Which sentence best describes an ecosystem?

Answer: thesis

Explanation: hypothesis

One elements is fire, and its recognized by its heat and light, another element is water, this element is recognized by how wet it feels and the sounds it makes.

So your answer would be that each element is recognized by how it:

Looks, Feels, Sounds, and how it acts.

Layer D is the correct answer

Based on the laws of superposition, assuming the sediment or rock is undisturbed the youngest rock would be at the top and the oldest rock would be located at the bottom.  If your'e unsure, you can look this up, the dictionary website is a great place to start.

Hope this helps :D

Based on the law of superposition, the layer of sedimentary rock that is the oldest is layer D. The correct option is D.

The Law of superposition states that two or more stimuli in a linear system result in a net stimulus that is equal to the total of the individual reactions. The resulting displacement at a point equals the total of the two vectors when two waves of the same amplitude are present there, according to the principle of superposition for waves.

According to the laws of superposition, the youngest rock would be at the top and the oldest rock would be at the bottom if the sediment or rock were undisturbed.

The weathering process, in which rocks are broken down into sand and clay particles by the wind, water, and ice, is how sedimentary rocks are created.

Therefore, the correct option is D. layer D.

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Answer:

Option (D)- which is fossil 4, as given in the image

Explanation:

From the law of superposition of rocks, it is known that the rock layer forming the bottom of an undisturbed sedimentary sequence are the oldest rocks because they those sediments were first deposited there and due to compaction and lithification it formed a rock layer, and subsequently new sediments are deposited on top of it. The rocks that are found to be present at the apex portion of a rock sequence signifies the youngest rocks, where the recent sediments are deposited.

So the fossils present in the bottom layers will be oldest and those fossils that are present on the top rock layers are the youngest.

Thus, the fossil sample number 4 (trilobites), as given in the image is the oldest fossil.

Hence, the correct answer is option (D), which is fossil 4.

Answer:

human activity

Explanation:

The wetlands and the coral reefs have gradually been destroyed by the humans and their activity. The wetlands were the first to be under the human influence and getting destroyed, while the coral reefs have come to have similar destiny in the last century. The reasons for the destruction are different. The wetlands have in general been destroyed on purpose, be it because they were epicenter of diseases, for making more land for agriculture, or making more land for settlements. The coral reefs have not been destroyed on purpose, but the human activity has resulted in lot of pollution of the ocean waters, as well as changes in the climate, and the fragile corals can not adapt quickly enough to these changes, so they die out quickly.

Answer:

A. Star

Explanation:

Answer:

C

Explanation:

Xylem only goes away from the roots and it transports the water and minerals that it absorbs

Xylem only goes away from the roots and it transports the water and minerals that it absorbs.

One of the two different kinds of transport tissue found in vascular plants—the other being phloem—is xylem. In addition to carrying water from the roots to the stems and leaves, xylem also carries nutrients.

Although it is present throughout a plant, the best-known xylem tissue is wood. The word "xylem" is derived from the Ancient Greek word "v" (xylon), which means "wood."

The lengthy tracheary components that carry water are the xylem cells that are most easily recognized. The shape of the two differentiates them; vessel parts are shorter and joined together to form long tubes that are known as vessels.

Therefore, Xylem only goes away from the roots and it transports the water and minerals that it absorbs.

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Answer:

C

Explanation:

Based on the photo, you can see the small seeds on the leaves.

Plants can have various structures for reproduction and can be classified based on their reproductive modes as well as some other features.

The plants will be classified into the group that produces spores on their leaves.

The plants are classified based on their transporting properties and reproductive methods. The plants that are capable of producing spores on their leaf structures are classified into the Pteridophyta.

Pteridophyta is also known as ferns and have a simple vascular system that contains tubes for the transport of fluids and food.

This type of plant lacks seeds and can not reproduce fruits and flowers instead they produce spores and are unique to them.

Therefore, option A is correct.

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Your answer is B. Euro

B. Euro

Austria is a member of the European Union (EU), which shares the same currency, the Euro. Plus, I know from experience. I’ve stayed in a hotel in Austria before.

Answer:

The function of rectum is to store the feces temporary before it is excreted out from the human body.

Explanation:

The end part of large intestine is called rectum and it is connected to the anus. The distal part of rectum is called ampulla and feces is stored here temporarily.  When stored feces increases its walls expand. There are receptors present in its wall that send a signal to the brain and feces is discharged out of the body.

The human rectum, as part of the digestive system, primarily serves as a storage area for feces until defecation. Feces are moved along by peristalsis and the exit of this waste material is regulated by two sphincters. Rectal valves present in the rectum help separate feces and gas.

The human rectum is the terminal end of the large intestine. The primary function of the rectum is to store feces until defecation occurs. During the elimination process, the feces are propelled using movements known as peristalsis. The exit point for this waste material is the anus, located at the far-end of the digestive tract. It's important to note that two sphincters regulate the exit of this waste material; the inner sphincter operates involuntarily, while the outer sphincter operates under voluntary control. Furthermore, the rectum has three lateral bends that form internal transverse folds, otherwise known as the rectal valves. These valves serve to separate feces from gas, preventing the simultaneous passage of both.

