What hypothesis did Pasteur’s experiment test?

Answers

Answer 1

Answer:

Where do the microbes come from to cause broth to decay. Hypothesis: Microbes come from cells of organisms on dust particles in the air; not the air itself.


Related Questions

If the food source is affecting the buffalo population, what do you predict the graph of the food source would look like? Either draw a graph or write a prediction.

Answers

Answer:

If the food source increased the population would increase

Explanation:

what are the long strands of DNA called?

A.Chromosomes
B.Fossils
C.Genes
D.Mutations

Answers

The answer is chromosomes

Answer:

A

Explanation:

How does light behave?

Answers

When light moves from one medium (like air) to another medium (like water) it will change directions. This is a "wave-like" behavior and is called refraction. In this way light behaves like other waves such as sound waves.

Answer: Light behaves like waves, they undergo reflection, refraction and diffraction just like any other wave would.

Explanation:

Light waves move and change direction all the time. But how can we compare them? to all other waves because this behavior happens constantly.

Which statement about fossils could be used as evidence that
evolution by natural selection has been in effect for millions of
years?
Fossils found in higher layers of rock are older than those
found in lower layers.
Fossils found in lower layers of rock are more complex than
those found in higher layers.
© Fossils of current species have been found throughout rock
layers that are billions of years old.
0 Fossils of species that no longer exist but are ancestors of
current species have been found in rock layers.

Answers

D because they evolved into the special that are current now

Fossils of species that no longer exist but are ancestors of current species have been found in rock layers. Thus, the correct option is D.

What are Fossil fuels?

A fossil fuel is a hydrocarbon-containing material which is formed naturally in the Earth's crust from the remains of dead organisms such as plants and animals which are extracted and burned as a fuel. The main fossil fuels which are present in the earth's crust include coal, oil, and natural gas.

The evolution of species is easily confirmed by the presence of fossils of the most diverse species of the living beings in the world. This is because, fossils are the records of species which do not currently exist, however there are existed millions of years ago and are similar to the current species, being their ancestors.

Therefore, the correct option is D.

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Why we should be concerned about the increase in amount of the green house gases in the atmosphere?

Answers

Answer:

We should be concerned about the amount of green house gases released into the atmosphere because the more gases are released, the more they accumulate in the atmosphere and trap heat, which contributes to global warming, which is causing massive changes in our environment all around the world.

Which allele needs both of itself to show the phenotype

Answers

The answer is recessive
Recessive is the allele

Plants are predominantly autotrophic, with some hetertrophic exceptions.
OTrue
O False​

Answers

Answer:

True

Explanation:

Autotrophic means making your own food, providing it without consuming other organisms. Heterotrophic is the opposite: think of the prefixes auto- meaning self and hetero- meaning different.

Most plants use photosynthesis to get energy from the sun; that's their own source, no eating other organisms necessary. Examples are grasses, flowers, trees.. most mainstream plants. There are a few exceptions, like something nasty like a Venus flytrap.

PLEASE HELP NOW!!EXPLAIN Select the correct term to complete the statement about
agricultural runoff.


Agricultural runoff can affect the overall health of an ecosystem. In the
case of aquatic ecosystems, algae blooms, and the bacteria that break
down the dead algae, can deplete the ______
that fish and
other organisms need to survive. Fish-eating birds and other animals are
impacted because they rely on the fish for food.
A)oxygen
B) nitrogen
C) carbon

Answers

Answer:

oxygen

Explanation:

Arctic ice retreat is threatening many species in this ecosystem. Their resources are being cut and they are needing to find new ways to survive. Do you think in your lifetime you will see drastic effects to the species in this ecosystem and why? Will that affect other ecosystems?

Answers

Answer:

no

Explanation:because they will find new ways to survive in the environment

Answer:

We are already seeing drastic effects to the ecosystem and it's wide assortment of species. Animals such as polar bears, and seals are losing their breeding and hunting grounds. Polar bears in particular are losing their ways to catch seals for food and interbreeding with grizzly bears. Fish and whales from warmer parts of the world are starting to move up north and are becoming invasive. Most importantly, since cold water from the melting ice are mixing with ocean currents, global climates and weather systems are changing course. Ultimately, in about 500 years, there could be a large Global Climatic Shift that may put us into another Ice Age.

nervous/endocrine questions help pls!!

Answers

Answer:

Explanation:

1. A

2. B

3. IDK.

what is it called when an object changes from a liquid to a solid?

