Explain how pasteur's experiment supported the idea that cells only come from other cells. Explain how it failed to support the idea of spontaneous generation.

Answers

Answer 1

Answer:

Pasteur and Tyndall Louis Pasteur's 1859 experiment is widely seen as having settled the question of spontaneous generation. He boiled a meat broth in a swan neck flask. ... When the flask was turned so that particles could fall down the bends, the broth quickly became clouded.

Explanation:


Related Questions

What might happen to your local hydrosphere and geosphere if conditions in the atmosphere caused rain for several weeks?

Answers

Answer:

the hydrosphere(bodies of water)would cause floods and other natural disasters while the geosphere will become infertile and landscape change (weathering).

Explanation:

What molecule promotes guanosine monophosphate synthesis to regulate the balance of nucleotide pools?
A) ATP
B) UTP
C) CTP
The structures of hypoxanthine and allopurinol are shown above. It is known that allopurinol is an inhibitor of the enzyme xanthine oxidase. What type of inhibitor is allopurinol likely to be?
A) Uncompetitive
B)Competitive
C)Allosteric

Answers

Answer:

Well the answer is A: ATP

Explanation:

Fishes excretory product?

Answers

The excreatory product of fishes is ammonia.

Which of the following is an example of a plant responding to the external stimulus of gravity?

A.) A seedling growing toward a sunny window
B.) A plant root growing down into the soil
C.) Flowers producing nectar to attract bees
D.) a potted plant wilting when it dries out

Answers

Answer:

b

Explanation:

bcs the root grows towards the gravity

Answer:

D

Explanation:

Which two types of stars will enter the supernova phase?

Average and Massive Stars

Average and Supermassive stars

Massive and Supermassive Stars


Neutron and Red Stars

Answers

Answer: Massive and Supermassive stars

Explain how the conversation of wetlands to farmlands has impacted stream and rivers

Answers

Answer:

Wetland reduction has caused a decrease in the absorption zones for excess water. If the excess water cannot be absorbed by the soil, it increases the incidence and magnitude of flooding.

The conversation of wetlands to farmlands has impacted stream and rivers as the Wetland reduction has been caused the decrease in the absorption zones for excess water. If the excess water cannot be absorbed by the soil, it increases the incidence and magnitude of flooding and this can be achieved by sustainability.

What is the process of achieving Sustainability?

Sustainability can be achieved through careful resource management. By managing the resources and making proper use without wasting them ensures sustainability. The concept of sustainability demands careful and responsible people working towards a common goal of resources management.

A union is a term that refers to the association of workers of a company with the aim of defending and promoting their labor interests to the employer. The strike is a protest in which its members refrain from carrying out the activity they normally carry out to the detriment of those to whom they direct their claims.

Therefore, If the excess water cannot be absorbed by the soil, it increases the incidence and magnitude of flooding and this can be achieved by sustainability.

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in chemical reactions, bonds blank in reactants.

Answers

in chemical reactions, bonds break in reactants

1. Provide two examples of why coral reefs are important ecosystems on Earth.
2. Some corals in the warm pools off Ofu Island can withstand temperatures of 32° to 34 °C without bleaching. So, the researchers set up a controlled laboratory experiment to try to determine why these corals survive in such excessive heat. With regard to the experimental design, provide two reasons why Dr. Palumbi devised a standardized test for the corals.

Answers

Answer:

It provides shelter and protection.

Explanation:

Coral reefs are very important to our ecosystems on Earth because it provides shelter to a large population of ocean life and also provide protection to coastlines from strong ocean currents and high waves from causing damage. Dr. Palumbi devised a standardized test for the corals in order to find out that why coral reef can withstand temperatures of 32° to 34 °C without bleaching.

Answer

Dr. Palumbi devised a standardized test for the corals in order to find out that why coral reef can withstand temperatures of 32° to 34 °C without bleaching.

Explanation:

In the answer

How are the graphs of a body chemical controlled by negative feedback and a chemical controlled by positive feedback similar and how are they different

Answers

Answer:

two examples of positive feedback loops that are normal but are activated only when needed. Childbirth at full term is an example of a situation in which the maintenance of the existing body state is not desired.

Explanation:

Fog will usually form if the temperature and _______ match.

Answers

Answer:

dew point

Explanation:

i looked it up but i could be wrong

Answer:
dew point

Explaination:

Which two are locations where protozoa are most likely found?

decaying matter
polluted air
dirty water
skin contact
unwashed clothes

Answers

Answer:

the two locations that are most likely found is dirty water and polluted air

An embryo forms inside a fertilized female egg of invertebrates. true or false.

Answers

Answer: If fertilization of the egg occurs within the female body, the fertilized egg is then laid outside the female body. If the fertilization took place outside the body, the fertilized egg remains outside the female's body. Now an embryo begins to form within the fertilized egg.

