Answers
1. Redi tested the hypothesis by conducting the meat-jar experiment.
2. His conclusion would be that maggots do not come from meat.
Testing hypothesesHypotheses are tentative statements that are yet to be tested whether they are true or not.
In science, hypotheses are tested using well-designed experiments.
The belief that living things can come from non-living objects is known as spontaneous generation. It was a widely held belief for a long time until experiments are performed to prove otherwise.
Francesco Redi was able to test the hypothesis by conducting the meat-jar experiment. Many believe that maggots spontaneously come from meats.
By observing flies laying eggs on the meat in the uncovered jar, the notion that meats spontaneously give rise to maggots was totally dispelled. The eggs hatch to give rise to maggots.
Redi's conclusion would be that flies give birth to maggots through their eggs. Meats do not spontaneously give rise to maggots.
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Related Questions
Where does protein production start and finish?
Answers
Answer:
In prokaryotes, it occurs in the cytoplasm. In eukaryotes, it initially occurs in the nucleus to create a transcript (mRNA) of the coding region of the DNA. The transcript leaves the nucleus and reaches the ribosomes for translation into a protein molecule with a specific sequence of amino acids.
Explanation:
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If one parent is heterozygous and the other parent is homozygous recessive what is the probability that their child will be homozygous recessive?
Answers
If one parent is heterozygous and the other parent is homozygous recessive then the probability that their child will be homozygous recessive is 50%.
How do we calculate probability in genetics?Genetic probabilities refer to the likelihood to inherit a given genotype, which may be associated with a phenotype. These probabilities can be calculated by a Punnet square which indicated different genotypes in offspring.
In conclusion, if one parent is heterozygous and the other parent is homozygous recessive then the probability that their child will be homozygous recessive is 50% (monogenic traits).
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A society's foodways are (choose best answer):
A)Nonessential to its structure and survival
B)Stable and unchanging over time
C)Flexible and overlapping
D)Products of colonization
Answers
Hope this helped you :)
the root hair originated from
Answers
My head and body parts
Look at the microscope image of cheek cells below. Identify which letter represents the area where DNA is stored.
Answers
Answer:
nucleus
tissues
proteins
'X' represents the nucleus of the cheek cells which is the area where DNA is stored.
What is DNA ?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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what is another name for plants fats?
Answers
Help fast
Timer on help help
Answers
Answer:
The down one I think So it's an correct answer hahaha
Answer:
-induction
-conduction
Explanation:
What are 3 sinks of nitrogen? What organisms release nitrogen from these sinks?
Answers
The best 3 sinks of nitrogen are developing roots, leaves are the major sinks during the vegetative phase.The flowers, fruits and seeds are major sinks during the reproductive phase of the plant.
What is the role of nitrogen in plant ?It is the component of various chemicals and substances that are synthesized in plants along with playing role in atmosphere as well.
Nitrogen fixing bacteria that are the organisms which release nitrogen from the plants that is the organisms that are helping fix nitrogen in plants as well along with playing role in atmospheric nitrogen fixation as well. Some of the bacteria are nitrobacter, rhizobium in the root nodules of roots.
Cyanobacteria that is the blue green algae that plays in the fixation of nitrogen as well. Nitrogen is being passed from one organism to other through the passing of food chains and the dependency of organisms on each other makes nitrogen move from source to sink.
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Which statement best explains why a new scientific investigation would be performed to test a theory that is already accepted?
loss of funding for new theories
the lack of availability of new theories
the discovery of new evidence
public pressure and demand for change
Answers
The statement that best explains why a new scientific investigation would be performed to test a theory that is already accepted is- the discovery of new evidence
Scientific investigation is a process of finding answers to a question using various research tools. They are used to confirm the various hypothesis that are proposed by various scientists.
In an investigation, there are steps that needs to be followed-
1. Establish hypothesis.
2. Determine the objective of the experiment.
3.. Perform experiment and collect the data
4. Make an observation
5. Analyzing the result and drawing the conclusion
6. Present the findings
Scientific investigation is done to to test a hypothesis. But whenever a new discovery is announced it opens the door for more investigation to test the present theory.