Answers

Answer:

it is either called freezing or solidification

Gregor Mendel crosses a true-breeding tall plants (TT) with a true-breeding short plant (tt). What are the predicted phenotypes for the offspring ?

a. all tall
b. all short
c. ratio of 1 tall : 1 short
d. ratio of 3 tall : 1 short

Answers

Answer:

a. all tall:

Explanation:

Tall plants (TT) are the more dominate trait. Use the Pundett square (I will try to recreate it as best as possible but it will not look good):

     t       t

T  Tt      Tt

T   Tt     Tt

As you can (kind of) tell, T appears on all offsprings, and as the dominate trait, it will take over 100% of the time.

The next generation (depending on who you are breeding them with), will have a different result.

~

How do limiting factors impact local ecosystems?



A)Limiting Factors prevent populations in ecosystems form growing any larger. If any of the limiting factors change, animal and plant populations change, too.


B)Limiting factors do not prevent populations in ecosystems from growing any larger. If any of the limiting factors change, animal and plant populations do not change, too.


C)Limiting factors can never impact ecosystems.


D)As biodiversity of an ecosystem increases, the ability to withstand environmental stress due to the loss of a single species or group also increases, improving the sustainability of the ecosystem.

Answers

Answer:

limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations. ... Sometimes a population will grow too large for the environment to support.

Explanation: a

Why should extra precautions against sun exposure be taken when boating?

Water cancels out most sunscreens.
UV rays are blocked over land, but not over water.
The heat of the water increases potential skin damage.
The water reflects UV rays, adding to exposure.

Answers

Answer:

the correct answer would be D the water reflects UV rays, adding to exposure

Explanation:

Answer:

the correct answer would be D the water reflects UV rays, adding to exposure

Explanation:

Explanation:

Describe one feature of Earth's atmosphere that allows life to thrive on its surface.

Answers

Answer:

Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. Our atmosphere contains water vapor which helps to moderate our daily temperatures. Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen.

Explanation:

The atmosphere support the life on Earth by creating and controlling weather and climate and by providing the gases that plants and animals need to breathe.

The technology in this picture produces which energy conversion?

Answers

Answer:

D

The reason that its d is because if theres a water generator in the dam then it requires the water to move the generator which converts it to electricity

What is the ozone layer?
Why is it important to humans?

Answers

Answer:

The ozone layer absorbs most of the Sun's ultraviolet radiation in the Earth's stratosphere.

Explanation:

It is important to humans because it protects us from getting sun burnt and from our body receiving too much radiation.

Answer:

it protects us from radiation from the sun

Line t passes through (4, 5) and is perpendicular to the line shown on the coordinate grid.

a coordinate plane with a line passing through two points at 0 comma 3 and 7 comma 2

What is the equation of line t in standard form?

x − 7y = −161
7x − y = 23
−7x − y = 23
x + 7y = 161

Answers

Answer:

it is b

Explanation:

The equation of line t is [tex]7x-y=23[/tex]

Equation of line :

Given that , A line passing through two points [tex](0,3),(7,2)[/tex]

Slope of line is,

                   [tex]m=\frac{2-3}{7-0}=-\frac{1}{7}[/tex]

Since, line [tex]t[/tex] and given line are perpendicular to each other.

Slope of line [tex]t[/tex] is, [tex]=7[/tex]

Equation of line [tex]t[/tex] is, [tex]y=7x+c[/tex]

Line [tex]t[/tex] passes through [tex](4, 5)[/tex]

Substitute point in equation of line [tex]t[/tex].

             [tex]5=28+c\\\\c=-23[/tex]

Equation of line [tex]t[/tex] become, [tex]y=7x-23[/tex]

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Which ones goes with organ,organ system, and tissue

Answers

organ = a structure made of two or more tissues that work together.

organ system = organs that work together.

tissue = a group of cells that work together.

Sorry I just need points lol

Science about osmosis and diffusion

Answers

If a living cell was placed in a sugar solution, it would cause outward osmosis to occur. The solution outside the cell would be hypotonic (containing fewer solute molecules than inside the cell). Water will move into the cell by inward osmosis and the cell would then swell.
a. 1. Cell membrane pulled away from the cell wall.
2. Vacuole shrined and became smaller

Hope this helped, plz mark as brainliest plzz

Which of the following depicts correct base-pairing in DNA?
A-G-A
B-A-U
C-C-T
D-T-A

Answers

Answer:

D. T- A

Explanation:

In dsDNA the bases in the two strands are paired through hydrogen bonds forming base pairs (bp). Adenine forms two H-bonds with thymine from opposite strand and vice-versa. Similarly, guanine is bonded with cytosine with three H-bonds. As a result, always a purine comes opposite to a pyrimidine.