Explanation:

Answer: If fertilization of the egg occurs within the female body, the fertilized egg is then laid outside the female body. If the fertilization took place outside the body, the fertilized egg remains outside the female's body. Now an embryo begins to form within the fertilized egg.

Explanation:

Please give the answer for this!

Answers

for the first picture the stimuluis is light and the respons is phototropism(the plant is oriented towards the source of the light)

for the second picture the stimulus is the signt and smell of the food. the respons is salivary secretion

Answer:

1.

Stimulus: The light

Response: The plant gets light energy required to function

2.

Stimulus: The food in the bowl

Response: The dog digests the food absorbing nutrients needed to continue operating.

Hope this helps, feel free to give brainliest :)


How has the size of U.S. farms changed since World War II?

Answers

Answer:

Farmers Produce More Food for War in World War II. As the war approached, it got worse for farmers before it got better. Farming exports fell 30 to 40 percent below the average of the ten depression years that preceded the war. Grain exports, for example, fell 30 percent in one year between September 1939 and 1940.

Explanation:

In a plant, leaf color and leaf shape are controlled by two linked genes. Leaves of the wild plant are red (R) while a recessive mutation in this gene causes leaves to be white (r). Wild-type leaves are pointed (P), while a recessive mutation in this gene causes them to be smooth (p). For a parent plant that is heterozygous for both traits with both recessive mutations on one chromosome, what genotypes will its gametes be

Answers

Answer:

The genotypes of the gametes are:

RP (parental), rp (parental), Rp (recombinant), rP (recombinant)

Explanation:

Available data:    

Leaf color and leaf shape are controlled by two linked genes.Leaves of the wild plant are red (R) while a recessive mutation in this gene causes leaves to be white (r).Wild-type leaves are pointed (P), while a recessive mutation in this gene causes them to be smooth (p). Parent plant heterozygous for both traits with both recessive mutations on one chromosome

Parent) RP/rp ---> RP are in one chromosome, while rp in another  

                             chromosome

Gametes) RP (parental)

                rp (parental)

                Rp (recombinant)

                rP (recombinant)

Which organ is found in the digestive system?


heart


lungs


stomach


kidneys

Answers

Answer:

Stomach

Explanation:

Answer:

stomach.    :)

Explanation:

trust me this is the right anwser the one up is right and i also toke the quiz.    :)

Megalodon left an awful lot of teeth behind, but don't worry. It is likely that it had plenty of extras. Like modern sharks, Megalodon had several rows of teeth. Scientists believe that Megalodon had six rows of 7-inch-wide, razor-sharp teeth, top and bottom, for a total of 276 teeth in its giant jaws! It's no wonder, then, that this ancient shark left so many of them behind. Without this trail of teeth, we would not know that these enormous creatures swam the ancient oceans as a top predator.Select two sentences from below that best show that the author wants the reader to be able to relate Megalodon's size to everyday life




A.What would you expect a creature whose name means “big tooth” to look like?
B.The Megalodon shark deserves this title.
C.As the Greek roots mega- (“big”) and don (“tooth”) suggest, this awesome prehistoric creature certainly did have huge teeth—as well as a massive and powerful body.
D.Scientists estimate that these gigantic sharks stretched as long as 60 feet.
E.If you're having trouble imagining that, just think of a school bus, typically about 45 feet in length.
F.Now, imagine a shark just a bit larger than that school bus—with 7-inch teeth.
G.Yes, this ancient fish certainly earned the prefix mega!
H.Since these sharks are extinct, how do we know exactly how huge and powerful the Megalodon shark was?

Answers

The answer is D and F. I did the test

A team from New York Presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. What would the team need before it draws a conclusion about the cases?

A. medications that are specifically designed to treat the sickness

B. machines that are built to process blood and reduce symptoms until patients are healthy again

C. data that profile the various patients who report these symptoms

D. proof that the excess sweating is related to the excessive kidney stones

Answers

Answer:

C the data the profile symptoms

Explanation:

The team that required prior to drawing the conclusion related to the case should be option c. where the profile shows the symptoms of various patients.

Reasons for excess sweating and kidney stones:

The main reason of excessive sweating is the dehydration that means we are not drinking sufficient water due to which the risk of the kidney stones should be increased.

If the protein diet is high, or there is high salt intake, or high sugar intake due to this also the stones chances are high.

Therefore, the option c is correct.

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What process lead to biological nitrogen fixation?

Answers

The Rhizobium or Bradyrhizobium bacteria colonize the host plant's root system and cause the roots to form nodules to house the bacteria. The bacteria then begin to fix the nitrogen required by the plant.

