How did Francesco Redi disprove the idea of spontaneous generation?
He showed that flies were not produced by meat.
He showed that microorganisms are present in air.
He showed that microorganisms cause disease.
He showed that flies spread disease.

Answers

Answer 1

Francesco Redi showed that microorganisms are present in air thereby disproving the idea of spontaneous generation and is denoted as option B.

What is Spontaneous generation?

This is supposed production of living organisms from non living substances.

The jar was left open and had maggots in it means the flies laid their eggs which later turned to the maggot which was what Redi observed during the experiment.

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Related Questions

what process is responsible for the absence of glucose and amino acids in urine

Answers

Answer:

The force of hydrostatic pressure in the glomerulus (the force of pressure exerted from the pressure of the blood vessel itself) is the driving force that pushes filtrate out of the capillaries and into the slits in the nephron

Selective reabsorption can be considered the process responsible for the absence of glucose and amino acids in urine.

What is selective reabsorption?

The selective reabsorption mechanism allows the absorption of different substances including glucose and amino acids in the urine.

This reabsorption occurs after filtration in the capillaries of the urinary system.

The filtration and excretion of waste substances are associated with the formation of urea.

In conclusion, selective reabsorption can be considered the process responsible for the absence of glucose and amino acids in urine.

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which symptom is not included in the diagnosis of water intoxication?

Hyponatremia
Loss of electrolytes
Confusion
Cell shrinkage

Answers

Cell shrinkage will be the answer

Why did the Indian railways, relplace 'kulhads' by paper cups ?​

Answers

Answer: The Indian Railways plan to replace the plastic cups at all railway stations to kulhads for the promotion of an environmentally-friendly India that is plastic-free. ... Kulhads in railway stations was introduced in 2014 by the then Union Railways Minister, Shri. Lalu Prasad Yadav.

Hope this helps!

the Indian railways plan to replace the plastic cups at all railways station to kulhads for the promotion of an environmentally friendly India that is plastic free

Why can enzymes be used over and over again

Answers

Answer:

Enzymes are biological catalysts. They catalyse biochemical reactions. They increase the rate of reaction. They do not chemically react or get utilised in the reaction so enzymes can be used over and over again.

Giving 10 points away please help me with this question ASAP!!!!

Answers

Should be D) I think.

which of the following produces more energy for the next trophic level?
A. humans
B. grasshoppers
C. snake
D. spiders

Answers

i thinks it’s grasshoppers or humans, not sure

What are chromosomes? When do chromosomes form?

Answers

Answer:

Chromosomes are coiled structures made of DNA and proteins. They contain genes, which basically code for proteins. Chromosomes form after DNA replicates. In other words, chromosomes form as DNA becomes foiled during the process of prophase I, thus creating chromosomes.

Hope this helped! :)

Para ya por favor Cual de los siguientes planteamientos se cumplen en relación a la energía en un ecosistema * A.La energía fluye de los heterótrofos a los autótrofos B.La energía, a menudo se libera de un ecosistema en forma de luz C.La organización de productores-consumidores y descomponedores muestra como la energía se concentra de manera mas alta en los descomponedores D.Para la mayoría de los ecosistemas la energía proviene de la luz

Answers

Answer:

D.Para la mayoría de los ecosistemas la energía proviene de la luz

Explanation:

Los ecosistemas requieren de un suministro constante de energía para poder sustentar la vida. A excepción de ecosistemas basados en fuentes hidrotermales, en general este aporte energético proviene del sol que suministra energía lumínica la cual es convertida por los organismos productores (por ej., plantas y algas) en compuestos orgánicos. Los productores representan la fuente de energía y alimento de consumidores primarios (por ejemplo, herbívoros), los cuales a su vez sirven de sustento para consumidores secundarios (por ej., carnívoros), estos suministran de alimento a los consumidores terciarios y así sucesivamente. Finalmente, los descomponedores son aquellos microorganismos que se alimentan de los restos orgánicos obtenidos a partir de productores y consumidores.

Write the name of the organs found in middle ear with their function.​

Answers

Answer:

tympanic cavity .. The primary function of the tympanic cavity is to offset the decrease in acoustic energy that would occur if the low impedance ear canal air directly contacted the high-impedance cochlear fluid.