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A tick is a type of parasite.

Parasites will attach to humans or animals to live. The host (which is the human or animal the parasite attaches to) gets no benefits from the parasite. The host not getting benefits from the tick is what classifies it in the parasite group.

The answer would be parasite

Answer:

supernova

Explanation:

this can cause more stars to form

hope this helps :)

The answer would be letter B.

Answer: B.  runoff mixing with pesticides and debris

Explanation:

A non-point source pollution is the one which originates from many sources of origin but the source of their origin cannot be traced back to their origin. As a result of this, this kind of pollution cannot be controlled.

B.  runoff mixing with pesticides and debris is the correct option this is because of the fact that surface runoff (water) will take away pesticides and debris from their site of origin and discharge them to a water body or any other location. The source of these pesticides and debris cannot be traced back. Hence, it a type of non-point source pollution.    

Answer: B. predation

Explanation: The biological interaction in which one organism (the predator) hunts, kills, and eats another organism (the prey) for energy is known as predation.

B. They stop heat from escaping the atmosphere

Answer:

Bryophytes is the answer.

Answer:

The phylum is Bryophyta sensu lato or Bryophytes

Explanation:

These plants are characterized by having no conductive vessels, flowers or fruits. They are small plants that are found in humid or aquatic sites. Its reproduction is by spores. Its main characteristic is that they were the first plants that guaranteed the road to terrestrial life. These plants do not have specialized tissues or roots. They can live on logs, rocks, etc. Its leaves have a conductive nerve that use it to absorb water and mineral salts. An example is mosses and anthoceros.

I recommend you do the following:

After following those steps you wont have the same doubts and the experiment would have worked better.

Important notes:

Make sure that the temperature in both the fridge and outside will not change. If the temperature changes it might affect the experiment.

When opening a fridge it causes a temperature loss in the fridge, and that is not something we want. So, instead of putting one in the fridge, you can find another place in the house that is cooler than the place where the other banana is set.

Hope it helped,

BiologiaMagister

To make bananas ripen faster, place them near a heat source such as a hot plate or oven on a low setting, ensuring the temperature is controlled and not too high. A consistent elevated temperature accelerates the ripening chemical reactions and ethylene production within bananas.

To test the hypothesis that 'higher temperature will make bananas ripen faster,' you should place your bananas in an environment where the temperature is consistently higher than room temperature. One way to do this is by using a hot plate, an oven set to a low temperature, or an incandescent light bulb to gently warm the area around the bananas. These appliances can provide a steady source of heat. However, you must ensure the temperature is not too high, as excessive heat can cook or damage the bananas. You should also utilize a thermometer to regularly check that the environment is consistently at the desired temperature.

The increase in temperature would speed up the ripening process due to the acceleration of the chemical reactions inside the banana, as ripening involves numerous reactions including the production of ethylene gas which acts as a ripening agent. Remember, the ideal temperature for ripening bananas is slightly above room temperature, but below temperatures that would cook the fruit.

the answer is thrombocytes

Answer:

blood platelets (thrombocytes)

Explanation:

Megakaryocytes are one of the cells involved in the production process of the cellular elements that make up the blood, being located in the bone marrow, a place of intense hematopoietic activity. Megakaryocytes are giant polynucleated cells that give rise to blood platelets.

Platelets, also called thrombocytes, are involved in the clot formation process, a structure that blocks the cuts or ruptures that appear in blood vessels, preventing or blocking bleeding.

Answer: Cuvier

Explanation: Cuvier would be the correct answer plz mark brainliest have a nice day

Answer:

speciation

Explanation:

Answer:

D. Speciation

Explanation:

i did it on edg. quiz

Answer:

Forms the supporting stalk.

Explanation:

Answer:

may contain mercury

Explanation:

Especially for pregnant women, this is bad for people to consume, so many types of fish should only be consumed in small amounts.

Answer:

The given blank can be filled with comprises higher amount of  methylmercury.

Explanation:

Mercury refers to a mineral that prevails naturally in the surroundings. In supplementation, ample of tons gets discharged into the air every year via wastes and pollution. The methyl gets transformed into methylmercury, that is, the organic mercury compound, that is, a poisonous component.  

The fish one consumes unfortunately also comprises the toxin methylmercury. In the streams and oceans, methylmercury can get gather and can also get absorbed in the food chain, as all the fish captivates all the mercury of the organisms that they consume. Due to this, the largest and the oldest fish like sharks and swordfish comprises the highest ratio of methylmercury in them.  

Some of the fishes like swordfish, shark, tilefish, and king mackerel are unsafe to consume in larger quantity as they constitute a higher amount of toxin methylmercury.  

Answer:

I agree with her.

Explanation:

ATP definitely is the most widely used high energy molecule - especially for cells. But, it is not absolutely necessary for some "passive" cellular mechanics.  We can look at passive diffusion of cellular processes which may include; passive diffusion of water, or sugar molecular across a cellular membrane.

