In a food chain 200 kg of wheat is fed on by 18 kg of mice which in turn are eaten by 1kg of hawk. What is the percentage energy transferred from the first trophic level to the third?

Answers

Answer 1

Answer:

0.1% of energy

Explanation:

Energy flow: From the whole quantity of energy that reaches the earth's surface, autotroph organisms or producers absorb only 0.1 or 1%.

From the input of solar energy begins a unidirectional energy flow through all the organisms in the ecosystem, from autotrophs to heterotrophs, until it is dissipated in the environment.  

At each trophic level occurs an energy transfer to the next, with only 10% being usable in each of them. This assessment is called "The 10% rule". As a general rule, only about 10% of the energy stored as biomass at one trophic level, per unit time, ends up as biomass at the next trophic level, in the same unit of time.

If wheat transferred 10% of the energy to mice, and of that 10% mice transferred 10% of the energy to hawk, then the percentage of energy transferred from the first trophic level to the third equals 0.1%.

10% (1st TL-2nd TL) / 10% (2nd TL - 3rd TL) = 0.1% (1stTL - 3rd TL)

TL = Trophic level          


Related Questions

How does Klinefelter syndrome caused by nondisjunction might have occurred??

Answers

Answer:

Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.

Explanation:

What phase of mitosis is shown in the picture above?

A. Metaphase
B. Anaphase
C. Telephase
D. Prophase

Answers

Answer (A) metaphase

The phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

What is Mitosis?

Mitosis may be defined as the type of cell division in which two daughter cells are formed from a parental cell with the exact number of chromosomes.

In metaphase, the chromosome usually lines up in one plane and forms an equatorial plate in which they are attached to the spindle fiber through their centromere.

Therefore, the phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

To learn more about Mitosis, refer to the link:

https://brainly.com/question/19058180

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Which of the following is a radical??
A.H2O
B.H
C.OH
D.O

Answers

Answer:

A

Explanation:

because h2o is permanent

how do mutations lead to genetic diversity?

Answers

The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.

hope it helps.

explain how the geologist knows that the flow is older then the intrusion

Answers

Through dating a sample of that rock, we determined the extrusion to be 250 million years old. An intrusion extends from the bottom layer into the fourth oldest layer. Through dating a sample of that rock, we determined the intrusion to be 100 million years old. The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.

Homer Simpson goes to his job every day at the Springfield nuclear
power plant. His job as a safety inspector helps keep people and the
environment safe from the possible hazards of nuclear power. Most of the
hazards from his job involve monitoring which of the following?*
A.Uranium-235 and waste containment
B.Water levels and temperature in local lakes
C. Carbon dioxide and other greenhouse gas emissions

Answers

Answer: I've never watched Simpsons, but I saw half an episode once on tv where he totally blew up the entire company or something. But I think they said his job was as a technical guy, but he kept falling asleep, and didn't know how to do anything, and that's why he couldn't stop the explosion, or something.

I hope this helps. I'm thinking it doesn't, though.

what is the difference between DNA of a stomach cell and the DNA of a brain cell?

Answers

Answer:

they have different functions

Explanation:

the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors

Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.

What happens during development?

Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.

For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.

Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.

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any good hypothesis idea?​

Answers

Answer:

is plant growth affected by temperature

Explanation:

a boys pushes on a heavy box, but it does not move. what force is resisting the boy's push?

Answers

Answer:

Friction! :)

Explanation:

Friction is resisting the push. You will learn that newtons are also working against the boys push. The simplest answer is friction.I hope this is helpful!

Answer:

The Answer is Friction

Explanation:

Friction is resisting the boy's push, more informativlly, the type of friction here is Static Friction, which is the frictional force that resists force that is applied to an object.

Mark me as Brainliest if this answer helped :)

Some fire extinguishers contain liquid carbon dioxide.
Suggest how carbon dioxide gas can be changed to liquid carbon dioxide without
reducing its temperature.

Answers

Answer:

:)

Explanation:

The CO2 Extinguisher Cannisters contain carbon dioxide in liquid form, and when the extinguisher is let off the liquid is released into the air neutralising the oxygen that the fire is feeding on, disabling the fires ability to spread.

i think its what you want :)

neutralising-make (something) ineffective by applying an opposite force or effect.

Looking at the chart provided, the students need to develop a classification scheme to distinguish plant and animal cells. The presence of which of the following structures/organelles would be most useful for this purpose?

Answers

Answer:

The Cell Wall of plants are more geometrical, than animal cells. Plant cell wall are also stronger.

Plant cell is larger than animal cells

Plant cell have chloroplast while animal cells doesn't

Explanation:

Answer:

cell wall

Explanation:

Plant cells contain a cell wall while animal cells do not have a cell wall. By looking for the presence of a cell wall, students would be able to positively identify a cell as either plant or animal.

Why are individuals in many developing countries susceptible to diseases such as
polio and pertussis?

because of a lack of education
because of poor hygiene
because of genetic variation
because of a lack of vaccination

Answers

Answer:

because of lack of vaccination

Explanation:

this occur mostly in Nigeria

Answer:

I hope this helps.

Explanation:

Please help me with science!