A - T   &   G - C

when would you need to summarize and article

Answers

When you are copying from a direct source.
when copying from a direct source! :)

Physical characteristics include 3 pairs of legs and 3 body sections *
arachnids
insects
annelids
echinoderms

Answers

Answer:

The three main features of an arthropod's body are the _ or cuticle made of chitin; a series of paired, jointed _ , and segmented _ parts. A long organic molecule made of sugars, arranged in layers. Chitin.

Explanation:

Answer:

Which of the following equations are balanced correctly?

2Ag2O → 4Ag + O2

Zn + HCl → ZnCl2 + H2

Cu + H2O → CuO + H2

2C4H10 + 13O2 → 8CO2 + 10H2O

Explanation:

I need an answer for this ASAP. it’s number 6 7 8. 52 points to first person

Answers

8. Weather refers to short term changes in the atmosphere. Climate refers to what the weather is like for a long period of time.
7. Hailstorms, ice storms, thunderstorms, windstorms, tu rica es and tornadoes.
6 high air pressure experts a force on the surrounding low air pressure results in hire sea levers

Answer:

6. So high air pressure over a sea area corresponds to low sea level and conversely low air pressure (a depression) results in higher sea levels.

7. Thunderstorms, Tornadoes, Hurricanes, Winter storms

8. weather is short-term changes in the atmosphere and climate what the weather is like over a long period of time in a specific area.

Hope this is helpful!

Pls help me it’s EMERGENCY.........Answer the question correctly.

Answers

Answer:

why is it important

Healthy marine ecosystems are important for society since they provide services including food security, feed for livestock , raw materials for medicines, building materials from coral rock and sand, and natural defenses against hazards such as coastal erosion and inundation.

How does it effect humans:

Recreation, tourism and water transport are familiar services provided by many marine ecosystems. Some unique estuarine, coastal, and marine habitats are also important stores of genetic material and have educational and scientific research value as well.

(HELP) A region periodically experiences ample rainfall and ideal temperatures. If the
population also experiences little disease at that time, the region is most
likely to have a(n) ___.
a. decreasing food supply
b. decreasing population
c. increasing popularity
d. increasing carrying capacity

Answers

Answer:

b. decreasing population

there are many factors that can decrease the population such as disease and other negative aspects.

A new type of fish has been discovered. It has vibration receptors on its snout and virtually nonexistent eyes. Based on these characteristics, in which part of the ocean is this fish most likely found?

Answers

the bottom of the ocean

If a fish has vibration receptors on its snout and virtually nonexistent eyes, these characteristics are found in the fish which leaves at the bottom of the ocean.

What is the use of receptors on fish?

It is found under the skin, the lateral line made of sensory receptors known as neuromasts. While the cilia in the neuromasts vibrate, the fish can sense.

The lateral line may likewise feel and observe water pressure (depth), currents, objects, prey, and predator movements,  this senses increase the chance for the survival of the fish.

Food and lure that is living and moving would be simple for fish to detect as it has a smell, sound and vibration.

Therefore, with vibration receptors, at the bottom of the ocean, this kind of fish generally found.

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Which of the following are the major "reservoirs" of carbon in the environment?
Select one or more:
A. the Sun
B. natural habitats
C. the Earth's interior
D. the atmosphere
E. sediments
E the oceans
G. the human body

Answers

Answer:the atmosphere, the oceans, and sediments

Explanation:

D. G. E. Plz mark as brainliest plzz

Pheumonia is caused by_

Answers

Answer:

viral infections

Explanation:

Pneumonia is a lung disease characterized by inflammation of the airspaces in the lungs, most commonly due to an infection. Pneumonia may be caused by viral infections, bacterial infections, or fungi; less frequently by other causes. The most common bacterial type that causes pneumonia is Streptococcus pneumoniae.

Please Help with theses 3 questions. Extra points and brainiest will be given!!!!l

Answers

Answer:

1=True

2=false

3=natural gas car

Explanation:

pls give brainlist

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