« previous next »

Author Question: An ecosystem is an example of a(n) _______________ system, because energy and matter are freely ... (Read 90 times)

shenderson6

  • Hero Member
  • *****
  • Posts: 573
on: Jul 13, 2018
An ecosystem is an example of a(n) _______________ system, because energy and matter are freely exchanged at its boundaries.
 
 
 
 Fill in the blank(s) with correct word

Question 2

Earth moves around the sun in a perfectly circular orbit.
 
 
 
 
  Indicate whether the statement is true or false


recede

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 13, 2018
Answer to Question 1

open

Answer to Question 2

F


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

The bicarbonate buffer system The bicarbonate buffer system
Interrelationships of the integumentary system with other body systems Interrelationships of the integumentary system with other body systems
La Niña events store energy La Niña events store energy
Urinary System: Facts, Functions & Diseases Urinary System: Facts, Functions & Diseases
Humans take in energy by eating food Humans take in energy by eating food
An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ... An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ...
Video: Decubitus Ulcer

For a complete list of videos, visit our video library