which is NOT an example of how an ecosystem can change suddenly?

Answer:

A, They break down dead organisms and add nutrients back to the soil that plants use.

Explanation:

Decomposers do do this, and they don't do the other two options so this would be the best option. Hope this helped :)

Answer:

Both physical and chemical properties play a crucial role in identifying unknown matter. Here's how they work together:

Physical Properties:

Easy to Observe: These properties can be observed without changing the matter's composition. Examples include color, texture, density, melting point, boiling point, and electrical conductivity.

Initial Screening: By observing physical properties, you can narrow down the possibilities. For instance, a shiny, yellow metal with a high melting point suggests gold, while a white, powdery substance with a low melting point could be sugar.

Chemical Properties:

Deeper Identification: Chemical properties describe how a substance reacts with other materials. Observing these requires a controlled experiment that changes the substance's composition. Examples include flammability, reactivity with acids, and the production of specific gases during a reaction.

Confirmation: By testing a substance's reactivity, you can confirm your initial suspicions based on physical properties. If the unknown metal reacts with sulfur to form a black sulfide, it strengthens the possibility of it being silver.

Together is Better:

Combined Approach: Using both physical and chemical properties provides a more robust identification process. For instance, if an unknown liquid is colorless, boils around 100°C, and extinguishes a flame, these combined properties strongly suggest it's water.

In conclusion, physical properties offer a starting point for identification, while chemical properties provide a more definitive confirmation. By considering both, scientists can effectively identify unknown substances.

Explanation:

Physical properties describe appearance and behavior, while chemical properties detail how substances react, aiding in matter identification.

Identifying matter involves observing and understanding its physical and chemical properties. Here's how these properties aid in identification:

Step 1: Observation:

Begin by observing the characteristics of the substance. Physical properties are those that can be observed or measured without changing the substance's chemical composition. Examples include color, density, melting point, boiling point, odor, and conductivity.

Step 2: Physical Properties:

Physical properties provide clues about the substance's composition and behavior under various conditions. For instance, the color and appearance of a substance can help differentiate it from others. The density helps determine its mass per unit volume, while the melting and boiling points indicate its thermal stability.

Step 3: Chemical Properties:

Chemical properties describe how a substance interacts with other substances and undergoes chemical changes. These properties include reactivity, combustibility, acidity, and the ability to undergo specific reactions. For example, if a substance reacts with acid to produce gas, it indicates a specific chemical property.

Step 4: Comparison and Analysis:

By comparing the observed physical and chemical properties of an unknown substance with known properties of various materials, scientists can narrow down the possibilities and identify the substance. This process involves using databases, reference materials, and experimental data to match the observed properties.

Step 5: Verification:

Once a potential identification is made based on observed properties, further testing and analysis may be conducted to confirm the identification. This may involve performing additional chemical reactions, spectroscopic analysis, or other specialized tests to validate the initial assessment.

Step 6: Conclusion:

Based on the comprehensive analysis of physical and chemical properties, a conclusive identification of the matter can be made. This identification aids in understanding its properties, behavior, and potential uses in various applications.

Answer:

An esuarie is the tidal mouth of a large river, where the tide meets the stream.

An estuary may be defined as a type of ecotone that illustrates a transitional zone of the freshwater river ecosystem and marine water ocean ecosystem.

An ecotone may be defined as a type of transitional zone where two ecosystems meet with each other. In a more simple sense, it is defined as the zone between to ecosystems.

In an ecotone, characteristics of both ecosystems are present, hence ecotone has high biodiversity as compared to both ecosystems. It is known as the edge effect.

When we talk about an estuary, it is an ecotone that comprises two ecosystems like a river and an ocean ecosystem. The water of the river is fresh while the ocean is salty.

Therefore, an estuary may be defined as a type of ecotone that illustrates a transitional zone of the freshwater river ecosystem and marine water ocean ecosystem.

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Answer:

Space is a vacuum thus you wouldn't be able to hear any noise.

Answer:

Hi there

Erosion is responsible for the formation of glaciers

Hope it will help you

Explanation:

erosion is responsible for formation of glaciers

Answer:

-56

Explanation:

ax^2 + bx + c = 0 is the discriminant of the quadratic equation

3 - 4x= -6x^2

to

-6x^2 + 4x -3 = 0

We know that:

a = -6

b = 4

c = -3

Substitute in the formula of discriminant (b^2 - 4ac):

= 4^2 - 4 * (-6) * (-3)

= 16 - 4 * 18

= -56

Answer:

D

Explanation:

The answer is D, even though they also need a host cell to reproduce that is not mentioned in the table so the answer is D.