Explanation:

Cystic Fibrosis is an autosomal recessive disorder. Neither parent has the disease Their first child (Joey) Has cystic fibrosis. What is the genotype of Joey? Use th letter A for the alleles for cystic fibrosis.​

Answers

I answered it in the other questions spot

Which of the following is a function of the lymphatic system?
a.
filters blood
c.
produces red blood cells
b.
absorbs nutrients
d.
produces bone marrow



Please select the best answer from the choices provided


A
B
C
D

Answers

A-Filters Blood
YW;)

The DNA strand and pre-mRNA strand are anti-parallel. With this in mind label the 3' and
5' ends of the pre-mRNA strand in Model 1. Where would i put it??

Answers

Answer:

I think the right side is 3 prime and left sde is 5 prime

Explanation:

Because the process of transcription takes place in nucleus so it should be put inside the nucleus.

What is nucleus?

In genomics, a nucleus is a membrane-enclosed organelle within a cell that houses the chromosomes.

What is Transcription?

The process in which  information of a strand of DNA is copied into a new m RNA molecule is known as Transcription.

The  enzyme responsible for transcription is RNA polymerase.

Transcription start when RNA polymerase binds to a promoter region at the start of a gene directly or through helper proteins.

Initiation, Elongation, and termination are the three steps of transcription.

Transcription is carried out with the help of enzyme RNA polymerase and some proteins known as transcription factors.

Enhancer and promoter sequences are the  DNA sequences on which transcription factors attach to initiate the transcription process by directing  RNA polymerase to the correct transcription site.

The transcription initiation complex is made up of transcription factors and RNA polymerase working together.

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What is the most popular gamefish in Florida

Answers

Answer:

Sailfish

Explanation:

Answer:

Sailfish.

Explanation:

A scientist crosses two black iguanas and gets the following results of the offspring: Some
are really dark black, some are dark shades of gray, some are medium gray, some are light
shades of gray, and some are white. What type of inheritance pattern did he observe?

Answers

Answer: polygenic inheritance

Explanation:

What did Mendel discover
that true-breeding pea plants
do when allowed to self
pollinate?
A. They seldom have offspring with the
same traits as the parent plant.
B. They always have offspring identical to
the parent plant.
C. They always have offspring that
differed from the parent plant.

Answers

Answer: B. They always have offspring identical to the parent plant.

Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?
A. The similarities suggest that chickens and humans are the direct descendants of modern-day fish with tails and gill slits.
B. The similarities suggest that vertebrates pass through each of the adult stages of their evolutionary history as they develop.
C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species.
D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.

Answers

Answer:

C

Explanation:

Answer:  D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.

Explanation:

it's right

1 2 3 4 5 6 7 8 9 10

TIME REMAINING

01:17:23

Which statements describe hormones in plants? Check all that apply.


Cutting stems can stimulate hormones to start lateral leaf growth.


Some tropisms are controlled by hormones.


Cells grow faster in areas where auxin is concentrated.


Hormones help buds form and grow in the winter.


Auxin is the only hormone involved in plant development.


(i know that the first 4 are not right and neither are A, B, and D (1, 2, 4)

Answers

Answer:

The correct statements are: 1, 2, and 3.

Cutting stems can stimulate hormones to start lateral leaf growth.

Some tropisms are controlled by hormones.

Cells grow faster in areas where auxin is concentrated.

Explanation:

Plant hormones such as Auxins perform various roles and helps in the growth and development of the plants. Cutting the main stem of the plant stimulates the auxin hormone and which stimulates the lateral elongation growth of the leaf growth.

Some tropisms are controlled by the hormones such as phototropism by auxin as a high concentration area of the auxin causes cell growth in a particular area and the concentration of auxin is stimulated by light.

The following is a growth curve of bacteria. What type of growth curve is pictured? A) linear growth B) logistic growth C) exponential growth​

Answers

Answer:

C) exponential growth​

In the given figure, exponential growth curve is pictured.

What is exponential growth?

