
Why is it beneficial that many predatory fish have larval and juvenile stages that feed at a low trophic level, while the adults feed at a tertiary or quaternary trophic level? My answer was that the larval and juvenile stages would get more energy but my

Why is it beneficial that many predatory fish have larval and juvenile stages that feed at a low trophic level, while the adults feed at a tertiary or quaternarty trophic level? My answer was that the larval and juvenile stages get more energy since they

• Explain the flow of energy through the ecosystem using specific plant and animal examples. Correctly use the following terms in your example and explanation; primary producer, primary consumer, secondary consumer, tertiary consumer, trophic level. •

What is true of the energy that is passed from one trophic level to the next in a food chain? A)About 10% of the energy passed from one level to the next is released as heat. B)About 10% of the stored energy of one level becomes stored energy at the next

this is regarding food chains.will the impact of removing all the organisms in a trophic level be different for different trophic levels?can the organisms of any trophic level be removed without causing any damage to the ecosystem?


1.What is the % concentration of oil in the first, second, and third trophic levels in our food chain? 2.How did the concentration of oil change from one trophic level to the next? 3.How does the change in concentration represent biomagnification? 4.How

what is a trophic level how does the amount of energy change as you go from one trophic level to another

will the impact of removing all the organisms in a trophic level be different for different levels?can the organisms of any trophic level be removed without causing any damage to the ecosystem?

[Continued from my last post] B) Explain where a detritivore and a decomposer could enter this path. Explain what they feed on on the systems. My answer: Detritivores include worms and fungal and bacterial decomposers. Bacteria and fungi are known as

Nikki is fishing from a bank 27 feet above water level. In this location, the fish tend to feed at 37 feet below the surface. How long must Nikki's fish line be to reach the fish?

energy that is lost at each trophic level of an ecosystem is replenished by????

please explain why biomass and energy decreases fron one trophic level to the next

What percentage of the energy from the grass would the hawks get in the trophic level pyramid of a food chain

A cattle feed company has two grades of feed , A and B . Feed A cost $2 per 100 pounds and feed B cost $3 per 100 pounds . Ranchers can order a mixture of feeds A and B . Write a program that calculates the charge for a feed order . The program should ask

What organism is likely to be in the bottom trophic level of a food chain? Single Celled of some kind depending on the environment.


1. Urea is made where? Is it in the kidneys or the liver? 2. Which trophic level gets the least amount of energy? a) producers b) herbivores c) carnivores d) decomposers I think the answer is c, but i'm not sure if it's right.

Which organism is a thirdorder heterotroph? To what trophic level does that organism belong?

Say you had a pond that initial had 30 fish. There was 3 fisherman collecting at least 2 fish to feed their family, They fish for 3 seasons ? At the end of the day you would double the fish whatever you had left. $5 a fish What happened to amount of food

In a short answer, Explain why an energy pyramid is used to represent the amount of energy at each trophic level.

describe the efficiency of energy tranfer and how the amount of energy available at each trophic level affects the structure of the ecosystem>

Hi, I am studying energy movements in ecosystems. Could you help me with this question: What type of food would be consumed by a secondaryconsumer in the third trophic level of a food chain.

Hi. I live in Wisconsin and I have to describe how productivity (amount of biomass produced), diversity (variety of species), complexity (number of species in trophic levels and number of trophic levels), and resilience (remaining stable) affects my

Hi. I live in Wisconsin and I have to describe how productivity (amount of biomass produced), diversity (variety of species), complexity (number of species in trophic levels and number of trophic levels), and resilience (remaining stable) affects my

please help me with this one too! : if it costs about $0.10 per week to feed a snake, how much does it cost to feed 35 snakes for 4 wks?

It costs about .10cents per week to feed a snake. How much does it cost to feed 35 snakes for 4 weeks?