ATP is vital for energy-demanding cellular processes, like growth or movement, supporting its role as the 'energy currency for cells'. However, not every cellular process requires ATP. An example of this is passive transport, which typically functions along a concentration gradient, without the need for ATP.

I agree with Anna’s conclusion. While ATP (adenosine triphosphate) is vital for many cellular processes, it is not required for all. ATP is known as the energy currency for cells. This means it is essential for energy-demanding processes, which include growth, movement, and active transport among others. During these processes, ATP is broken down, and a phosphate group or two are detached, supplying energy to the cell.

However, some cellular processes are non-energy demanding or have different mechanisms for acquiring the energy necessary. For instance, passive transport of materials across cell membranes occurs along a concentration gradient and does not typically require ATP. Hence, while ATP is incredibly important, and many cellular functions would be impossible without it, Anna is correct in her conclusion that it is not a requirement for every single cellular process.

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a chemical landfill is where chemical waste is stored once it has been used

if it is secure it means that the waste cannot pollute the environment through water, air etc

Answer:

Plant D

Explanation:

The control group is the plant that receives no treatment by the researchers, and is used as a "growth marker" for the others.

Answer:

Plant D does not listen to any music at all.

Explanation:

Control group is a group in the experiment which does not receive any treatment. It is kept as a benchmark for comparision with other variables.

Plant D does not listen to any music at all is the correct option. As it is not treated with the experimental variable that is music.

Answer:names :1.tree(plant)

2.caterpillar

3.bird

Explanation:birds can be omnivores, herbivores.

Birds that eat both meat (mostly in the form of insects) and also eat plants in the form of fruits and berries etc are considered herbivores, the examplea of omnivores are chicken, Robins and ostriches

Birds that only eat fruits and berries etc are considered herbivores.

In the picture attached their is a Robin and feeding on a caterpillar,it is a omnivore.

The caterpillar in the picture is a herbivores as it feeds on leaves and plants

Consumers, or heterotrophs, are classified as herbivores, carnivores, or omnivores based on their diet. Examples include predators like lions, scavengers like vultures, and decomposers like fungi.

Consumers are organisms that depend on other organisms for food, and they are also known as heterotrophs. They can be classified into three main groups based on their diet:

Examples of different types of organisms include:

Answer:

Step 1: A tree absorbs the carbon from the atmosphere into its leaves for photosynthesis.

Step 2: A caterpillar gets the carbon by eating the tree's leaves.

Step 3: A bird gets the carbon by eating the caterpillar.

Step 4: The bird flies into a building and dies instantly. It falls to the ground.

Step 5: The bird decomposes and the carbon returns to the atmosphere.

Answer:

Two of the most important characteristics of seawater are temperature and salinity – together they control its density, which is the major factor governing the vertical movement of ocean waters. The temperature of seawater is fixed at the sea surface by heat exchange with the atmosphere.

Explanation:

The temperature of ocean water varies by location  both in terms of latitude and depth, due to variations in solar radiation and the physical properties of water.

The temperature of ocean water varies by location  both in terms of latitude and depth, due to variations in solar radiation and the physical properties of water.

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Answer:

They allow less blood to flow through the skin and conserve the core body temperature.

Explanation:

When blood vessels near the skin's surface constrict in cold weather, a process known as vasoconstriction, it helps conserve body heat by reducing heat loss. This physiological response is crucial for maintaining body temperature but can increase the risk of cold-related injuries such as frostbite, especially in extremities. Additionally, blood flow to the digestive system decreases as the body prioritizes heat preservation.

When cold weather causes blood vessels near the surface of the skin to constrict or become narrower, a process known as vasoconstriction, it significantly reduces blood flow close to the skin's surface. This reduction in blood flow serves an essential purpose: it minimizes heat loss from the body's surface. Through this mechanism, the body can conserve heat, especially around the vital organs, by redirecting blood flow away from the skin towards the core. This physiological response is crucial for maintaining body temperature in cold environments.

However, while this process is effective in preserving heat, it can also lead to some risks. Vasoconstriction in extreme conditions can increase the risk of cold-related injuries such as frostbite, particularly in extremities like fingers and toes, or on the nose and ears, where blood vessels are constricted most. Frostbite can cause tissue necrosis (tissue death), resulting from prolonged exposure to cold without adequate blood flow to keep the tissues warm.

Furthermore, the constriction of blood vessels leads to a decrease in blood flow to the digestive system. This is another example of the body prioritizing the preservation of heat over other functions that are less critical in cold conditions.

Answer:

demographic transition

Explanation:

The process described in the question is known as the demographic transition model, which explains the stages a society goes through as it develops.

The process described in the question is known as the demographic transition model. It is a concept in Sociology and Geography that explains the stages a society goes through as it develops. In the underdeveloped stage, the birth and death rates are high and unstable. However, as the county develops, improvements in healthcare, education, and standard of living lead to a decline in the death rate, which eventually stabilizes. The birth rate also starts to decline as people have access to family planning methods and economic opportunities outside of agriculture.

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