20. Which does NOT describe primary succession? *
O Decomposing organic matter forms soil
O Presence of existing fertile soil
O Long-term occurrence over extended time
Barren land once covered by glacier

Answers

Answer 1
i think it is B because primary succession is something that can grow on rocks and exposed land. the answer is B because primary success doesn’t include soil where soil is incapable of sustaining life

Related Questions

Wave frequency is measured in units
called Hertz (Hz). One Hertz is defined as
one wave per second. Suppose a person
counted 10 waves passing by over a time
period of 1 second. What is the wave
frequency?

Answers

Answer:

it will be 10Hz ,because number of waves per second is 10 so we divide with 1second

The wave frequency of a wave which is passing by 10 waves over a time period of 1 second will be 10 Hertz (Hz).

What is Wave frequency?

Wave frequency can be defined as the number of waves which are passing through a fixed point in a given amount of time period. The SI unit for the wave frequency is the hertz (Hz), where 1 hertz is equal to 1 wave which is passing through a fixed point in the time period of 1 second. A higher-frequency wave has generally more energy than a lower-frequency wave with the same magnitude of amplitude.

The wave frequency of a wave which is counted to be 10 waves passing through a point in a time period of 1 second will be 10 Hertz (Hz).

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Why would a rough, steep mountain habitat have a higher rate of speciation
than a large, open grasslands habitat? I will make u brainliest
A. The mountain has less variety in the environment.
B. The mountain would cause less fragmentation.
O C. The mountain has wider range of environments.
O D. The mountain has more resources.
SUBMIT

Answers

Answer:

I think the correct answer is A

Explanation:

Answer: C. The mountain has wider range of environments.

(12.02 MC)
Why are spines considered a physical characteristic adaptation in cactus?

Answers

white dense spines help reflect sunlight spines provide shade cacti stem is thick and fleshy to store lots of water stem has waxy waterproof coating to help keep water in the cacti

 Which would be worse a change in DNA or a change in mRNA & why

Answers

Answer:

i think its DNA

Explanation:

im not sure

Marianne is conducting an experiment on homeostasis in paramecium, which is a type of single-felled organism. Which of these observations provides the strongest evidence of a paramecium maintaining homeostasis

Answers

Hello. You did not present the answer options, which makes it difficult for you to receive a specific answer. However, I will try to help you in the best possible way.

One of the most common evidences that a paramecium is maintaining homeostasis is the pumping of water from the vacuoles present in its body.

The paramecium is a protozoan that lives in aquatic environments, mainly those composed of fresh water. The problem with this environment is that water is able to enter the paramecium organism in large quantities and this can promote the disruption of the organism through lysis of the cell. In this case, homeostasis must act quickly and pump water out of the body, through the cell vacuole.

Homeostasis is a regulatory system of the organism, which must promote the balance of the organism, whenever any external or internal factor tries to harm this balance.

Please help me ASAP thank you

Answers

1. the sun 2. decomposers 3. i’m not sure 4. photosynthesis

7. Phytoplankton + Shrimp → Snapper → Shark
There are 2,500 kcal available for the 1st trophic
level.
There are kcal available for the 2nd trophic level.
There are kcal available for the 3rd trophic level.
There are 2.5 kcal available for the 4th trophic level.
Fill in the organisms and energy amounts on the
pyramid to the right
8. Use the food chain you created in #3 and complete

Answers

Answer:

The first level is 2,500

The second is 250

The third level is 25

and the fourth level is 2.5

Explanation:

The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

Am I supposed to answer #8?

The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

What is an ecosystem?

An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

Moreover, 7 major ecosystems are forest ecosystem, grassland ecosystem, tundra ecosystem, desert ecosystem, freshwater ecosystem, and marine ecosystem.

Hence, healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes. They are at the foundation of all civilization and sustain our economies.

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Search using the internet on how you can expand or enhance one's knowledge of animal/fish raising.​

Answers

Answer:

Fish farming involves raising a variety of aquatic animals, such as fish, mollusks and shrimps in an enclosure such as a tank or pond. With the surge in demand for healthy animal protein the  demand for fish and fish products is on the rise. Fish farms have the potential to produce fish for home consumption at about $0.90/lb which is a considerable saving when compared to supermarket prices of over $2.00/lb.