Using a periodic table, determine the number of electrons held in energy levels 13 of each atom. B2 in level 13 in level 20 in level 3 C2 in level 14 in level 20 in level 3 Mg2 in level 18 in level 22 in level 3

A species of bird with three toed feet feeds on worms and crawling insects. Over a period of several thousand years, the ocean level rises, and the region where the bird lives is flooded. Over several thousand years or so the birds descendant evolve webbed

If 30 hamburgers feed 25 how many burgers feed 45

I need a topic for my science fair experimentI'm in the 6th grade and I would like to do something w/ clown fish, but I'm not sure what my hypothesis should be, please help. We own a pet shop so have have a lot of access to salt water stuff. P.S. It can't

In order to compare two kinds of feed, thirteen pigs are split into two groups, and each group received one feed. The following are the gains in weight (kilograms) after a fixed period of time: Feed A: 8.0 7.4 5.8 6.2 8.8 9.5 Feed B: 12.0 18.2 8.0 9.6 8.2

Trophic Level Cylinder Volume of H2O Volume of Oil Total Volume % Oil 1st 1000 ml 1000 ml 2nd 100 ml 100 ml 3rd 10 ml 10 ml

A box of dog food would feed 5 dogs for 4 days. How long would it feed 8 dogs ?

Zoe can feed six horses in one hour. Matt takes three times as long to feed that many horses. How long will it take them together to feed 32 horses? a) 2 hours b) 3 hours c) 4 hours d) 6 hours

DMF Feeds has two different types of cattle feed containing crude protein in the amount of 45% and 20% respectively. How many of each type must a feed lot manager mix together to obtain 10000lbs of a mixture that is 25% protein?

A chicken farm orders bags of feed from two farmers. Store X charges $20 per bag, and store Y charges $15 per bag. The farm must obtain at least 60 bags per week to care for the chickens properly. Store Y can provide a maximum of 40 bags per week, and the


Which trophic level gets the least amount of energy? a) producers b) herbivores c) carnivores d) decomposers I think the answer is c, but i'm not sure if it's right. I posted this question earlier, but google didn't provide with an answer. I still think

Jesse took two data points from the weight and feed cost data set and calculated a slope, or average rate of change. A rat weighs 3.5 pounds and costs $4.50 per week to feed, while a Beagle weighs 30 pounds and costs $9.20 per week to feed. Using weight as

Jesse took two data points from the weight and feed cost data set and calculated a slope, or average rate of change. A rat weighs 3.5 pounds and costs $4.50 per week to feed, while a Beagle weighs 30 pounds and costs $9.20 per week to feed. Using weight as

carol FRIEND ESMERALDA IS AWAY FOR 3 DAYS.SHE ASKED CARLO TO FEED HER PET DOG TWICE A DAY.CARLO FEED HIM ONE 8OUNCE CAN EVERY TIME HE GOES ESMERALDA'S HOUSE. HOW MANY CANS OF FOOD DOES ESMERALDA NEED TO BUY FOR THE THREE DAY VACATION? SHOW HOW YOU

A farmer buys two varieties of animal feed. Type A contains ounces of oats and ounces of corn per pound. Type B contains ounces of oats and ounces of corn per pound. The farmer wants to combine the two feeds so that the resulting mixture has at least

it is estimated that at the turn of the 20th century, one farmer in the U.S could feed 25 people, whereas today, the ratio is about 1 to 130. How many farmers would it take today to feed 2600 people? Please help i don't even know how to do this problem!

* Approach level, On level, Beyond level (What are the meanings of the words? There are English problems with three levels in the text book. Approach level is for the beginners. On level is for the mediumlevel students. Beyond level is for the high level

only 10 percent of the energy is passed from one trophic level to the next. Explain where the other 90 percent of the available energy goes. Thank you for using the Jiskha Homework Help Forum BUT we are here to HELP you not to DO the work for you. It is

A farmer has enough food to last his 40 cattle 35 days. If he buys 50 cattle, how long can the same feed can last? Let X be the number of days the same feed can last

These statements describe the depth at which two sea creatures are swimming. Note that sea level is equal to zero. The sixgill shark is swimming 8,200 feet below sea level. The fangtooth fish is swimming 6,500 feet below sea level. Complete this sentence.


Write a proportion that is equivalent to the statement: If 2 pizzas can feed 7 people, then 6 pizzas can feed 21 people.

Write a proportion that is equivalent to the statement: If 2 pizzas can feed 7 people, then 6 pizzas can feed 21 people.

If 270kg of corn would feed 42 horses for 21 days, for how many days would 360kg of it feed 21 horses?

Webster Aquatic Center offers various levels of swimming lessons yearround. The March 2005 Monday and Wednesday evening lessons included instructions from Water Babies through Adults. The number in each classification is given in the table that follows.

