« previous next »

Author Question: What observation of extrasolar planetary systems provides strong confirmation of the condensation ... (Read 46 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
on: Jul 27, 2018
What observation of extrasolar planetary systems provides strong confirmation of the condensation theory?
 
  What will be an ideal response?

Question 2

Which observation(s) and/or experiment(s) demonstrate ways that the chemical building blocks of life (amino acids and DNA bases) could have originated on the early Earth?
 
  A) Amino acids and DNA bases form from simple chemical reactions in experiments simulating the early Earth atmosphere.
  B) These complex molecules have been found within meteorites.
  C) Experiments have shown that naturally occurring clays can catalyze the formation of RNA strands.
  D) All of the above


helenmarkerine

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 27, 2018
Answer to Question 1

Stars having compositions similar to that of the Sun are much more likely to have formed planets than stars that are poorer in metals.

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
Organ Systems Organ Systems
EHR systems enable providers to view patient records across organizations. EHR systems enable providers to view patient records across organizations.
Commonly Used Equivalents for the Apothecary and Metric Systems Cont Commonly Used Equivalents for the Apothecary and Metric Systems Cont
Free Energy Rules: The Second Law in Open Systems Free Energy Rules: The Second Law in Open Systems
Beak size in finches during dry years increases because of strong selection Beak size in finches during dry years increases because of strong selection
Video: Wound Cultures

For a complete list of videos, visit our video library