The first step for fish farming is to determine what you are going to do with your full-grown fish. You need to know the purpose, whether you are going to keep fish as a pet or for fish meat. This will decide a lot of things like the space requirements, equipment and capital requirements. If you intend to keep fish as a pet for showcase then a small tank or a backyard small fish farm is sufficient. If you intend to put a small fish farm with one or two ponds then also with a little business mindset you can market 1000 to 2000 lb of fish.  

This will also require you to set up a business entity and have a business mindset.The costs associated with raising different types of fish varies because different fish need certain temperature water to live. The type of fish also decides the requirement of equipment and the feed cost. There are lots of laws about raising fish and animals, and even more, stringent laws related to raising animals that are going to be consumed as food.

Before starting fish farms or fish hatchery of any size or type it is advisable to check local laws and the need of permits  to do so in your area.Normally you will get a license to operate your fish farm for a year which will be renewable. You need to submit the following documents to apply for the license:

Filled in application form

Sketch or aerial map of the facility layout, including dimensions

Copy of fish health certificate

Copy of stocking permit

Letter of a written permission from the landowner (in case if you are not the landowner)

Explanation

(I truly apologize if this answer is too long)

Which was present in the unknown? starch lipids nucleic acids proteins​

Answers

To test for the presence of starch, you can use iodine solution, which turns blue-black in the presence of starch. Lipids can be identified using a Sudan III or Sudan IV test, where lipids will appear as red or orange-stained spots.

Nucleic acids can be detected through tests like the diphenylamine test or the biuret test.

The diphenylamine test produces a blue color in the presence of DNA, while the biuret test results in a purple color in the presence of RNA.

Proteins can also be identified using the biuret test, as proteins will cause the solution to turn purple.

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there are several types of practical sciences activities. tabulate the characteristics of demonstrations , experiments and practical investigations. information should include the following:the role of the learner during the practical activities, the role of the teacher and the important element of the practical activity to consider ?​

Answers

Demonstrations:

Learner's Role: Observes and analyzes the demonstration.Teacher's Role: Demonstrates the concept or process.Important Element: Clear explanation by the teacher.

Experiments:

Learner's Role: Conducts experiments, manipulates variables, and records data.Teacher's Role: Guides the experimental process.Important Element: Controlled variables for reliable results.

Practical Investigations:

Learner's Role: Conducts independent investigations, formulates research questions, and analyzes results.Teacher's Role: Facilitates the investigation process.Important Element: Clear research question to guide the investigation.

Here's is  the characteristics of demonstrations, experiments, and practical investigations in practical science activities:

Demonstrations:

Learner's Role: Observes the demonstration, paying attention to key concepts and outcomes.Teacher's Role: Demonstrates the concept or process, explaining the steps and providing clear explanations.Important Element: A clear explanation by the teacher is crucial to ensure learners understand the demonstrated concept or process.

Experiments:

Learner's Role: Actively conducts experiments, manipulating variables, making observations, and recording data.Teacher's Role: Guides the experimental process, providing instructions, explaining concepts, and ensuring safety.Important Element: Controlled variables are crucial in experiments, as they help maintain consistency and reliability of results.

Practical Investigations:

Learner's Role: Conducts independent investigations, formulating research questions, collecting data, and analyzing results.Teacher's Role: Facilitates the investigation process, providing guidance, resources, and support.Important Element: The formulation of a clear research question is crucial in practical investigations, as it guides the entire investigative process and ensures focused outcomes.

In summary, demonstrations involve learners observing and teachers explaining, experiments involve learners actively conducting experiments with guidance from teachers, and practical investigations involve learners conducting independent investigations with support from teachers. Clear explanations, controlled variables, and focused research questions are important elements in each activity, respectively.

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Please help me anyone ?!!!! ())).

Answers

Rusting of iron and cutting an onion are both examples of chemical changes.

How to explain the chemical change

Rusting of iron is a chemical change because it involves a reaction between iron, oxygen from the air, and water. The iron reacts with oxygen to form iron oxide, commonly known as rust. This process is irreversible, and the chemical composition of the iron is altered during rusting.

