« previous next »

Author Question: Which of the following is the smallest closed system? A) a cell B) an organism C (Read 654 times)

Hawke

  • Hero Member
  • *****
  • Posts: 679
on: Jun 10, 2013
Which of the following is the smallest closed system?
A) a cell
B) an organism
C) an ecosystem
D) Earth
E) the universe


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jun 11, 2013
It's most likely E. It makes sense given what's in the textbook.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Hawke

  • Hero Member
  • *****
  • Posts: 679
Reply #2 on: Jun 12, 2013
Thanks, and your suggestion was right.


« previous next »
 

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

A micrograph of the cell coat or glycocalyx of an animal cell. A micrograph of the cell coat or glycocalyx of an animal cell.
Plant cell water potential. Plant cell water potential.
digestive system digestive system
Disorders of the Cardiovascular System Cont. Disorders of the Cardiovascular System Cont.
Respiratory system Respiratory system
Muscular system and Cardiovascular system Muscular system and Cardiovascular system
Video: How do the different types of chromatography work? (No Audio)

For a complete list of videos, visit our video library