In the pyramid, only about 10 percent of the __________ is available within one trophic level is transferred to organisms at the next trophic level. A) energy B) heat C) mass D) matter

Answers

Answer 1

Answer:A) Energy

Explanation:

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Answer 2

Answer:

Energy

Explanation:

Only 10 percent of the energy available within one trophic level is passed to the next higher level in an ecosystem. This is why it takes so much more of the lower level to feed the upper levels.


Related Questions

1. Volcanoes are openings in Earth's crust where lava, gas, and ash can erupt. Where are
active volcanoes located?

Answers

Answer:

Active volcanoes are on plate boundaries (where tectonic plates meet)

Explanation:

Answer:d. d.

Explanation:

A volcano is an opening in the earth's crust

Will give brainlest and alot of points

Anwser all the questions

Are there any faults on your geologic map? if so, what types

What types of rock are found in the area?

Are there any special landforms on your map? if so what types?

Which type of rock has the thickest deposits? the thinnest

Briefly describe any other features on your map?​

Answers

the picture is pretty bad quality, but it looks like there are thrust faults.

a lot of limestone as well as some sandstone, conglomerate, quartize, chert, siltstone, clay, silt, sand, gravel, and mudstone.

there's a canyon in the south

pink limestone has the thickest deposits, and alluvium seems to have the thinnest.

the alluvium seems to appear in branch- or river-shaped formations, and the wahweap, colluvium, and sevier river formations are all in the north.

that's the best i could do with this information, really hope this helps!!

Which statement best describes the climate of a city?
Select one:
The average annual temperature of Austin, TX is 68.5°E
San Antonio, Texas had a high temperature of 102°F today.
Dallas, Texas had 8.6 centimeters of rain today.
The temperature in El Paso, Texas today at dawn was 57°F.

Answers

The average annual temperature of Austin TX is 68.5 F

How does a moth obtain resources?

Answers

Answer:It uses its mouth to eat food and its legs to grab things.

Explanation:

Answer:

The moths have to find nectar, find mates and a plant to lay the eggs on. These plants are dispersed so the moths have to fly considerable distances to find them. Fuel for flight comes from nectar initially but then the moth switches to lipids to fuel flight.

Explanation:

thats what they do.....

What process leads to deforestation and increased erosion? mining reforestation desertification urbanization

Answers

Answer:

The correct answer is (A) MINING

Explanation:

I just took the test and got it right on edge

The process that leads to deforestation and increased erosion is mining. Find more explanation on mining below.

What is mining?

Mining is the process or activity of removing solid valuables from the earth.

During the mining process, solid parts of the Earth crust are removed so as to reach the minerals beneath it.

This leads to the deforestation i.e. removal of trees without replacement and increased erosion due to exposure to agents of erosion.

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A geologist finds a metamorphic rock and notices that it has grains that formed in parallel layers. The geologist pries at the
rock, and it splits apart along the bands formed by the layers.
Which type of rock did the geologist most likely find?
gneiss
limestone
marble
sandstone

Answers

Answer: a) gneiss

Explanation: because edge told me

Type your response in the box.

An invasive species is a non-native species that lives in a region. Human activity has accidentally or intentionally

introduced many invasive species into ecosystems. Name two human activities that could contribute to the

introduction of invasive species. Explain your response.

Answers

Answer:

Explanation:

Many non-native plants are introduced through people dumping their aquariums into bodies of water

People who release non-native animals from captivity (Fish are a big one)

people who bring soil on their boots back from traveling to a different country my introduce non-native bacteria cultures

Answer:

Human travel can lead to an increased risk of invasive species. Native species—both animals and plants—can stow away on cars, trains, boats, and airplanes that bring them to another ecosystem. Climate change also can play a role. Human activity causes increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn creates an increase in global temperatures. Because all species are adapted to a specific climate, climate changes can result in non-native species spreading into other ecosystems.

Explanation:

i am doing the same lesson too:)

Genetically engineered bacteria are being developed to produce alternative fuels.
Please select the best answer from the choices provided
True or false

Answers

Answer:

True

Explanation:

Yes this is true due to advancements in genetic engineering.