Cutting an onion is also a chemical change because it involves the disruption of the onion's cell structure and the release of enzymes. When you cut an onion, enzymes stored within the cells are released, reacting with certain compounds to produce sulfur compounds. These compounds are responsible for the pungent smell and the tears that occur when cutting an onion. The cutting process causes a chemical transformation in the onion's composition, making it a chemical change.

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inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example​

Answers

Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.

Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.

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**100 POINTS** DNA is an organic molecule that is the code of life. DNA is made up of smaller molecules that form together into two chains. Those chains spiral around each other to form the DNA molecule. Which dichotomous key best describes DNA?

Answers

Answer:

Each step is based on genetic traits

Explanation:

so I think u can choose which one it is based on wht i said

Identify the two genes of each parent that would always produce an ear of corn which has all yellow kernels.

Answers

It would be YY or Yy


6. What two places might a free-floating DA molecule end up?

Answers

is there any answer choices before i start answering ur question

Why was Copernicus's heliocentric model not believed until Galileo and Kepler provided mo
The model had the moon orbiting Earth.
The model was against religious teachings.
The model could not explain retrograde motion.
The model did not include all eight planets in the solar system.

Answers

Answer:

the model was against religious beliefs.

Explain the difference between a data table and a graph.
When do you use a data table?
When do you use a graph?
HELP ME!!!

Answers

Answer:

A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

They are used for different purposes, depending on the problem

A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

1. As countries develop, do they have more or less of an impact on the planet? Explain.

2. What is biocapacity?

3. In worldmapper.org, where is the highest level of poverty, population, and hunger in the world?

4. Look at the US for income and resource use from the video Human Population Impacts by Bozeman Science. Did the US grow larger or smaller in size? How do you think this impacts the environment?

5. If the economy is too big, does it have a negative or positive effect on the environment?

Answers

1. The ever-growing development of nations accelerates their impact on Earth, as they consume more resources and energy and heighten their industrial and urban expansion. It`s worth noting that even though developed countries have a greater environmental impact, developing countries also face substantial ecological hurdles as they aim for growth and expansion.

2. Biocapacity refers to the ability of an ecosystem or region to support human populations by providing resources such as food, water, and energy, as well as absorbing waste and pollution.


3. According to worldmapper.org, the highest level of poverty is found in sub-Saharan Africa, particularly in countries such as Niger, Central African Republic, and Chad. The highest population levels are found in Asia, particularly in China and India.


4. According to the video ‘‘Human Population Impacts‘‘ by Bozeman Science, the US has grown larger in size both in terms of population and resource use over time.

5. The impact of a large economy on the environment depends on how it is managed and regulated. While a large economy can provide opportunities for innovation and investment in sustainable technologies, it can also lead to increased consumption and production that can have negative environmental impacts.

1.What is the different between pulmonary circulation and systematic circulation
2. What is the different between aerobic andanaerobic respiration?
3. What is the important of ATP?
4. Write the group blood lack of atigen and antibody respectively?
5. Why the left ventricles thicker than right ventricles?
6. What is the different between disinfectants and antiseptics?
7. Write the life cycle of tape worm?
8. What are the main differences between cholera and typhoid?
9. Write the reason for need classification.
10. Write the genus name and species name of Homosapiens respectively ​

Answers

1. We can see here that the difference between pulmonary circulation and systematic circulation:

Pulmonary circulation is the circulation of blood from the heart to the lungs and back to the heart. While systemic circulation is the circulation of blood from the heart to the rest of the body and back to the heart.

What is aerobic and anaerobic respiration?

2. Aerobic respiration is a type of respiration that requires oxygen. While anaerobic respiration is a type of respiration that does not require oxygen.

3. The importance of ATP is that it is used to power all of the body's cells, including muscle cells, brain cells, and heart cells.

4. The group blood lack of atigen and antibody:

Blood group   Antibodies        Antigens

A                                Anti-B            A

B                                Anti-A                  B

AB                                None         A and B

5. The left ventricle is thicker than the right ventricle because it has to pump blood to a larger area of the body.

6. The difference between disinfectants and antiseptics is that:

Disinfectants kill microorganisms on surfaces, while antiseptics kill microorganisms on living tissue.

7. The life cycle of a tapeworm begins when an infected animal sheds tapeworm eggs in its feces. If a human ingests these eggs, they hatch in the small intestine and the larvae burrow through the intestinal wall and travel to the liver, lungs, or brain. In these organs, the larvae mature into adult tapeworms.