Select one of the age groups chosen in Week Six, decide on the child’s age, what level and stage he or she is at developmentally, and list some characteristics demonstrating the nature of the stage. Post in 200300 words. The following is what I have so

Lisa’s pet shop has 2 fish tanks. Tank A contains smaller fish who are fed 1 gram of food each per day. Tank B contains larger fish who are fed 2 grams of food each per day. If Tank B contains 2/3 the number of fish that Tank A contains, will Lisa ever

18 young adults you need 108 cups of water and 72 cups of water show how to sclae down this ratio to feed 3 young adults

Each cow eats 4.5 cups of feed a day and the bucket it comes in contains 250 cups. The buckets cost $26.75 each. If a farm has 16 cows, how much will it cost to feed all of the cows for 1 week? (system of equations) Cost____________________

Think of this example of an ecosystem: A large tree with grasshoppers, caterpillars and other animals eating the leaves, birds eating the leaf eaters, snakes eating birds and a hawk eating snakes. An energy pyramid that counts the number of organisms at

what are the trophic levels from a animal food web?


if it takes 8 quarts of ice cream to feed 30 people, how many quarts will it take to feed 75 people?

Assume that a mature female vegetarian consumed 2 pounds of food daily for one year. At the end of this one year, she weighed ½ pound more than she weighed at the beginning of that year. a. What was the percentage of biomass conversion at this trophic

Sam needs to feed 10 dogs at the animal shelter. The dog food is sold in 5 pounds. How many bags of dog food will he need to feed the dog for an entire week? Estimate your answer.(first estimate then multiply)

do your results support idea that trophic cascades occur in nature?

Why are food chains typically limited to 4 or 5 trophic levels?

lilt saw a jelly fish at 6 feet below sea level. She saw a blue fish at 10 feet below sea level. What is the distance between the blue fish and the jelly fish? Is the answer 4 feet?

I completed my matric in 2013 and I am examted to diploma with the following subjects 1.Setswana78%=Level 6 2.English68%=Level 5 3.Afrikaans57%=Level 4 4.Maths literacy47%=Level 3 5.L.O58%=Level 4 6.Economics47%=Level 3 7.Business Studies43%=Level 3

I don't know how to explain or if Ive got my homework answer correct. The question is: A patient on dialysis has a high level of urea, a high level of sodium and a low level of potassium in the blood. Why is the dialyzing solution prepared with a high

Example 3: The table below shows the amount a banquet hall charges to feed different sized groups of people Number Of People  COST 10 $200 14 $252 21 $441 23 $471 Using a linear model, what is the approximate residual value of the cost to feed 21 people

which animals eat butterflies? i know that birds do feed on butterflies even though they are hard to catch, but what else? please tell me any other animals that feed on butterflies. thanks you.


2(a)Consider the arithmetic progression with terms A3=2 and A12=23. Find the sum of A1+......+A40 (can do) (b)In 1800 the population of England was 8 million. The economist Malthus (17661834) produced a hypothesis, suggesting:that the population of

2(a)Consider the arithmetic progression with terms A3=2 and A12=23. Find the sum of A1+......+A40 (can do) (b)In 1800 the population of England was 8 million. The economist Malthus (17661834) produced a hypothesis, suggesting:that the population of

2(a)Consider the arithmetic progression with terms A3=2 and A12=23. Find the sum of A1+......+A40 (can do) (b)In 1800 the population of England was 8 million. The economist Malthus (17661834) produced a hypothesis, suggesting:that the population of

patient on dialysis has a high level of urea, a high level of sodium and a low level of potassium in the blood. Why is the dialyzing solution prepared with a high level of potassium but no sodium or urea?

A feed company is developing a feed supplement from two grains A and B. Each kilogram of A contains 0.3 grams of protein and 0.2 grams of carbohydrates; each kilogram of B contains 0.9 grams of protein and 0.1 grams of carbohydrates. There must be at least

A teacher takes daily attendance and enters grades for report cards. This would be best served by software managed at which level? A) District level. B) Classroom level. C) Statewide level. D) National level. I think the answer is B but would like a second

My daughter wants to know what is a life span of a clown fish? We've been researching but could not find the answer. Would appreciate any help. Thank you. Emmie According to this website, the life expectancy of a clown fish in a home aquarium is over 10

A tidal wave reaches low tide at 3:00AM and high tide at 3:00PM. The tide can rise and fall 10m from the sea level. If at low tide the water level is 2m above the seabed (bottom of the sea) a) determine an equation to model the sea level above the sea bed

A farm supply store carries 50lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for $3.75 per bag and sells them

A farm supply store carries 50lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for $3.75 per bag and sells them


A farm supply store carries 50lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for $3.75 per bag and sells them

n (level 0) = 1 n (level 1) = 4 n (level 2) = 13 n (level 3) = 27 what is the n level ? it means n of any level .. I need an equation, pls ?

patient on dialysis has a high level of urea, a high level of sodium and a low level of potassium in the blood. Why is the dialyzing solution prepared with a high level of potassium but no sodium or urea?