A bacterium was transformed by scientists into a plant with the main purpose of the production of biofuel. The microorganism was expelled of its fatty acid but this synthetic route of extraction and purification is however very expensive.

The production of this fuel has several problems such as insufficient rates to meet the production rates of demand for biofuel while being competitive with oil and other forms of biofuel.

Please help
Gravity in Space? Olivia asked her friends what they know about gravity in space. this is what they said:
Justin: There is no gravity in space.
Taylor: Gravity only exists on planets.
Juanita: Gravity is a force that exists between all objects that have mass even in space!

Which friend do you agree with the most? Explain why you agree.

Answers

Answer: Juanita - Gravity is a force that exists between all objects that have mass even in space!

Explanation:


It sounds like the question is asking for your opinion and explanation on what you know about gravity.

To help you out a little bit, here’s some examples of gravity:

Gravity is the force in which pulls objects together. The force of gravity keeps all of the planets in orbit around the sun. Anything that has mass also has gravity. Objects with more mass have more gravity.


Hope this helps :)

PLEASE HELP
Which phrase best defines radiant energy?

A. mechanical waves that require a medium to travel through

B. particles that move perpendicularly in the medium

C. energy transmitted by an electromagnetic wave

D. energy transferred from the earth to the sun​

Answers

Answer:

C. energy transmitted by an electromagnetic wave

Explanation:

Radiant energy is defines as the energy of gravitational and electromagnetic radiation.

The energy is transmitted by electromagnetic waves in a synchronized oscillations of magnetic fields and electric field. Different types of electromagnetic waves have different wavelengths, frequencies, and power and all interact with matter differently. Different types of radiant energy include micro waves, visible light,radio waves, infrared radiation, X-rays,  ultraviolet radiation and gamma rays.

Radiant energy can travel through space and do not require any medium. Example of radiant energy is heat recieved from the sun by the earth travelled through a vacuum by electromagnetic waves.

Hence, the correct option is C.


The primary difference natural and artificial selection is:

Question 12 options:

In natural selection, the selection "pressure” comes from the environment; in artificial selection the “pressure” comes from humans.


In artificial selection, the selection “pressure” comes from the environment; in natural selection the “pressure” comes from humans.


Natural selection is when humans breed the animal; artificial selection is when humans edit genes directly.

Answers

Answer:

it is "In natural selection, the selection "pressure” comes from the environment; in artificial selection the “pressure” comes from humans."

Explanation:

We know that natural selection is when the weakest basically get sick and killed, and the strongest stay. here is the definition of natural selection: "the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution."

we also know that artificial selection (selective breeding) is when humans take, for example, the juiciest, reddest tomatoes, and breed those to create juicy red tomatoes. the exact definition of artificial selection is: "Selective breeding/artificial selection is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together."

so based on the explanation, we know that natural selection is because of the organisms' environment and that artificial selection is because of humans. I hope this helped you! :]

Final answer:

The primary difference between natural and artificial selection lies in the source of the selection pressure: environmental conditions drive natural selection, while human preferences and interventions guide artificial selection.

Explanation:

The primary difference between natural and artificial selection is where the selection "pressure" comes from. In natural selection, environmental factors such as predators, availability of food, or climate conditions act as the selection pressure, favoring individuals with traits that enhance their survival and reproductive success. Conversely, in artificial selection, humans actively choose which individuals of a species to breed based on desired traits, leading to populations that are more aligned with human preferences over time. Thus, the key distinction lies in natural selection being driven by environmental challenges and survival of the fittest, while artificial selection is guided by human desires and intervention to cultivate certain traits.

Water includes...

A. Temperature, pH, salinity, precipitation, and humidity

B. Humidity, pH, perception, wind , and pressure

C. Salinity, temperature, pressure, humidity, and wind

D. Temperature, pressure, precipitation, humidity, wind

Answers

Answer:

A, Temperature, pH, salinity, precipitation and humidity

Explanation:

Water includes all of these options. Also, water doesn't include wind which is in all three of the other options, so this is the only option that would work. Hope this helps :)

A- temperature, pH, salinity, precipitation, and humidity. All of the others have wind, which doesn’t have to do with water.

