Why was "spontaneous generation" a theory and not a scientific law?
a. A theory that is disproved cannot become a law.
b. A theory is based on the most current experimental data and may change as new
technology and discoveries are made.
A theory must be tested for many years before becoming a law.
d. A theory applies to phenomenon of living things and laws apply to non-living.
c.

Answers

Answer 1

Answer:

Why was the theory of spontaneous generation a hindrance to the development of the field of micrbiology? Spontaneous generation, proposed by Aristotle, was believed for 2000 years. ... Although his experiment showed no spontaneous generation it was said that his sealed vials did not allow air for organisms to thrive.

Explanation:


Related Questions

I need help with dis too plz?

Answers

Answer:

DNA-RNA-MRNA

Explanation:

DNA,RNA,mRNA
hope this is helpful

I need help with dis there is two parts to it Bc there are graphs

Answers

Answer: its in the center

Explanation:

Explain how damaged DNA in a stem cell could cause a large impact to an organism

Answers

DNA damage can affect normal cell replicative function and impact rates of apoptosis (programmed cell death, often referred to as 'cellular senescence'). Alternatively, damage to genetic material can result in impaired cellular function, cell loss, or the transformation of healthy cells to cancers.

I need help with dis plz

Answers

Answer:

prophase

Explanation:

prophase is the correct answer

Prophase would be correct

5
Drag each label to the correct location.
Classify the natural resources as renewable or nonrenewable.
solar energy
minerals
animals
Renewable
Nonrenewable
coal

Answers

Answer:

Renewable:

- solar energy

- animals

Nonrenewable:

- coal

- minerals

Explanation:

Hope this helps :)

Answer:

Renewable:

- solar energy

- animals

Nonrenewable:

- coal

- minerals

Explanation:

What does RNA have that DNA does not ?

Answers

Answer:

The major difference between DNA and RNA is that DNA is double-stranded and RNA is single-stranded. DNA is responsible for genetic information transmission, whereas RNA transmits genetic codes that are necessary for protein creation. DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.

Have a great day friend! :D

Answer:

RNA uses predominantly uracil instead of thymine present in DNA.

Explanation:

That’s what RNA has that DNA doesn’t.

Where has the population reached the carrying capacity in the graph shown
above?
A. Point A
B. Point D
C. Point B
D. Point C

Answers

Answer: the correct answer is D

Explanation:Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively.  For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.

In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.

What happened to most freedmen after the Civil War?
A. They got jobs in the new tobacco factories.
B.They received 40 acres and a mule to begin their own farms.
C.They got jobs working on the railroad.
D.They rented farmland from white landowners.

Answers

Answer:

D. They rented farmland from white landowners.

Explanation:

Answer:

They rented farmland from white landowners.

Explanation:

I took the test

From the THREE LAWS OF MOTION, choose 1 law then state the law and give an example.

Answers

Answer: The first low of motion states that an object at rest remains at rest and an object in motion remains in motion unless acted on by an unbalanced force. This is also knows as the law of inertia. One example of this is a ball. A ball stays put unless you push in which case it keeps on moving. However, it stops because of the force known as friction.

Would appreciate brainly <3

Answer:

Newton's first law of motion states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless acted upon by what we call an unbalanced force

Explanation:

For example, my cup of coffee is resting on my kitchen table as I make this lesson. The force of gravity pulling down is balanced by the force of my kitchen table pushing up on my cup of coffee. Now, if I am to move my coffee, I must apply an external force to disrupt the balance. Thank goodness my muscles are strong enough to apply such a force so I can enjoy my cup of coffee. Ah, now that's good joe! Newton's first law of motion is also referred to as the law of inertia

how can a cell corret the DNA if there is a mutation?​

Answers

Answer:

if there is a mutation in genetic material then cell cannot correct it

True or False: Because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny.

Answers

The statement 'because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny' is TRUE. It is natural selection in action.

According to the evolutionary theory proposed by Darwin, natural selection is the mechanism by which species change (evolve) to adapt to particular environmental conditions.

In this case, the microbiome represents an evolutionary adaptive mechanism, thereby natural selection will tend to favor individuals that have a beneficial microbiome.

In consequence, individuals having a beneficial microbiome will have more chances to reproduce and survive (i.e., they have higher adaptive fitness), thereby they also have more chances to pass this adaptive trait to the next generation.

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how can natural disasters hurt the balance between biotic and abiotic elements??? I need an answer soon pleaseeeee!!! I know how it would affect the biotic and abiotic elements but the balance?!?