Say you make the following assumptions: 1. Afarmer lives on 1 hen per day for a year. (2.)1 hen eats 25 grasshoppers per day (3.)1,000 grasshoppers have a mass of 1 kg (4.) 1 grasshopper requires about 30g of soy beans per year (5.) 1 human requires about

1. ABC Feeds has two different types of cattle feed containing crude protein in the amount of 45% and 20% respectively. How many of each type must a feed lot manager mix together to obtain 10 000lbs of a mixture that is 25% protein? 2. Meg has a solution

What is the complement of: a) "The snake looks hungry." b) "The lizard seemed stunned." c) "Its skin is scaly." d) "Scales cover a snakes body." e) "John will feed Izzy." f) "We will photograph Mary." g) "It feels sticky." answers a) hungry b) stunned c)

The irreversible reaction 2A + B takes place in the gas phase in a constant temperature plug flow reactor. Reactant A and diluent gas are fed in equimolar ratio, and the conversion of A is 85 percent. If the molar feed rate of A is doubled, what is the

For this picnic, you need to feed at least 300 people. If you want to feed everyone, but still have equal numbers of buns and hot dogs, what is the minimum number of packages of buns and hot dogs you need, respectively? hot dogs= 10, buns=8

a 40cm diameter birthday cake can feed 4 people.How many people will a 80 cm diameter cake feed?

The water in fish tank has evaporated so it was 5/8 inch below the level it should be they added water and the water level went up 3/4 inch did the water level end up above or below where it should be


What degree of intensity and individualization does tier 1 instruction represent? A. Low level of individualization, specialized intensive instruction B. High level of individualization, specialized intensive instruction C. Low level of individualization,

Hello, can anyone help me answer this question: What is the result of a silent mutation at a) DNA level b) amino acid level c) protein level d) phenotype level Thank you.

Problem: A riding stable manager is planning a nutritional diet for 9 horses. The manager finds the table below in a guide about horse health. The cost of 1000 Calories of horse feed is $0.25. What is the cost per day to feed 9 horses? (Hint: First, try

The cost of providing a plate of lunch to a certain group of people is partly constant and partly inversely proportional to the number of people. If it costs #30 per plate to feed 40 people,find the cost per plate to feed 50 people.

1) tank 50 deep 2)discharge pump will empty tank at 250 gallons per minit 3)tank will at 100 gallons per minit 4)2floats will contor (m1) to fill tank set at 25feet 42feet 5)a float is set at 10feet for shut off for discharge pump 6)install pressure

Hearing levels or cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. Noise level is described as Low=under 88 decibels, Medium=8891 decibels, High=92^decibels. At a = .05, is the cockpit noise

In testing the independence of two variables described in a contingency table, determine the critical value of chisquare if the test is to be conducted at the a. á= 0.025 level and d f = 5 b. á = 0.05 level and d f = 8 c. á = 0.01 level and d f = 6 d.

We have "made up" organism's based on real ones like these 2. Chemosynthetic goldfish that convert pollution to food (autotrophs) 3. Aquatic humanoids whose main diet is aquawheat and basking sharks. They have fins instead of legs (heterotrophs) 4.

7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the

7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the


Describe the relationship between the respiratory and the cardiovascular systems! Doesnt the respiratory feed the cardiovascular with oxygen, and getting rid of CO2 and water? Doesnt the cardiovascular system feed the respiratory system with a fluid for

can a food chain have a quaternary consumer without having secondary or tertiary consumer

1. Approach level 2. On level 3. Beyond level (What is the meaning of each level? Would you explain that in the ability of students?)

Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 29 pounds of feed worth $0.47 per pound by mixing one kind worth $0.44 per pound with another worth $0.55 per pound. How many pounds of the cheaper kind should they use in the mix?

What is the scientific name ( genus and species level) of star fish, jelly fish, silk spider, mouse, and earth worm