1. what is the optimal pH for pepsin ?

2. What is the optimal pH for lipase?

3. Do you think lipase is an enzyme that is found in the stomach ?

Answers

Final answer:

The optimal pH for pepsin is 1.5 and lipase has an optimal pH around 7-8. Lipase is not typically found in the stomach.

Explanation:

The optimal pH for pepsin, the main digestive enzyme in the stomach, is 1.5. Pepsin works best in the acidic environment (low pH) of the stomach, where it helps break down proteins into smaller molecules.

On the other hand, lipase is an enzyme that primarily functions in the small intestine. The optimal pH for lipase is around 7-8, which is considered neutral to slightly alkaline.

No, lipase is not typically found in the stomach. It is primarily produced and secreted by the pancreas, and its main role is to break down fats (lipids) into smaller components that can be easily absorbed and utilized by the body.

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Pepsin's optimal pH is 2.0 for protein digestion in the stomach. Lipase's optimal pH is 8.0, active in the small intestine.

The optimal pH for enzymes can vary significantly, and it's important for their activity in different parts of the body:

1. Pepsin is an enzyme that works in the stomach, and its optimal pH is approximately 2.0. This highly acidic environment is conducive to the enzyme's activity in breaking down proteins.

2. Lipase, on the other hand, has an optimal pH of around 8.0, which is more alkaline. This enzyme is not typically found in the stomach. Instead, lipase primarily functions in the pancreas and the small intestine, where it aids in the digestion of fats.

3. Given that the stomach is a highly acidic environment, lipase would not be as active there due to its preference for a more neutral to alkaline pH. Therefore, it's not considered a major enzyme of the stomach. The primary lipase for digestion, pancreatic lipase, operates in the small intestine where the conditions are more suitable for its activity.

Enzymes like pepsin and lipase are crucial for digestion, each working best under specific pH conditions that match their location in the digestive system.

A scientist observes a cell under a microscope and notices that the cell’s cytoplasm is almost completely full of rough endoplasmic reticulum. What would you hypothesize these cells are making in large amounts? Explain your answer in your own words and in full, complete sentences.

Answers

Answer:

I hypothesize that the cells are producing many proteins. This is because rough endoplasmic reticulum has ribosomes on the surface and ribsomes function is to make proteins.

Explanation:

As the Earth rotates on its axis and revolves around the Sun, the Earth goes through seasonal changes. Why does this happen?
A. because the Moon revolves around the Earth
B. because the Earth's axis is tilted
C. because the Earth rotates slowly
D. because the Earth is closer to the Sun during the summer

Answers

Answer: The answer is B: Because the earth's axis is tilted.

Explanation:

Instead, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees. The tilt in the axis of the Earth is called its obliquity.

As the Earth rotates on its axis and revolves around the Sun, the Earth goes through seasonal changes. Because the Earth's axis is tilted.

What is Earth's axis?

The Earth's axis is inclined 23.4 degrees, or almost halfway between its extremes, and this angle is steadily getting smaller throughout the course of a cycle that lasts roughly 41,000 years.

It was last tilted to its highest position approximately 10,700 years ago, and it will tilt to its lowest position in roughly 9,800 years. As obliquity gets less, it gradually helps to milden our seasons, producing warmer winters and cooler summers that eventually allow snow and ice to accumulate into massive ice sheets at high latitudes.

As the amount of ice cover grows, more of the Sun's radiation is reflected back into space, causing a further cooling.

Therefore, As the Earth rotates on its axis and revolves around the Sun, the Earth goes through seasonal changes. Because the Earth's axis is tilted.

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According to the Article, why is the Wallace's giant bee in danger of losing its home?
A
Because the rare bee can be sold online for thousands of dollars
Because the bee has been making its nests inside termite nests
Because Wallace's giant bee hunters are now traveling to Indonesia
D
Because Indonesia has lost nearly 15 percent of its trees since 2001

Answers

Answer:

D

Because Indonesia has lost nearly 15 percent of its trees since 2001

Explanation:

The Wallace is known to be the largest bee in the world. It is also known to have its nests high up on trees and they are commonly in Indonesia.