The data support classifying viruses as nonliving because they do not take in nutrients, lack independent metabolic processes, and cannot grow or develop independently. Option D is correct,

Answer:

Explanation:

Frogs begin their lives in the water as eggs and then tadpoles and when they are fully developed they live on land.

Frogs are said to have “two lives” because they undergo a complete metamorphosis, meaning that they change form completely from one stage of life to another.

In their early life, frogs are called tadpoles. Tadpoles live in water and have gills for breathing. They eat algae and other small organisms. As they grow, tadpoles develop legs and lungs. They also lose their gills and become able to breathe air.

When tadpoles are fully grown, they metamorphose into frogs. Frogs live on land and have lungs for breathing. They eat insects and other small animals. The change from tadpole to frog is a dramatic one, and it is why frogs are said to have “two lives.”

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Answer:The carbon cycle plays a key role in regulating Earth's global temperature and climate by controlling the amount of carbon dioxide in the atmosphere. The greenhouse effect itself is a naturally occurring phenomenon that makes Earth warm enough for life to exist.

Explanation:

Carbon can be stored in various reservoirs for long periods as part of the carbon cycle, including the atmosphere, oceans, sediment, soil, rocks, and Earth's interior. It can potentially have adverse effects on ecosystems when it enters the atmosphere as CO2.

The carbon once it ends up in a reservoir can be stored for long periods as part of the carbon cycle. Carbon reservoirs include the atmosphere, bodies of liquid water (mostly oceans), ocean sediment, soil, rocks (including fossil fuels), and Earth's interior. Carbon can enter the atmosphere again as CO2, which can potentially have adverse effects on ecosystems.

I'd say these requirements are best described as reactants.

Plants require moisture, oxygen, carbon dioxide, light, and minerals for growth. These requirements are best described as Abiotic components.

An abiotic factor is defined as the non-living part of an ecosystem that shapes its environment whereas in a terrestrial ecosystem, examples may include temperature, light and water and in a marine ecosystem, abiotic factors would include salinity and ocean currents.

A certain plant needs moisture, oxygen, carbon dioxide, light and minerals to survive which are abiotic components. Abiotic and biotic factors work together to create a unique ecosystem.

Thus, Plants require moisture, oxygen, carbon dioxide, light, and minerals for growth. These requirements are best described as Abiotic components.

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Answer: DNA replication is important because it creates a second copy of DNA that must go into one of the two daughter cells when a cell divides. Without replication, each cell lacks enough genetic material to provide instructions for creating proteins essential for bodily function. DNA is generally tightly packed into a structure called chromatin.

Explanation:

It is important for DNA to be duplicated exactly before a cell divides because one copy of DNA transfers into the nucleus of the daughter cell.

DNA duplication is also known as DNA replication. A double-stranded DNA molecule is copied to create two identical DNA molecules through the process of DNA replication.

Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process. All living things replicate their DNA, which is the primary mechanism for biological heredity.

Thus, it is important for DNA to be duplicated exactly before a cell divides because one copy of DNA transfers into the nucleus of the daughter cell.

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Answer:

fungus is the answer

Explanation:

it decomposes

Answer: A we are half way to the center of the milky way

Explanation:

we are in the oron arm in the milky way and that is half way through the galaxy

Answer:

Environmental factors and climate conditions affect the growth and how fast they grow.

Explanation:

An echinoderm is an organism (all marine) that has a spiny skin. The word "echinoderm" means "spiny skin." Starfish, sea cucumbers, brittle stars, and sea urchins are examples.

Most echinoderms develop from larvae to adolescent echinoderms by direct, or indirect development. In direct development, the fertilized egg is able to enter juvenile stage without becoming a larva. The juveniles stay close to the parent, and are cared for and looked after.

Echinoderms evolved from animals with bilateral symmetry. Although adult echinoderms possess pentaradial, or five-sided, symmetry, echinoderm larvae are ciliated, free-swimming organisms that organize in bilateral symmetry which makes them look like embryonic chordates.

Echinoderms have adapted to match the colour of their surroundings. Also, to protect and structure their bodies, Echinoderms such as sea urchins have interlocking plates of Calcium Carbonate which form a very hard internal skeleton.