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Which field of biology primarily studies
disease-causing
organisms?
A. ecology
B. virology
C. taxonomy
D. "tree of life"
Answers
B. virology
Explanation:Virology is the scientific discipline concerned with the study of the biology of viruses and viral diseases, including the distribution, biochemistry, physiology, molecular biology, ecology, evolution and clinical aspects of viruses.
I did the quiz
what is the purpose of the micro filament formation that makes the mitotic spindle
Answers
Answer:
The mitotic spindles formed during prophase are composed of microtubules and have a ropelike structure. The function of the mitotic spindle is to help to equally divide the chromosomes in the parent cell to ensure that equal, identical copies are found in both daughter cells after mitosis is complete.
Explanation:
at wich times on this paragraph would you expect that the boys growth plates have stopped creating new bone
Answers
The times where a person would expect that the boys growth plates have stopped creating new bone is when the boys are between 15–17 years of age.
What age do male growth plates close?The Growth Plates is one that often closes at the end of puberty and this is one that often occurs between the ages of 13 and 15 for girls as well as between 15 and 17 years for boys.
Note that some studies also reveals that there are some rear cases where some men continue to develop just slightly after the age of 18 and it is one that is rarely seen above twenties.
Therefore, based on the above, The times where a person would expect that the boys growth plates have stopped creating new bone is when the boys are between 15–17 years of age.
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Why do the polypeptides made in prokaryotes always contain formyl methionine as the first amino acid?
Select one:
a.
The terminator tRNA adds methionine amino acid first.
b.
The terminator tRNA adds formyl methionine first.
c.
The initiator tRNA adds methionine amino acid first.
d.
The initiator tRNA adds formyl methionine first.
Answers
In translation process, the initiator tRNA adds formyl methionine first.
What is translation ?Translation is the formation of protein from m-RNA. Similar to mRNA synthesis, protein synthesis can be broken down into three stages: initiation, elongation, and termination.
The first stage of protein synthesis is the formation of an initiating complex.This complex in E. coli is composed of the short 30S ribosome, the mRNA template, three initiation factors (IFs; IF-1, IF-2, and IF-3), and a particular initiator tRNA known as tRNA Metf.Met-tRNAThe initiator tRNA, or I is a particular tRNA that carries the amino acid methionine.Instead of looking for the Shine-Dalgarno sequence, the eukaryotic initiation complex looks for the 5′ cap of the eukaryotic mRNA. It then follows the mRNA from 5′ to 3′ until the AUG start codon is found.Currently, the Met-tRNAi, mRNA, and 40S subunit complexes interact with the 60S subunit.To know more about RNA :
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Which of the following are roles that prokaryotes play in the environment? Select all that apply.
Group of answer choices
(a) parasitizing eukaryotes, causing diseases
(b) breaking down organic matter
(c) fixing oxygen into water to be used by plants
(d) going through fermentation to produce foods like sauerkraut and pickles
(e) metabolizing materials in extreme environments like very acidic or salty
Answers
Answer: All of them are correct except maybe d but that depends
Explanation:
Urgently!! I have test tomorrow!! I Need To Know!!
Which organelle is responsible for moving material around inside the cell (Conveyor belt)?
Answers
Answer:
The ER (endoplasmic reticulum)
Explanation:
The steps involved in building a protein. The smooth ER helps transport materials within the cell. Hope this helps!!
What would happen to the amount of oxygen produced during photosynthesis, if a plant was
deprived of water?
O There would be no change in oxygen production
O Oxygen production would immediately stop
O More oxygen would be produced
O Less oxygen would be produced because water is required during the light dependent stage
Answers
Answer:
Less oxygen would be produced because water is required during the light dependent stage
Explanation:
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The patient is showing symptoms of Alzheimer's Disease. The
cells have unusual shapes and are not dividing correctly. There are a lot
less organelles giving the cell a shape.
Which organelles are involved?
Answers
The cell organelles affected in Alzheimer's disease are the mitochondria, lysosomes and the centrosomes.