8. The main differences between cholera and typhoid are:

Cholera is caused by the bacterium Vibrio cholerae, while typhoid is caused by the bacterium Salmonella typhi. Cholera is spread through contaminated water, while typhoid is spread through contaminated food or water. Cholera symptoms typically develop within hours of infection, while typhoid symptoms typically develop within days of infection.

9. The genus name for H0mo sapiens is H0mo and the species name is sapiens.

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Which part of a seed acts as the food source for the seed as it grows underground?

Answers

The answer is a cotyledon

Discuss the importance of the change in CO with exercise?

Answers

Enhancing cardiac output allows you to maintain lower heart rates during physical activity. During exercise SV will increase related to the response of the increased pressure of the heart in order to supply blood to the body.

PLEASE HELP!!!
what protein is part of the basal lamina outside blood vessels, and activates platelets when they stick to it?
-hemoglobin
-collagen
-fibrinogen
-tissue factor​

Answers

Tissue factor, I think.

A solid is that form of matter that possesses the following
characteristics __.
a
Particles vibrate around fixed axes
b Definite shape
C
Definite volume
d All of the above

Answers

Definite volume is doesn’t possess a definite volume so therefore the answer is c

How does the DNA in the offspring produced by these methods compare to the DNA in the original
organism?
A) The offspring contain half the original number of chromosomes in each method.
B) The DNA in the offspring is genetically identical to that of the original organism in both methods.
C) The offspring produced by method A contain twice the original number of genes, while those
produced by method B contain half the original number of genes.

Answers

The DNA in the offspring is genetically identical to that of the original organism in both methods.

What is DNA?

In both methods, the offspring produced would have DNA that is genetically identical to the original organism. This is because both methods mentioned do not involve any form of genetic recombination or mixing of genetic material.

The offspring are produced either through asexual reproduction (method A) or by cloning (method B), where the genetic material is replicated without any changes or variations. As a result, the DNA sequence in the offspring remains identical to that of the origin

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Examine the diagram of the nitrogen cycle.
Which option best describes what's happening in the part
labeled 3?
Ammonia, nitrates, and other compounds dissolve in
water and are carried to the oceans.
Human activities add nitrates and other compounds
to Earth's systems.
O Nitrogen is stored in the largest reservoir on Earth.
Nitrogen-fixing bacteria convert nitrogen gas into
compounds usable by plants and animals.

Answers

The part labelled 3 shows nitrogen is stored in the largest reservoir on Earth.

What is the nitrogen cycle?

The transformation and cycling of nitrogen in various forms throughout ecosystems is referred to as the nitrogen cycle, a biogeochemical process. The nitrogen cycle involves the transformation of nitrogen between various chemical forms so that it is available for use by plants and other creatures.

Nitrogen is a crucial element for the growth and development of living beings.

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If a heavy box represents a molecule which of the following represents passive transport in a cell

Answers

Answer:

um theres nothing there

Explanation:

Answer:

A

Explanation:

bc i got it right on a test :)

Where is the greater solute concentration?

Answers

Answer:

outside the cell BH is in the

Answer:

B. Inside the cell

Explanation:

there are more black molecules inside the cell than anywhere else therefore there is a greater concentration inside the cell.

explain the following type of respiration with diagram in toad:
1..Buccal respiration
2..Cutaneous respiration
3.. Pulmonary respiration​

Answers

Answer:

1.Buccal pumping is "breathing with one's cheeks": a method of ventilation used in respiration in which the animal moves the floor of its mouth in a rhythmic manner that is externally apparent.

2.Cutaneous respiration, or cutaneous gas exchange, is a form of respiration in which gas exchange occurs across the skin or outer integument of an organism rather than gills or lungs.

3.Pulmonary ventilation is commonly referred to as breathing. It is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation.

Yan Lang po Sana makatulung

Cellular respiration and photosynthesis are similar in that both require
O A. glucose
B. membrane proteins
C. oxygen
O D. carbon dioxide
UBMIT
12

Answers

Answer:

If you can choose 2 your answers would be A.Glucose and C.Oxygen but if not try Oxygen.

What tonicity term applies to the solution surrounding this cell?

