los organismos muertos, degradan la materia orgánica y la transforman nuevamente en materia inorgánica devolviéndola al suelo (nitratos, nitritos, agua) y a la atmósfera (dióxido de carbono).

Explanation:

STATES OF MATTER 2 usa testprep

Answers

Answer:

Air is a gas

water is a liquid

sand is solid

Definite shape is a solid

No definite shape is a gas

Explanation:

I hope this helps.

Which of the following fits in all of the missing boxes? HINT: The answer is the same for all boxes which have a question mark.

A.weathering and erosion B.compact and cement C.cooling and hardening D. heat and pressure​

Answers

I think it’s C, cooling and hardening, but I might be wrong. If it’s wrong then I’m sorry.

Answer:

A weathering and erosion.

Explanation:

Because all of them have to be weathering and/or erosion

For each of earth's four spheres,describe one way that the water cycle affects the sphere

Answers

Answer: Solid, liquid, gas

Guys help me out ;-; Diana and Kinsey are put in charge of choosing a mascot for their basketball team. There are fifteen players on the team, but Diana and Kinsey survey only the five players on the starting lineup about their favorite mascot.

Which best describes this error in data collection?

A. The data are inadequate.
B. The data are false.
C. The data were recorded incorrectly.
D. The data cannot be reproduced.

Answers

probably a, the data is too less to come to a conclusion
A :) . Also inadequate. good luck and sorry if im late

The urinary bladder has to hold and store urine until it is released. What would you predict about the urinary bladder’s structure knowing this about its function?

Answers

Answer:

The bladder's structure is elastic/stretchy in order to expand and decrease for the amount of urine stored.

Yeah he’s right even though I didn’t answer still god bless you!!!

Which best describes the relationship between chromosomes, genes, and inherited traits?
A Genes and chromosomes both carry DNA that determine inherited traits from parents to offspring.

B Genes are located within chromosomes. Genes determine the passing and expression of inherited traits from parent to offspring.

C Chromosomes are located within genes. Chromosomes determine genetic code for inherited traits from parent to offspring.

D Genes are controlled by chromosomes. Chromosomes create mutations and new genes that are passed from parent to offspring.

Answers

B Genes are located within chromosomes. Genes determine the passing and expression of inherited traits from parent to offspring.

Genes are located within the chromosomes. Genes determine the passing and expression of the inherited traits from parents to the offspring. Thus, the correct option is B.

What are Genes?

Gene is the basic unit of heredity and the molecular gene in the nucleus is a sequence of nucleotides in the form of DNA, which undergoes transcription to produce a functional RNA. The molecular genes are of two types: protein-coding genes and noncoding genes. The protein-coding gene undergoes translation to produce functional proteins from RNA.

Chromosomes are present on the DNA molecule which contain the genes. Genes determine the expression of traits in an organism and are transmitted from the parents to their offspring.


Therefore, the correct option is B.

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PLEASE ANSWER REVIEW SHEET BELOW!! DUE IN AN HOUR, GIVING OUT BRAINLIEST!!

Answers

Answer:

1. rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.

2. cant see picc

3. biceps/ triceps?

4.to move bones in opposite directions, pairs of muscles must work in opposition.

5. bicep/ tricep

6. bicep contracts tricep relaxes

7.Both of the muscles need to be equally developed to maintain normal functions.

Explanation:

Assignment: Sexual and Asexual Reproduction Exploration

Common Name Process of Sexual Reproduction Process of Asexual Reproduction Advantages/disadvantages involved in methods of reproduction
Komodo Dragon
Hammerhead Shark
Honey Bees
Jellyfish

here is the page of my question 100 points!!

Answers

Answer:

Parthenogenesis. Parthenogenesis is a form of asexual reproduction in which an egg develops into an individual without being fertilized. ... Two female Komodo dragons, a hammerhead shark, and a blacktop shark have produced parthenogenetic young when the females have been isolated from males.

Explanation:

Why might dew form in the morning?(1 point) The temperature rose overnight, and warmer air can hold more water vapor. The temperature rose overnight, and warmer air can hold more water vapor. The temperature fell overnight, and colder air can hold less water vapor. The temperature fell overnight, and colder air can hold less water vapor. The temperature rose overnight, and warmer air can hold less water vapor. The temperature rose overnight, and warmer air can hold less water vapor. The temperature fell overnight, and colder air can hold more water vapor.

Answers

Why might dew form in the morning:

The temperature fell overnight, and colder air can hold less water vapor.

Hope this helped you- have a good day bro cya)

Dew form in the morning because the temperature fell overnight, and colder air can hold less water vapor. The correct option is c.

What is dew?

As the temperature drops and things get colder, dew forms. The air around an object will cool if it becomes cold enough. Warm air can store more water vapor than cold air, but not as much. As a result, the air around cooling objects is forced to condense water vapor.

At the night, the temperature is less because of not sun. In less temperature, water freezes, and the air consensus turns into drops of water.

Water tends to gather on surfaces and draw itself together as droplets, or dew, since it has high surface tension. It frequently gathers in locations that are naturally chilly.

Therefore, the correct option is c, The temperature fell overnight, and colder air can hold less water vapor.

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Describe the function of the lungs in the respiratory system

Enter your answer in the space provided

please do not copy off anything because this is a unit test please help me 100 points

Answers

Answer:

Functions of the lungs are:

1) It is the most vital organ in the respiratory system for gaseous exchange in the body.