It is the pattern of data, which demonstrates greater enhancements with passing time, giving rise to a curve of an exponential function. During the growth cycle of bacteria, the cells of bacteria goes through different phases, that is:

Lag phaseExponential phaseStationary phaseDeath phase

In the case of bacteria, the cells enter the log or the exponential phase after the lag phase. This is the time when the cells get differentiate by the process of binary fission and double in numbers after each generation time.

In this pattern of growth, the metabolic activity is high as RNA, DNA, the components of the cell wall, and other substances essential for growth are generated for differentiation.

Thus, the pattern of growth demonstrated in the given figure is exponential growth.

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Which of the following describes a function of the endoplasmic reticulum within a cell?

intracellular transport
lipid synthesis
protein modification
DNA storage

Answers

Answer:

  lipid synthesis

  protein modification

  intracellular transport

This is if you have to pick more than one

Explanation:

Because i got it wrong

The most important function of the endoplasmic reticulum is intracellular transport within the cell but ER also performs other functions.

What is intracellular transport?

The Endoplasmic Reticulum transports nutrients from one part of the cell to the other within the cell.

What is Endoplasmic reticulum?

The endoplasmic reticulum (ER) is a continuous membrane structure in eukaryotic cells that forms a series of flattened sacs inside the cytoplasm.

There are two forms of ER that are commonly found:-Rough ER, which has  ribosomes embedded within its structure, giving it a rough appearanceSmooth ER, which lacks these ribosomes and hence appears smooth.

The endoplasmic reticulum (ER) plays an essential role in protein synthesis, folding, modification, and intracellular transport.

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Help please!! I'll name you brainliest!!

Answers

Answer:

I believe it will be decreased snow cover

Fossils in _______ layers of rock are generally estimated to be _______ than fossils found in the deeper layers. (3 points)

older, younger

newer, younger

older, older

newer, older

Answers

Answer:

Answer number 2

Explanation:

So in Geology, Precipitation of rock layers took place over the last hundreds of millions of years...During that process many living organisms have died and are precipitated with the rock layers... Let me explain with an example.

Dinasours went extinct Million years ago while the Dodo bird went extinct a couple of hundred years ago

Would you expect to find Dinasour fossils in newer rock layers or the dodo? lets's say 200m deep? Dodo for sure, Dinasour fossils are waay too old to be found at such shallow deeps that's why fossils in newer layer of rocks are absolutely younger than fossils found at deeper layers

Older, younger, older older

What does it mean to die of "natural causes" or to die of "old age"?

Answers

Explanation:ya que el cuerpo se dessasta por  estar en funsionamieto pormucho tiempoc

Logically speaking, dying of “natural causes” means dying from diseases such as a stroke, heart disease, and other illnesses are the most common ones. Although, not all things are natural causes of death like car accidents.

On the other hand, dying of “old age” is quite similar. It just means someone who is old died from a disease. You can’t actually die of old age. Older people just have a higher chance of getting illnesses than younger people, and possibly dying from it.


I hope that made sense. If it didn’t, I’m sorry there’s no other way for me to explain it properly

The external openings of the airway include which of the following features? (multiple answers)

mouth
lungs
alveoli
nose
diaphragm

Answers

Answer: mouth, nose

Explanation:

Soil erosion can increase when humans remove trees and other vegetation from an area. What

is this process called?

A. decomposition

B. conservation

Answers

I think the answer is B.conservation:)

PLEASE HELP MEEEEE YOU WILL GET THE BRAINELIST

PLEASE WRITE A SUMMARY ABOUT THE LAW OF UNIVERSAL GRAVITATION

Answers

Answer:

When NASA sends rockets into space, they have to contend with a lot more than just astronaut training, fuel loads, and an overall mission objective. The astrophysicists who plan space travel must also contend with fundamental laws of physics. Chief among these is Sir Isaac Newton’s law of universal gravitation.

Explanation:

Distinguish between apocarpous and syncarpous

Answers

1.The Flower Has Several Ovaries In Apocarpous.There is a single ovary in syncarpous
2. On maturity apocarpous ovary forms fruitlet of aggregate type. on maturity syncarpous ovary forms a simple fruit.
Hope either of these helped


What is a cell?
a. The smallest unit of the atom
b. The smallest unit of life
c. The largest unit of life
d. The smallest unit of a
population

Answers

Answer:

b

Explanation:

What does helicase do?