The bees however are facing threats of extinction due to deforestation and urbanization. Indonesia is known to have lost nearly 15 percent of its trees since 2001 which is the bees habitat.

David and Luisa are trying to determine if two samples are the same or different substances. First, they observed sample 1 and sample 2. Then, they wrote down their observations. Review their observations. Then, answer the questions below.

Which student’s observations would prove more useful to a chemist?

David's observations

Luisa's observations
Explain your answer below.

Answers

Answer:

Luisa's Observation.

Explanation:

Luisa's observation is explained better than David's was, and judging by the observations, David studied the same material, while Luisa's observation contained different description, meaning that there was likely more than one substance being observed and studied.

David researched the same material, according to the observations, but Luisa's observation is better explained than David's, and since Luisa's observation had different description, it is possible that more than one item was being viewed and studied.

What is observed sample?

All occurrences of a random variable are referred to as observations of that variable in statistics. The actual collection of data points is also referred to as a sample of a particular population of observations.

Any value calculated from your sample data is referred to as a sample statistic (or simply a statistic). The sample average, median, sample standard deviation, and percentiles are a few examples.

Because a statistic is based on data gathered through random sampling, which is a random experiment, it is a random variable.

Therefore, Luisa's observations  would prove more useful to a chemist.

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Answer the first question please!

Answers

Answer:

hunger, thirst, sleepiness

Answer:

hunger thirst sleepiness

Explanation:

sry if wrong

I need help, please! You can answer whichever one you want. Thank you!

Answers

Answer:

denamrk is a very populosus country

Electromagnetic waves are examples of ____ waves. A. Longitudinal waves B sound waves C. Surface waves D. Transverse waves

Answers

Answer:

D. Transverse waves

Explanation:

Ocean waves are also transverse, and these are used for many recreational activities such as surfing and swimming. They can also be used to generate renewable electricity from the wave motion.

--Hops

The water in the bottom of this bottle best represents -
rainfall

condensation

rivers

accumulation

Answers

Answer:

Option A, accumulation

Explanation:

As we can see in the image,  the water gets heated and convert its pahse from liquid to gas i.e from liquid water to water vapor.  As it rises above, it condenses and converts from water vapor into liquid water. The liquid water then moves in the downward direction and collects at the base. This process of collection at base can be related to accumulation of running water.

Option A is correct

which of the following is not recycle in the biosphere

A: energy

b:nitrogen

c:water

d:carbon

Answers

The movement of nutrients through the biosphere is different from the transfer of energy because, whereas energy flows through the biosphere and cannot be reused, elements are recycled.
Final answer:

Among the options, energy is not recycled in the biosphere. While matter like nitrogen, water, and carbon is cycled within the biosphere, energy flows one-way and is not reused but lost as heat.

Explanation:

In the biosphere, energy is the only component among those listed that is not cycled back and reused. Both matter and energy flow into the biosphere. Matter is cycled within and between ecosystems, such as through the carbon, nitrogen, and water cycles. Energy, however, is not recycled and flows in one direction. Sunlight is the initial source of energy for almost all life on Earth. It is converted to chemical energy by photosynthetic organisms and then passed on to consumers through food chains. This energy is not recycled but lost as heat as it passes through the food chain.

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What is not a part of heredity?
A. traits
B. nutrients
C. chromosomes
D. phenotype

Answers

Answer:

B. nutrients

Explanation:

Heredity refers to the passing down of traits throughout generations. Chromosomes, traits, and phenotype are all related to traits. Nutrients are not.

Answer: Nutrients

Explanation: Nutrients we get from food, there for it is not apart of our DNA/ Hereditary features.

How does Keplers third law compare the periods and orbital radii of two planets with a solar system?


-the square of the ratio of the periods equals the cube of the ratio of the radii

-the square of the ratio of the periods equals the ration of the radii

-the ratio of the periods equals the square of the ratio of the radii

-the cube of the ratio of the periods equals the square of the ratio of the radii

Answers

Answer:

The square of the ratio of the periods equals the cube of the ratio of radii.