What are cell organelles?Cells organelles are specialized structures found within the cell that perform a specific function.
The various cell organelles found within the cells include:
mitochondrianucleusendoplasmic reticulumlysosomescentrosomesGolgi bodiesAlzheimer's disease affects the neurons in specific regions of the brain that function in memory and thinking.
The cell organelles affected in Alzheimer's disease are the mitochondria which produce energy, the lysosomes which remove unwanted proteins from the cell and the centrosomes which are involved in cell division.
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What is the period of an ocean wave?
OA. The time it takes for two successive crests to pass a stationary
point
OB. The time it takes for one crest and the following trough to pass a
stationary point
OC. The distance between a crest and a trough
OD. The distance between two successive crests
Answers
The period of an ocean wave is option A. The time it takes for two successive crests to pass a stationary point.
The time period T is the time it takes one wavelength or two consecutive troughs (or crests or another wave reference factor) to bypass by using a fixed position.
A wave is a propagating dynamic disturbance of 1 or greater quantities. Waves can be periodic, in which case those quantities oscillate again and again about an equilibrium fee at a few frequencies. A wave is a disturbance in a medium that carries energy without a net motion of particles. it is able to take the shape of elastic deformation, a version of pressure, electric powered or magnetic intensity, electric ability, or temperature.
The period of a wave can be measured with the aid of selecting any time on the graph to be the initial time, and the time it takes to return to that position at the same time as heading inside the same route as the very last time.
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2 Answer:
Refrigeration is the most effective means of preserving a food
product.
a. true
b. false
3 Answer:
Chemical drying uses a chemical substance to remove moisture from
the surface of a food.
a. true
b. false
4 Answer:
Food preservation is a condition in which food becomes unsafe to
eat.
a. true
b. false
5 Answer:
The palatability of a food is important because it has a strong
effect on the food's nutritional value.
a. true
b. false
6 Answer:
Another name for using ionizing radiation to process food
is _____.
a. osmosis c. cold sterilization
b. gamma radiating d. heat processing
7 Answer:
Liquid added to a can or jar before canning a fruit or vegetable is
called canner's _____.
a. retort c. brine
b. hot fill d. fluid
8 Answer:
_____ is fluid that accumulates on the outside of a frozen food
product when it is thawed.
a. Drip c. Osmosis
b. Freezer burn d. Aseptic liquid
9 Answer:
_____ is a heat treatment that destroys all pathogenic
microorganisms in a food, but does not destroy all spoilage
microorganisms.
a. Homogenization
b. Ultrahigh-temperature pasteurization
c. Blanching
d. Pasteurization
10 Answer:
Which of the following is NOT a method of food preservation?
a. canning c. freezing
b. storing d. irradiating
11 Answer:
Graphs that plot microbes killed against time at a particular
temperature are called _____.
12 Answer:
Because foods that undergo _____, the complete destruction of all
microorganisms, also undergo significant physical changes, most are
treated only to the point of commerical sterilization, which leaves
some bacterial spores.
13 Answer:
_____ is the process that creates pickles from cucumbers,
sauerkraut from cabbage, and wine from grape juice.
Answers
2. True
3. true
4.false
5. false
6. d= heat processing
7. c= brine
8. A = drip
9. d= pasteurization
10. b= storing
11. Thermal death time
12. sterilization
13. fermentation
What is food sterilization?
Sterilization is the complete destruction or elimination of all viable organisms in a food or any food product.
The method found to be most effective for the sterilization of packaged foods is heat disinfection. This method involves heating the food and its containers up to temperatures that eliminate any microorganisms that may damage the foods.
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Which example is a scientific question that could be used to start a scientific
investigation?
A. What is the most devastating effect of a forest fire?
B. Are forest fires as frightening as mudslides?
C. Should there be more services to prevent forest fires?
D. Do long droughts increase the likelihood of forest fires?
SUBMIT
Answers
"Do long droughts increase the likelihood of forest fires? "could be used to start a scientific investigation.
