« previous next »

Author Question: If the flow of energy in an arctic ecosystem goes through a simple food chain, p (Read 909 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Oct 27, 2013
If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, then which of the following could be true?
A) Polar bears can provide more food for humans than seals can.
B) The total biomass of the fish is lower than that of the seals.
C) Seal meat probably contains the highest concentrations of fat-soluble toxins.
D) Seal populations are larger than fish populations.
E) The fish can potentially provide more food for humans than the seal meat can.


plus1

  • Hero Member
  • *****
  • Posts: 676
Reply #1 on: Nov 3, 2013
I recall doing this last year, it's E, bye bye!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

penza

  • Hero Member
  • *****
  • Posts: 1,022
Reply #2 on: Sep 16, 2014
Thanks so much!


« previous next »
 

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Concentric double-pipe heat exchanger for co-current flow Concentric double-pipe heat exchanger for co-current flow
A radiator may be either a down-flow or a cross-flow type. A radiator may be either a down-flow or a cross-flow type.
Resonance transfer of energy in a light-harvesting complex Resonance transfer of energy in a light-harvesting complex
Food Assistance Programs in the United States Food Assistance Programs in the United States
Find the derivative by using the chain rule, question 2 Find the derivative by using the chain rule, question 2
Three polar bears investigate an American submarine that surfaced in ice-covered Arctic waters. Three polar bears investigate an American submarine that surfaced in ice-covered Arctic waters.
Video: Autonomic Nervous System Animation

For a complete list of videos, visit our video library