How are breathing and cellular respiration similar? Both involve using ATP to fuel other chemical reactions. Both use oxygen and produce carbon dioxide. Both involve breaking down glucose to produce ATP. Both require water in order to take place.

Answers

Answer:

A. Both involve using ATP to fuel other chemical reactions.

Explanation:

Answer:

Both involve using ATP to fuel other chemical reactions.

Explanation:

Sponges, members of the phylum Porifera, are sessile filter feeders that lack tissues or organs. Instead, specialized cells have unique functions like ingesting food, support, and reproduction. Such specialization within a sponge body is a result of
A) cytokinesis.
B) cell cleavage.
C) cell differentiation.
D) gamete fertilization

Answers

Answer:

C) cell differentiation.

Explanation:

Cell differentiation is a process undergone by a cell in which it changes to a specialized form. During the process of cell differentiation, some genes in a single cell becomes turned off or on in a process called GENE EXPRESSION to give rise to cells with specialized functions.

This is the case of this sponge whose specialized cells perform unique functions like ingesting food, support, and reproduction. The specialization of the cells within the sponge is as a result of the process of CELL DIFFERENTIATION.

The direction of blood travel can be determined by:
O1) the size of the blood drop.
O2) the shape of the blood drop.
O3) the distance it has to travel.
O4) AIl of the answers are correct.

Answers

I think the answer is 04

The direction of blood travel can be determined by the shape of the blood drop. Therefore, option B is correct.

What is blood pattern analysis?

To ascertain what actions could have produced the bloodstains and/or patterns shown, bloodstain pattern analysis studies are carried out.

Bloodstains can be divided into three categories: projected or impact stains, transfer stains, and passive stains. Passive stains, which can take the form of droplets, flows, and pools, are frequently caused by the weight of an injured body.

In order to determine if it is human blood and then create a DNA profile, analysts or investigators frequently soak up pooled blood or swab small quantities of dried blood. When there are numerous victims, this becomes extremely important. Thus, option B is correct.

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A bird catches and tries to eat a caterpillar. The caterpillar has a bad taste, so the bird lets the caterpillar go. The next time it sees the same kind of caterpillar, the bird avoids eating it.

Which best describes this behavior?

Answers

The Monarch Butterflies contains chemicals in its body that make it taste bad to birds. The birds learn that if they eat these Butterflies that they will have a bad taste.

Answer:

The caterpillar has a bad taste, so the bird lets the caterpillar go.

Explanation:

Each of the following about cells and the cell cycle is true except

A. Cells divide more often during growth
B. The cell cycle is regulated by both internal and external factors
C. Cells divide only when touching other cells
D. Different cells divide at different rates

Answers

Answer:

i think iam not sure it is C

C. Cells only divide when touching. in fact if the cell is surrounded on all sides by other cells it will not divide at all. hope this helps:)

What is the percent by mass of a solution that contains 3g of salt in 12 g of solution?

Answers

Answer:

25% salt

Explanation:

(3÷12)×100

=25%

What are the properties of water that you can observe when transpiration takes place?

Answers

Answer:

When water evaporates through the leaves, a pull is created through the xylem, and water moves back to the leaves. This is known as the transpiration pull.

It refers to the group of ecosystem sharing the same climate

Answers

Answer:

The correct answer is - Biome.

Explanation:

A biome is large area with a particular climate in this region of the earth and typical animals found in the particular area. Biom have different group of ecosystem present in it but live together in a particlular or same climate.

All plants and animals found in every biome has advantage as biome have specific traits like temerature, precipitation, sunlight or humididty and mnymore that help in surviving. For instance, polar bear will live only low humidity and low temperature.

Transformation is the process by which a bacterium
O A. lies dormant in a cell for many weeks
B. adds DNA taken in from its environment
C. switches to the bacterial lytic cycle
D. injects its DNA into another bacterium
SUBMI

Answers

Answer:

adds DNA taken in form its environment.

Answer:

adds DNA taken in from its environment

Why is mitosis so important? 3 complete sentences

Answers

Answer:

Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells. During this process, it is essential that the daughter cells are exactly the same with the same copies of DNA.

Explanation:

Which two substances are among the four major types of organic compounds made by living things?
A. Water
B. Nucleic acids
C. Lipids
D. Carbon dioxide​

Answers

The two substances that are among the four major types of organic compounds made by living things are nucleic acids and lipids.

What are organic substances?

Organic substances are substances that are from living sources.

There are four major organic substances produced in nature and are as follows:

CarbohydratesLipidsNucleic acidsProteins

Therefore, the two substances that are among the four major types of organic compounds made by living things are nucleic acids and lipids.

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Answer:

Lipids and Nucleic acids

Explanation:

I took the test

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