What is scientific investigation ?Scientific investigation can be defined as a step by step process which involve in different steps and investigation occur to find out the answer of a scientific question by using scientific method.
There are basic steps of Scientific Investigation such as
Making Observation the first step of the scientific investigation which involve in the observation of the process like inspection, the investigation by asking questions.
Asking Questions which is the second step is the make sure the known data and make a query which can be solved quickly by asking question may be theory or the topic.
Hypothesis making involves proper explanation of the query from observation and the scientific investigation can come from a phenomenon.
finally the conclusion part refers to the information drawn out final step will be proper scientific or a mathematical statement.
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Answer:
do long droughts increase the likelihood of a forest fire
Explanation:
At one time, several kinds of camels lived in Florida. The evidence comes from fossils found in Florida. Which object would be a fossil that shows that camels once lived in Florida? Why?
A. a sinkhole formed by a retreating glacier
B. sedimentary rock that formed a long time ago
C. a crystal formation suspended from the ceiling of a cave
D. remains of an organism preserved by geologic processes
Answers
Answer:
d
Explanation:
fossils are remains of an organism preserved by geologic processes
HELP ME OUT PLEASE!!!!
How can light waves from the sun be converted to electricity?
O through a hydroelectric dam
O through the process of fission
O through an electric heater
O through a solar cell
Answers
Answer:
Through a solar cell
hope this helps! :D
Answer: through a solar cell
Explanation: took the k-12 test
A(n)
is a pure substance that cannot be broken
down into other substances.
Answers
A(n) is a pure substance that cannot be broken down into other substances element.
An element is a pure substance that cannot undergo a chemical reaction to transform into another substance. Atoms are a substance's building blocks, making it an element. One thing unites these atoms: they all share the same atomic number, which is the sum of the protons in each atom's nucleus.An interaction between two or more compounds to create one or more new substances is known as a chemical reaction. Reactants are the substances that participate in a chemical reaction, while products are the compounds that are created during a chemical reaction.To know more about pure substance visit:
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What are some positive effects of using steroids ?
Answers
Can be used to treat certain conditions
Helps with redness and swelling
Use the correct terms to complete the statement about transcription.
Answers: (Golgi apparatus , nucleus , ribosomes , rough ER)
During transcription, a strand of mRNA is made based on the DNA template in the___________
The mRNA then leaves the nucleus and binds to
or in the _________ found on the _______ or in the cytoplasm. Ribosomes translate the mRNA message into proteins, which may enter
to be the ER to be modified. Proteins move to the____________processed and are then delivered to other locations in the cell or stored for later use.
Answers
During transcription, a strand of mRNA is made based on the DNA template in the nucleus.
The mRNA then leaves the nucleus and binds in the ribosomes found on the rough ER or in the cytoplasm.Ribosomes translate the mRNA message into proteins, which may enter to be the ER to be modified. Proteins move to the Golgi apparatus processed and are then delivered to other locations in the cell or stored for later use.How the strand of mRNA is copied based on the DNA template in the nucleus.For transcription to occur, there is this special enzyme known as RNA polymerase II which usually, frequently and most of the time initiate the sequence in the DNA strand; thereby, resulting in the production of the DNA template into mRNA. The whole of this process occurs in the nucleus.
In conclusion, a strand of mRNA is copied to mRNA based on the DNA template in the nucleus.
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During an experiment, you make an observation that the chemicals in a test tube went from clear and colorless to purple. What type of data is this?
A.Quantitative
B.Qualitative
Answers
The observation that the chemical in a test tube went from clear and colourless to purple, it shows that the data is B.Qualitative type.
Qualitative data is the descriptive and conceptual findings amassed thru questionnaires, interviews, or observation. reading qualitative statistics lets us discover thoughts and further give an explanation for quantitative effects. Qualitative statistics describe traits or characteristics. it's miles accrued using questionnaires, interviews, or remarks, and frequently appears in the narrative shape.
Quantitative facts are facts about numeric variables. Quantitative information refers to any information that may be quantified, counted, or measured, and given a numerical cost. Qualitative facts are descriptive in nature, expressed in phrases of language as opposed to numerical values.