Answers

I do believe the answer is B because since it is going through each phase, the DNA strand will continue to adjust itself as the cell moves making the strands split allowing themselves to create copies. Since DNA has to be connected with another strand that will fit, it will be able to multiply itself based on the pieces that are missing

Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.​

Answers

Answer:

cyanobacteria

Explanation:

There is suggestive evidence that photosynthetic organisms were present approximately 3.2 to 3.5 billion years ago, in the form of stromatolites, layered structures similar to forms that are produced by some modern Cyanobacteria

slove and get brainliest!!!​

Answers

The answer is D. I got it right on the test

Which statement is not an example of how the use of resources has changed?

A. More products are made from recycled materials.
B. Cars still largely rely on oil.
C. Car companies have developed hybrid cars.
D. More wind farms are present in the United States.

Answers

Answer:

B. Cars still largely rely on oil.

Explanation:

Nowadays, most countries still use transportation systems that burn fossil fuels. An example of this may be private cars that consume gasoline, which derives from fossil fuels (oil). The use of fossil fuel transportation systems increases the emission of carbon dioxide (CO2), a major greenhouse gas involved in global warming. In the near future, it is expected that fossil fuel-based vehicles can be replaced by electric cars that use energy obtained from renewable sources (e.g., solar energy, wind energy, etc).

Answer:

B is not correct. I know cause I took the test here are the correct answers!

Car companies have developed hybrid cars.

More wind farms are present in the United States.

More products are made from recycled materials.

Explanation:

I just want you to get it right and get an A

1
The part of an ecosystem where plants and animals live.​

Answers

Answer:

habitat

Explanation:

They live in the habitat of an ecosystem

Answer:

Habitat

Explanation:

A Habitat supports both plants and animals.

why the replication in the lagging strand, happened discontinuously?

Answers

On the upper lagging strand, synthesis is discontinuous, since new RNA primers must be added as opening of the replication fork continues to expose new template.

One open container and three insulated, closed containers are filled with 1000 mL of ice cream. Each container is placed in the same location for one hour and the ice cream is checked for melting. The data are recorded in the graph.

According to the graph, which container is most effective in keeping the ice cream from melting?

Question 3 options:

the open container


the rubber-lined container


the aluminum-lined container


the fiberglass-lined container

Answers

Answer:

the aluminum-lined container

Explanation:

Answer:

fiber lined,,

Explanation:

When an amoeba eats, it does so by the process of endocytosis. What type of transport is this

Answers

Answer: Active transport.

help ASAP! Please! Ill mark brainliest

Answers

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Explanation:

b

What is the Lytic Cycle?
A) The virus enters the host, makes copies of itself, and then destroys the cell virus doesn’t immediately destroy the cell but instead remains inactive for a prolonged period of time
B) The virus enters the host, makes copies of itself, and then destroys the cell.

Answers

The correct answer is B

What would happen if the rate of evaporation reduces

Answers

Answer:

When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.

Answer:

if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.

Help please I will give you the brainliest I need help with 3

Answers

Answer: c) A High-Pressure System

Explanation: A high pressure system is a whirling mass of cool, dry air that generally brings fair weather and light winds.

Essay
In a food web, energy is transferred from one level to the next. Describe what might happen in an ecosystem if the number of primary producers was dramatically reduced.

Answers

Answer:

from food web their are many eaters and subeaters so we can easily say energy will decrease when th e first one eat the other

Answer:

the primary consumers or herbivores which feed on the producers would die.

Explanation:

herbivores eat plants and if the plants reduce they will die

Which of the following is NOT true about living things
(5 Points)
Some living things are made of only one cell
All living things are made of cells
Some living things have no organization
Multicellular organisms have different types of cells

Answers

Answer: Some living things have no organization.

Explanation:

A is true because there are unicellular organisms.

B is true because all living things are composed of cells.

D is true because multicellular organisms do have different types of cells (skin, muscle, liver, heart, brain, gamete, etc, etc).

This leaves C.

What is the next step after a hypothesis

Answers

Answer:

test hypothesis..........

Maya Is a carrier for albinism, a recessive tralt that results in the absence of the skin plgment melanin In halr and
eyes. She marries Jack, and they have four children: Zach, Olivia, Sophla, and Veronica. Veronica expresses the
tralt for albinism, but her three siblings are unaffected by the recessive tralt.
Draw a pedigree that Illustrates the famlly's tralts, and upload your pedigree.

Answers

Answer:

The correct answer is as follows:

Explanation:

In this given question, Maya is a carrier for albinism which express in presence of two copies of a recessive gene and after marriage with Jack she has 4 children among three are normal and one has albinism which suggests that the ratio of the albinism in this family is 3:1 phenotypically.

Maya - Aa (heterozygous carrier)

Jack - AA or Aa

cross between two

     A     a

A   AA   Aa

a    Aa    aa

this cross showing that the jack is heterozygous for the condition as the result are the same as given in question 3:1

How can you explain the difference in number of mitochondria in these types of cells?

Answers

Answer:

Organs which need alot of energy to function properly have a greater number of mitochondria

Explanation:

Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.

Answer:

Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.

What are the properties of clay, and what are the properties & structure of loam soils.
you don’t need to answer all of them, just at least the properties, thanks.

Answers

Answer:These properties include: cation exchange capabilities, plastic behaviour when wet, catalytic abilities, swelling behaviour, and low permeability. (clay)

f sand (particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9×10−5 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9×10−5 in)). By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. (Soil)

Explanation:

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