Answers

Answer:

Earthquakes, landslides, volcanic eruptions and natural bush fires all affect the many different ecosystems on our planet. Initially, these disasters negatively affect the biodiversity of wetlands, forests and coastal systems by causing the spread of invasive species, mass species mortality and loss of habitat.

someone to differentiate the 7 Baltimore classification from one another​

Answers

Answer:

youbot girl or boy

Which equation shows how matter is transformed and conserved in photosynthesis? In other words, which is the balanced chemical equation for
photosynthesis?
O 602 + 6H2O + Sunlight → CH208 + 6CO2
O 6CO2 + 6H2O + Sunlight → CH,20g + 602
O CH120o + 6CO2 → 602 + 6H20 + Sunlight
son
CH,208 + 602 → 6CO2 + 6H2O + ATP

Answers

Answer:

B

Explanation:

The reactants of photosynthesis are CO2 and H2O and the products are C6H12O2 and O2

the answer is not exact, but it is the closest to the actual equation

The equation shows how matter is transformed and conserved in photosynthesis is O 6CO2 + 6H2O + Sunlight → CH,20g + 602. Thus, option B is correct.

What is photosynthesis?

Photosynthesis can be described as a process which plants use to produce their own food. In this process, carbon dioxide and water get converted into sugar (glucose) and oxygen. Light energy from the sun is needed for this reaction to occur. The excess oxygen produced by this process is released into the atmosphere. The sugar made is used as fuel by the plant.

Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules. Cellular respiration can occur in the presence of oxygen (aerobic) and this combines glucose molecule to form carbon dioxide (CO2) and water (H2O) and release energy for use.

The equation best models cellular respiration is: C6H12O6 + 602 = 6H20 + 6CO2 + Energy (ATP). The reactants of photosynthesis are CO2 and H2O and the products are C6H12O2 and O2.

Thus, option B is the correct option.

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4. What steps of the water cycle cause rainy weather conditions? Use the terms
evaporation, condensation, saturation, and precipitation in your explanation. (10
points)

Answers

In water cycle, liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.

What are the characteristics of water cycle?

The water cycle, also known as the hydrologic cycle or the hydrological cycle, is a biogeochemical cycle that describes the continuous movement of water on, above and below the surface of the Earth.

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds.

The water cycle consists of three major processes: evaporation, condensation, and precipitation. Evaporation is the process of a liquid's surface changing to a gas. In the water cycle, liquid water evaporates and becomes water vapor.

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si es imposibles escapar de un agujero negro

hasta donde podrias acercarte para aprovechar la aceleracion de su gravedad?

Answers

English Version:

Viewing it from the safe distance of 230 million light-years, the astronomers say in the paper published in The Astrophysical Journal, that this fact makes it seem as though the supermassive black hole has been disturbed. The reason for this is unknown, though there are guesses.

Spanish Version:

Viéndolo desde la distancia segura de 230 millones de años luz, los astrónomos dicen en el artículo publicado en The Astrophysical Journal, que este hecho hace que parezca que el agujero negro supermasivo ha sido perturbado. Se desconoce la razón de esto, aunque hay conjeturas.

Hopefully, this helped!

¡Con suerte, esto ayudó!

Heat can be caused by
A. a decrease in friction
B. an increase in friction
C. friction remaining at zero

Answers

Answer:

B. an increase in friction

Explanation:

Answer:

B an increase of friction

Explanation:

Rub your hands together and you will probably feel it warm up a little, that's the friction.

What effect would the removal of a nucleotide have on the protein?

Answers

For instance, if just one nucleotide is deleted from the sequence, then all of the codons including and after the mutation will have a disrupted reading frame. This can result in the incorporation of many incorrect amino acids into the protein.

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Variation in offspring is important in maintaining genetic diversity within a population . Which of the answer choices indicates a mechanism of introducing genetic variation in a population? Select all that apply.
A crossing over during meiosis B ) fertilization of an egg by a sperm
C) independent assortment during meiosis
D) mitosis producing two new daughter cells
E) binary fission resulting in two bacterial daughter cells

Answers

Answer:

A B and C

Explanation:

Crossing over breaks, exchanges and rejoins chromosomes at corresponding points so introduces genetic variation. Because of crossing over offspring has characters of both parents.

Also independent assortment means that during separation of the chromosomes in anaphase, any chromosome can pair up with another. So for example if we have one parent plant with yellow and wrinkled seeds and other one with green and round seeds, then the gene responsible for round seed can pair up with either of the genes responsible for yellow seeds or green seeds. Hence the characters of offspring differ from the parents, it can have yellow round seeds or yellow wrinkled seeds and so on.

Mitosis will only produce 2 daughter cells which are exactly like their parent cells and are also identical to each other. Binary fission is a form of Asexual reproduction so it does not involve shuffling of genes from 2 parents.