Quantitative studies deal with numbers and data, whilst qualitative studies deal with words and meanings. Quantitative methods can help systematically degree variables and check hypotheses. Qualitative techniques allow you to discover concepts and reviews in greater elements.
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Choose the reason(s) why plants need fertilizer. (There may be more than one answer.)
To provide oxygen
To provide nitrogen for proteins
To provide carbon dioxide
To provide various minerals
To provide protein for plant growth
Answers
Answer:
Explanation:Fertilizers are food for plants.Plants get carbondioxide from air and release oxygen.They are added to the soil to make up the deficiency of essential elements like nitrogen,phosphorus and potassium required for the proper growth of plants.
how did scientists change society's view of smoking after 1960
Answers
Answer: They proved it causes cancer,
Explanation:
There was a change in the view on smoking after 1960. change was influenced by declaring tobacco as an addiction and that it can cause cancer. It started in the 1964.
Answer:
Explanation:
The major cause of the change that society had on its view on smoking since 1960 was because of scientific information wherein scientists found that smoking causes cancer.
Ever since scientists discovered that smoking is bad for the lungs and the body in general, over time there became fewer and less people who do it. The smoke of cigarettes contains around 70 chemicals called carcinogens. These are known to cause cancer. So, society has changed its view on smoking since 1960.
1. What is a dendrite?
A) It is a cell that sends signals to the central nervous system based on sensory input.
B) It is the part of a neuron that carries information to the cell body.
C) It is a cell that sends signals to the body to move.
D) It is the part of the neuron that carries information away from the cell body.
2. What is the term for changes in the internal or external environment that cause a response?
A) stimuli
B) signals
C) nerves
D) messages
3. How do signals move from a sensory neuron toward the brain?
A) The signal is sent through the part of the neuron that is in contact with the spinal cord.
B) Signals move from dendrite to dendrite towards the brain.
C) Interneurons help signals move from one neuron to another toward the spinal cord.
D) Motor neurons signal for the body to move the signal toward the brain.
4. What part of the nervous system is very well protected by bone?
A) central nervous system
B) interneurons
C) peripheral nervous system
D) sensory neurons
5. You see a mosquito land on your hand and swat at it. A signal passes through many parts of different neurons to make this happen. Which component of the nervous system is the last to be involved in this process?
A) dendrites in sensory neurons
B) axons in motor neurons
C) dendrites in motor neurons
D) axons in sensory neurons
Answers
Answer:
The definition of dendrite: a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
For 1, the answer should be B, as it is a part of the neuron and spreads information throughout the body.
For 2, the answer is A: stimuli.
For 3, the answer is C: Interneurons help signals move from one neuron to another toward the spinal cord
Answer
dendrite is the special immune cell that is found all round your body( it means on ur tissues ) and it is responsible for the movement of information in our body to our nervous system so is means it involve cell
the function is to receive message from our brain not to send
Explanation:
so the only answer for ur question is
b) it is a neuron that carries information to the cell body
the cell body means for example a tire
i think it help u
Megha fractured her leg while playing. Doctor plastered her leg and advised her to take calcium tablets and milk regularly. He also asked her to get plenty of sunlight. Why did the doctor asked Megha to take calcium tablets? Why did the doctor ask Megha to get plenty of sunlight?
Answers
The doctor informed her that because the bones in her legs tend to deteriorate and fracture, she should take calcium and vitamin D supplements to strengthen her bones.
A shattered bone occurs frequently. The bone can repair itself given enough time and the appropriate care. To keep the arm or leg fracture in place while the bone heals, a plaster cast is put. You are urged to visit a doctor the following day to ensure the plaster is fitted appropriately once it has been put.
Plaster casts typically are worn for six weeks. Depending on your age, general health, and the type of fracture, this period may be either longer or shorter. X-rays are taken throughout this time to make sure the bone is mending properly. You might be sent to an orthopedic surgeon if there are issues with the type of fracture or the manner the fracture is healing (bone doctor).
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