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

Author Question: The first molecules of RNA were probably made A) on the surfaces of clays or other minerals B) ... (Read 20 times)

Mollykgkg

  • Hero Member
  • *****
  • Posts: 529
on: Jul 27, 2018
The first molecules of RNA were probably made
 
  A) on the surfaces of clays or other minerals
  B) deep within the earth
  C) in the atmosphere
  D) in space and then transported to the Earth in meteorites

Question 2

If we say that a material is opaque to ultraviolet light, we mean that it
 
  A) absorbs ultraviolet light.
  B) emits ultraviolet light.
  C) transmits ultraviolet light.
  D) reflects ultraviolet light.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

swimkari

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Mollykgkg

  • Member
  • Posts: 529
Reply 2 on: Jul 27, 2018
:D TYSM

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Structures and properties of pigment molecules Structures and properties of pigment molecules
The fruits of DNA technology, made possible by bacterial genetics The fruits of DNA technology, made possible by bacterial genetics
Early in the twentieth century, when malnutrition was common, companies such as this one advertised Early in the twentieth century, when malnutrition was common, companies such as this one advertised
It may be difficult for patients to get the vital minerals they need from their diets, so ... It may be difficult for patients to get the vital minerals they need from their diets, so ...
Beer is made from the fermentation of yeast and the natural sugars from grains Beer is made from the fermentation of yeast and the natural sugars from grains
Chart showing average yearly dose of radiation from natural and human-made sources Chart showing average yearly dose of radiation from natural and human-made sources
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

For a complete list of videos, visit our video library