This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is created due to the decomposition of falling biological debris and zooplankton activity? a. ... (Read 27 times)

notis

  • Hero Member
  • *****
  • Posts: 596
on: Aug 22, 2018

What is created due to the decomposition of falling biological debris and zooplankton activity?
  a. Bioluminescence
  b. Oxygen minimum zone
  c. Compensation depth
  d. Disphotic zone



Question 2

What Zooplankton is considered a keystone species?
  a. Ctenophores
  b. Meroplankton
  c. Pteropods
  d. Krill



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: B
The oxygen minimum zone is below the surface zone. Oxygen gets depleted by the animals there, but
is not replaced by photosynthesis. Information can be found in the section Zooplankton Consume
Primary Producers.



Answer to Question 2

ANS: D
Krill are considered the keystone of the Antarctic ecosystem. They are the food source for a
tremendous number of animals, including large whales. Information can be found in the section
Zooplankton Consume Primary Producers.



notis

  • Member
  • Posts: 596
Reply 2 on: Aug 22, 2018
Gracias!

ttt030911

  • Member
  • Posts: 315
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Extent of agricultural activity across the planet (data from Foley et al. 2005). Extent of agricultural activity across the planet (data from Foley et al. 2005).
Physical Activity Pyramid Physical Activity Pyramid
Daily Alertness Activity (1 of 2) Daily Alertness Activity (1 of 2)
Daily Alertness Activity (2 of 2) Daily Alertness Activity (2 of 2)
Activity of Cytotoxic T Cells Activity of Cytotoxic T Cells
Perception Activity Perception Activity
Video: Major Elements in Biological Molecules: Nucleic acids

For a complete list of videos, visit our video library