Answer:

c. electromagnetic wave

**Explanation**

electromagnetic waves are waves that have an electric and magnetic nature and are capable of traveling through a vacuum. Electromagnetic waves do not require a medium in order to transport their energy. Mechanical waves are waves that require a medium in order to transport their energy from one location to another.

✌️;)

Answer:

first is narsacisstic

second lovely

3 is boastful

Answer:

(3) Rusting of almirah is a chemical change since during rusting, a new chemical compound called hydrated iron oxide (rust) is formed. ... (7) Making a fruit salad with raw fruits is a physical change since there is no change in the chemical properties of the fruits but only the physical appearance has changed.

Explanation:

I just got it right on my test

Answer: False; a physical change

Explanation: A chemical change would be for instance if you add a fire and change its chemical property. So this would be a physical change because only its physically appearance has changed.

Answer:

It would help the zookeeper in their breeding program so as not to interbreed the four different species, but rather to breed each species seperately, so as to keep the giraffe as a whole from population pollution by producing hybrids that do not have much conservation values.

Knowing that giraffes are four distinct species could change the approach of conservationists and zookeepers who work with giraffes by requiring different conservation strategies and breeding programs for each species.

Giraffes are now recognized as four distinct species: the southern giraffe, the Masai giraffe, the reticulated giraffe, and the northern giraffe.

This new understanding of giraffes as separate species could change the approach of conservationists and zookeepers who work with giraffes by requiring different conservation strategies and breeding programs for each species.

Conservationists and zookeepers would need to consider the specific habitat requirements, feeding preferences, and social behaviors of each species in order to effectively protect and care for them.

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Answer:

Vertebrae

Explanation:

Your back can't be a solid bone because you wouldn't be able to pick things up off the ground, or twist around to see things.

Answer:

Vertebrae

Explanation:

Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx.

Answer:

a thermometer

Explanation:

The apparatus that will help Jill to monitor the temperature change of the reaction would be a thermometer.

A thermometer is an instrument used in the measurement of temperature or temperature gradients across two regions.

A typical thermometer consists of 2 elements, namely;

As the sensor responds to changes in temperature, the magnitude of change is indicated on the scale and this magnitude is what is recorded as the temperature of a body of a system.

Answer:

TAACGGCATTGGCTA

Explanation:

T-A

G-C

Answer:

The water cycle uses plants for uptake of water and transpiration from the surface, so that water can be sent to the atmosphere. Carbon cycle uses plants for uptake of CO2, by which it is removed from the atmosphere

Explanation:

The carbon and water cycles are similar as they involve movement and transformation of substances in different reservoirs. Both play crucial roles in maintaining life on Earth.

The carbon cycle and the water cycle are similar in several ways:

Overall, the carbon cycle and the water cycle are interconnected processes that involve the movement and transformation of substances on Earth.

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Answer:

i think it would be option B

hope this helps

Light-colored moths were selected for on light-colored trees best describes the process that produced one of the ending populations of moths. Hence option D is correct.

Natural selection is a process by which certain traits or characteristics become more or less common in a population over time, based on their ability to help organisms survive and reproduce in their environment.

This statement refers to the classic example of natural selection in peppered moths, which were studied during the Industrial Revolution in England.

Before industrialization, the majority of peppered moths had light-colored wings, which provided camouflage on light-colored tree trunks, where they would rest during the day.

However, as industrialization caused pollution to darken the tree trunks, dark-colored moths became more visible to predators, while light-colored moths became better camouflaged.

As a result, the light-colored moths were more likely to survive and reproduce on light-colored trees, passing on their light-winged trait to their offspring.

Therefore, option D is the best statement that describes the process that produced one of the ending populations of moths.

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I am pretty sure that the answer is B.

Answer:

There are some similarities present between human body and car.

Explanation:

In human body, mechanical work is done with the help of energy while the car moves when energy is present in it. Human body gets energy by eating food while the car gets energy from the burning of fossil fuels such as petrol, diesel and CNG etc. Both human and car used organic compounds for the generation of energy. In human body, movement occurs through legs while in cars wheels used for movement from place to place. In human body, stomach produces energy while in cars, engine generates energy.

Answer:

Radiation

Explanation:

emission of energy as electromagnetic waves or as moving subatomic particles.

have a good day

-Hops