2)It is the organ which oxygenates the deoxygenated blood from the Pulmonary arteries.

3) The lungs’ main role is to bring in air from the atmosphere and pass oxygen into the bloodstream. From there, it circulates to the rest of the body.

Asexually produced offspring are genetically
1. identical to the parent
2. different from the parent
3. different from each other
4. formed by two parents

Answers

1. identical to the parent

the answer is 1.) identical to the parent , because when an organism is produced asexually it is a piece of the parent that is separated.

what is the conglomerate grain pattern?

Answers

Answer:

rounded clasts that are greater than two millimeters in diameter. The spaces between the clasts are generally filled with sand- and clay-size particles. The rock is bound together by a cement that is usually composed of calcite or quartz.

Answer:

Conglomerate forms where sediments of rounded clasts at least two millimeters in diameter accumulate. It takes a strong water current to transport and produce a rounded shape on particles this large. Wind transport is unlikely to produce a conglomerate.

Explanation:

Other Questions
1.a computer can create an output based on the input of the user.process store retrieve communicate personal computer desktop computer laptop computer netbook tablet smartphone server game consoles PLEASE HELP WILL GIVE BRAINLY!!!!!!How has the use of the term "serial killer" changed in our society? Identify the rhyme scheme Read this passage from Phillis Wheatley's poem To the King's Most Excellent Majesty." Labeleach line with a letter to represent rhyme scheme by using the drop-down menus....The crown upon your brows may flourish long,And that your arm may in your God be strong!O may your sceptre num'rous nations sway,And all with love and readiness obey!But how shall we the British king reward!Rule thou in peace, and our lord!Midst the remembrance of thy favours past,The meanest peasants most admire the last..."To the Kings Most Excellent Majesty," Phillis WheatleyDONE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP Mario measured the depth of the river as a function of time and graphed his findings. Use this graph to answer the following question.What is the maximum depth of the river?1 meter22 minutes10 meters9 minutes Read this story to answer question.The American colonies had accomplished an amazing success. Angry about their treatment by the British government, the colonists had protested and then revolted. After winning the Revolutionary War against England, they had formed a new country: the United States of America.During the war, the Continental Congress had formed a government under the Articles of Confederation. This document served as the first constitution of the United States. Because of their experiences with the British government, the colonists had limited the power of the United States central government under the Articles. After the war, however, many people realized that the government had too little power. It could not collect taxes or regulate trade. There was no executive to enforce laws and no court system to make sure laws were fair. The countrys leaders realized the United States needed a new plan of government.Respected people, or delegates, from all the colonies except for Rhode Island met in Philadelphia in 1787 to create a new constitution. For four months the delegates discussed problems and solutionsin secret so that no one would influence the decisions. Finally, in September 1787, they completed the writing of the United States Constitution. The next step was to get the document ratified, or approved, by nine of the thirteen states. That task was not easy.When Americans learned the specifics of the Constitution, two groups formed. People who supported the strong government created by the Constitution were called Federalists. People who worried that the government would be too powerful were called Anti-Federalists. As the states prepared to ratify the Constitution, these two groups worked hard to get people to join their side. Leaders of the Federalists wrote a series of essays published throughout the country. They urged the states to ratify the Constitution without any amendments. Meanwhile, the Anti-Federalists wanted to make sure that peoples rights were protected against the government. It soon became clear that some statesespecially big states such as Massachusetts, New York, and Virginiawere not ready to adopt the Constitution.What were the rights that the Anti-Federalists wanted to protect? The list included the right to speak freely, to worship freely, to have fair searches, and to have a trial by jury. These were all rights that the British government had ignored before the Revolution. Federalists claimed that those rights were protected even though they were not specifically listed. After more than two years of discussions, James Madison proposed amendments, or additions, to the Constitution that would protect a citizens rights. What were the rights that the Anti-Federalists wanted to protect? The list included the right to speak freely, to worship freely, to have fair searches, and to have a trial by jury. These were all rights that the British government had ignored before the Revolution. Federalists claimed that those rights were protected even though they were not specifically listed. After more than two years of discussions, James Madison proposed amendments, or additions, to the Constitution that would protect a citizens rights.The House of Representatives passed seventeen amendments on August 24, and the Senate consolidated them into twelve amendments. The Senate passed them on September 9. In order for the amendments to become law, however, the states also had to approve them. Congress sent the amendments to the states on September 25. The states approved ten of the twelve amendmentsknown as the Bill of Rightson December 15, 1791. The United States had a new government plan that allowed it to become not only the most powerful nation in the world but also the greatest protector of human rights. Select two sentences which demonstrate that it was difficult to get states to ratify the Constitution.Question 1 options:"Because of their experiences with the British government, the colonists had limited the power of the United States central government under the Articles.""After more than two years of discussions, James Madison proposed amendments, or additions, to the Constitution that would protect a citizen's rights.""It soon became clear that some statesespecially big states such as Massachusetts, New York, and Virginiawere not ready to adopt the Constitution.""Respected people, or delegates, from all the colonies except for Rhode Island met in Philadelphia in 1787 to create a new constitution.""The list included the right to speak freely, to worship freely, to have fair searches, and to have a trial by jury." GIVING BRAINLIEST PLS FAST Light of 650 nm wavelength illuminates two slits that are 0.20 mm apart. 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