Because of fertilization of egg with a sperm the maternal genes and paternal genes mix together. So it also produces genetic variations.

An individual has the genotype tt. He marries a woman who can taste PTC paper. They have 2 kids - one who can taste and one who can't. Based upon this information, what can you say about the mother's genotype?

Answers

Answer:2

Explanation:

26

Indicater I need the meaning

Answers

Answer:

indicator can mean two different things,

1. a thing, especially a trend or fact, that indicates the state or level of something.

2. a gauge or meter of a specified kind.

Hope this heled!

What are fontanels?

Answers

Answer:

a space between the bones of the skull in an infant or fetus, where ossification is not complete and the sutures not fully formed. The main one is between the frontal and parietal bones.

PLEASE HELP!! i’ll give brainlist and points.

Answers

Answer:

4 then 1 then 3 and finally 2

do it the easy way hope it helps

What is diabetes insipidus? How would the urine of someone with diabetes insipidus compare to that of someone with diabetes mellitus?
help plz​

Answers

Answer:

In diabetes mellitus, the level of glucose in your blood, also called blood sugar, is too high. Your kidneys try to remove the extra glucose by passing it in your urine. In diabetes insipidus, your blood glucose levels are normal, but your kidneys can't properly concentrate urine.

Explanation:

Explanation:

 In diabetes insipidus, your blood glucose levels are normal, but your kidneys can't properly concentrate urine.

Tundra has mostly mosses, lichens, and grasses. What abiotic factors prevent other vegetation from growing in this biome?

Hot summers and cool winters; low rainfall

Cold winters, high precipitation, and lack of trees

Permanently frozen soil and low precipitation

High precipitation and little seasonal change

Answers

Answer:

C

Explanation:

i did the test

Tundra is located on the artic zone. Therefore, permanently frozen soil and low precipitation is the reason of hindered plant growth.

What is a biome?

A biome is an ecological unit that depicts the occurrence of a biological community in response to the particular climate and the environment.

Biomes support variety of habitats across the different continents. Various biomes together constitute a biosphere.

A biome is identified on the basis of temperature and precipitation it receives annually. The presence or existence of organisms is dependent on these two factors.

Based on topography, biomes can be classified into terrestrial, fresh water and marine biomes.

Some of the well known examples of biomes include tundra region, taiga region, grasslands, desserts and forests.

There are also special types of biomes known as ecotones where the two biomes merge. Salt marshes are the example of ecotone.

Thus, biome is the life supporting unit in ecology.

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4. What factors might affect bone strength?

Answers

Answer:

Bone strength is influenced by changes in the structure (size and shape) and composition [cortical (compact) bone, trabecular (sponge-like) bone, amount of cartilage] of the bone. 6 A high peak mass at a young age and the decrease of bone loss at a later age are two ways to reduce osteoporosis risk.

Explanation:

Answer:

Bone need enough Calcium

Explanation:

The amount of calcium in your diet. A diet low in calcium contributes to diminished bone density, early bone loss and an increased risk of fractures.

Physical activity. ...

Tobacco and alcohol use. ...

Sex. ...

Size. ...

Age. ...

Race and family history. ...

Hormone levels.

where did you get this information?

Answers

Answer:

a friend who helped me.sometimes I try answering the questions my self.also I get some answers from this place.

Which of the following materials is a good electrical conductor?

rubber


ceramic


plastic


copper

Answers

Answer:

copper

Explanation:

Copper has the best electrical conductivity of any metal, except silver. A good electrical conductivity is the same as a small electrical resistance. An electric current will flow through all metals, however they still have some resistance, meaning the current needs to be pushed (by a battery) in order to keep flowing.

Many industrialized countries exist in an ecological deficit due to their lack of productive land, overproduction of waste, or low freshwater supplies. Which scenario describes a way to create an ecological surplus for an industrialized country?

Import beef and soy products into the country

Export garbage and wastes to other countries

Change farming techniques to conserve soil

Allow unlimited freshwater resources for all

Answers

Answer: change farming techniques to conserve soil

Explanation:

The scenario that describes a way to create an ecological surplus for an industrialized country is the change farming techniques to conserve soil. The correct option is C.

What are farming techniques?

Farming technology, the system of practices used in crop production The goal of agricultural technique is to ensure high crop yield with minimal labor and capital investment per unit of realized product.

The circumstance that characterizes a manner for an industrialized country to generate an ecological excess is changing farming techniques to conserve soil.

Thus, C is the correct answer.

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air is made of ____and ____​

Answers

Answer:

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

Answer:

air is made of nitrogen and oxygen

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