Answers

Hypotonic. Since the black molecules can cross the cell membrane and water molecules are able to cross, the solution surrounding the cell has a lower solute concentration compared to the inside, causing water to move into the cell.

To determine the tonicity of the solution surrounding the cell in the given image, we need to consider the movement of water molecules across the cell membrane.

Based on the image, the black molecules can cross the cell membrane, while water molecules are also able to cross. Tonicity refers to the concentration of solutes outside the cell compared to inside the cell.

In this case, if the solution surrounding the cell has a lower concentration of solutes compared to the inside of the cell, water will move into the cell to equalize the concentrations. This would cause the cell to swell or potentially burst.

Therefore, the appropriate tonicity term for this situation is "Hypotonic." A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, resulting in water moving into the cell.

Hence, the correct answer is "Hypotonic."

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Other Questions
Research a article on how climate change effects polar bears. 7-10 sentences. And dont use any articles that are .com and attach your article link:) Activity2008 was a landmark year in presidential politics. Many aspects of the political climate energized voters, indicating a marked change from theoutgoing administration of George W. Bush.Part ARead this article about the 2008 and 2012 presidential elections. Use the information from the article, information from the lesson, and yourown knowledge to answer these questions: What was the historical significance of electing Barack Obama president in 2008? Was the election a signal of a changing electorate? Which is accurate regarding the impact of different schedules of reinforcement on behavior? How do tides affect the organisms living in intertidal zones? A. Only plants live in intertidal zones because the animals float away with the waves and never return. B. The mechanical forces of the waves keeps the organisms clean. C. The mechanical forces of the waves can dislodge the organisms from their habitat. D. No organisms live in intertidal zones due to the tumultuous environment. The height of a parallelogram is 4 millimeters more than its base. If the area of theparallelogram is 221 square millimeters, find its base and height. Can someone plz help me Which of the following describes the integration center of a feedback mechanism? a.) a molecule, cell, or organ that carries out a response to a stimulus b.) A cell or organ specialized to detect a stimulus c.) Processes information, relates it to other information, and makes a decision of what a response should be Suppose over the last 10 years real wages have fallen by 10 percent. If nominal wages have fallen by 5 percent, what was the average annual inflation rate during this period? What is a simpler form of 5n(3nn+8) ? Which of the following self-instructions would be the most effective in achieving the desired behavior?a. I will go swimming tomorrow evening.b. I will go swimming tomorrow at 7:00 p.m. at Coronation pool.c. I will go swimming tomorrow at Coronation pool.d. I will go swimming tomorrow. An asphalt binder is mixed with aggregate and compacted into a sample. The mass of the dry sample is 1173.5 g, the mass of the sample submerged and then surface-dried with a damp towel is 1175.5 g, and the mass of the sample completely submerged in water is 652.5 g. Find the bulk specific gravity of the compacted sample. reverse the order of integration and then evaluate the integral. xe^ dx dya. e - 1b. e - 68/3c. 4e-68 / 3d. 4e - 68 What do a Republic (Representative Democracy) and Direct Democracyhave in common? (A) Rule by a single political party(B) Rule by the people(C) A small group of leaders(D) A single leader The graph shows the amount of money in a savings account over a period of 10 weeks. How much money was saved over the 10 week period? A) $50 B) $80 C) $110 D) $112 10. Which word makes the most sense in the sentence?Los estudiantes en la escuela primaria van a _______ el papel.O A. reciclarOB. salirO c. botellaOD. decirDont answer with a scam link PLEASE ANSWER!!! The environments in North America affected the growth of early civilizationsby:O A. making it almost impossible for societies to trade with each other.B. forcing all societies to remain hunters and gatherers.C. determining the resources the societies used to survive.O D. preventing any society from forming big cities. If two copper wires are the same length but different thicknesses, the ____ wire has more resistance to current. Group of answer choices thinner thicker Propose areas for innovation to Starbucks Coffee by covering using Technology. at least two innovative ideas and explain. evaluate the following expressions. your answer must be an exact angle in radians and in the interval [ 0 , ] . example: enter pi/6 for 6 . write an informational article about Machu Picchu for a website that focuses on travel to places of historical interest. Write an article that explains to tourists the significance of Machu Picchu as a travel destination. Your articles must be based with ideas and information that can be found in the "Machu Picchu" passage set