Answers

Answer:

Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.

Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid

Perform transcription by using the following piece of DNA. Introns are underlined. Write the final strand of mRNA created.
T A C C G T A C A A T G G G A T C

Answers

Answer:

A-T-G-G-T G-T T-A-C C C-T-A-G

Explanation:

TACCGIA CA ATG G GATC

A-T-G-G-T G-T T-A-C C C-T-A-G

The "I" in the first few letters shouldn't probably be there since there are only 4 bases: A, T, C, and G.

which two adaptations of herbivorous enables them to digest cellulose​

Answers

Answer:

Cellulose Digestion in Herbivores

By means of the symbiotic gut bacteria, cellulose can be digested by herbivores with the help of monogastric digestion. Herbivores are less efficient than ruminants in the case of extracting energy from the digestion of cellulose. Here, cellulose is digested by microbial fermentation.

Explanation:

Their molar and premolar teeth help to crush and grind the food and bacteria present in their caecum help in the digestion of cellulose.

How does herbivorous digest cellulose​?

Cellulose is a polysaccharide made up of repeating glucose units linked by β-1,4-glycosidic bonds, only herbivores are able to digest this biomolecule.

Herbivores have molar and premolar teeth, this flat molars (back teeth) with rough surfaces, which are used for chewing up tough plant tissues. Ruminants have rumen having bacteria which are enabled animals to digest cellulose.

Inside the rumen of cattle, certain bacteria and protozoans are able to secrete the enzymes, which break the cellulose and convert it into glucose units to provide energy.

Therefore, teeth and bacteria two adaptations of herbivorous enable them to digest cellulose​.

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I need a 4 Othello decision quotes A compound is composed of 53.33%carbon, 11.11%hydrogen and 35.56%oxygen. If the molecular mass of the compound is 90, what is the molecular formula of this compound? Chandra X-ray observatory has reported that they have found a new star near our solar system. The Chandra X-ray telescope detects x-rays in space. What does the use of the x-ray telescope review about the newly found star? ( PLS EXPLAIN Y THE ANSWER IS CORRECT)a. The star produces electromagnetic waves with shorter wavelengths than visible light.b. The star produces electromagnetic waves with lower frequencies than visible light.c. The star produces pictures in addition to electromagnetic waves.d. The star produces vibrating electrons como se dice "Tommy" en espaol Why were the crusades initiated? what normally falls under general education requirements at a college Pls pls helppp and thank youuu can u get this right? Please help asap!!!! Question 8 of 10 What is the median of this data set? 14, 18, 31, 34, 44, 50 AL32.5 O B. 33 C. 31.5 D. 31 3Select the correct answer from each drop-down menu.A cross section is the intersection of a and a In a small, closed economy, national income (GDP) is $400.00 million for the current year. Individuals have spent $150.00 million on the consumption of goods and services. They have paid a total of $200.00 million in taxes, and the government has spent $150.00 million on goods and services this year. Use this information and the national income identity to answer the questions. How much is spent on investment in this economy Based on your data, what is the experimental probability that the family has two dogs or two cats? (Heads= dogs and tails=cats)My table: Heads, Heads15Heads, Tails 9Tails, Heads 16Tails, Tails 10Total50 Also, please explain your answer. What question is answered by the following passage from "Winchester Mystery House"?The Victorian architectural period was from about 1825 to 1900. Victorians drew deeply from history, nature,geometry, theory, and personal inspiration to create their designs.a. When was the Victorian period of architecture?b. What inspired Victorian architects?c. Why was history important to Victorian architects?d. both a &be. both b&cPlease select the best answer from the choices providedBSave and ExitNESubmitMark this and return A small pond contains 8 catfish and two bluegill. If eight fish are caught at random what is the probability that all of them are catfish 3 Stimuli Plants that adapt to what is your experience about water pollution What's the author's purpose and how does it shape the content and delivery?? Please help i need to get these right or i fail WILL GIVE BRAINLEST!!! The cut edges of a board show abrasion marks.O TrueO False