Explanation:

German astronomer Johannes Kepler who lived from 1571-1630, gave the three descriptive laws called Kepler's law. He derived this law after he had study and make observations of planetary motion done by Tycho Brahe.

The Kepler's third laws state that the square ratios of the period equals the cube ratio of the distance or radii.

From Kepler's third law, the square of the ratio of the periods equals the cube of the ratio of the radii.

Kepler's third law states that the ratio of the square of an object's orbital period with the cube of the semi-major axis of its orbit is the same for all objects orbiting the same primary.

The law is simplified using mathematical formula as follows;

T² ∝ R³

[tex](\frac{T_2}{T_1})^2 = (\frac{R_2}{R_1} )^3[/tex]

where;

T is the orbital period of the planetR is the radius of the planet

Thus, we can conclude that from the Kepler's third law, the square of the ratio of the periods equals the cube of the ratio of the radii.

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Two structures play an important role in the way that birds digest food.
is a muscular structure that grinds food into small pieces.
temporarily stores food before it enters the stomach.

Answers

Answer:

Gizzard and crop

Explanation:

I just answered that question.

How are bacterial and fossil species defined

Answers

Answer:

fossil species- must be old relative to the time of origin of the extant clade.

Single-celled microorganisms that can exist either as independent (free-living) organisms or as parasites (dependent on another organism for life). The plural of bacterium

Answer:

Bacterial: a microscopic, single-celled organisms that thrive in diverse environments.

fossil Species: the fossil species must be old relative to the time of origin of the extant clade (common ancestor).

Explanation:

How does acid rain effects the plants and animals of an ecosystem?

Answers

Answer:

acid rains that land directly on tress and crops can harm them. which results in more aluminum absorption from soil, which is carried into lakes and streams which can kill the animals in the water

Answer:

Explanation:

Acid rain has many ecological effects, especially on lakes, streams, wetlands, and other aquatic environments. Acid rain makes such waters more acidic, which results in more aluminum absorption from soil, which is carried into lakes and streams. ... Trees' leaves and needles are also harmed by acids.Scientists know that acidic water dissolves the nutrients and helpful minerals in the soil and then washes them away before trees and other plants can use them to grow. At the same time, acid rain causes the release of substances that are toxic to trees and plants, such as aluminum, into the soil.

2 points
The EPA sets national air quality standards for common air pollutants. The
graph shows the change in the concentrations of these pollutants over time.
Which pollutant have the air quality standards had the greatest impact on?
Monitored concentrations
of pollutants
PM
Normaland Concert
1995
199 200 2005 2010
Year
O A. Ozone
B. NO
OC. PMO
O D. Lead

Answers

Answer:D lead

Explanation:

Based on the graph, it appears that the air quality standards have had the greatest impact on lead.

What is National air quality?

National air quality refers to the level of pollution in the air across an entire nation.

The graph shows a significant decrease in lead concentrations since 1990 when the EPA began regulating lead emissions. The other pollutants, while still showing improvement, do not have as drastic of a decrease as lead.

The graph provided shows the change in concentrations of common air pollutants over time. The pollutant that stands out the most in the graph is PM (particulate matter), as it shows a significant decrease in concentrations over time.

This suggests that the air quality standards set by the EPA have had a positive impact on reducing PM concentrations in the air. Ozone, NO (nitrogen oxide), and lead also show some level of decrease in concentrations over time, but the decrease is not as significant as that seen with PM.

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Which of these diseases can be spread?

Malaria
Cancer
Diabetes
Parkinson's Disease

Answers

Answer:

Malaria is the correct answer.

Explanation:

The rest are all diseases that are not able to be spread, but malaria can be spread from person to person due to an infected mosquito.


Which is an example of a fractional scale?

Answers

Answer:

Fractional or Ratio Scale: Afractional scale map shows the fraction of an object or land feature on the map. This type uses a set of numbers that represents the object or a landmark. As an example on the left photo, the orange-shadedscale represents a 2/3 fractional scale. 2.

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