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 38 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
Great answer, keep it coming :)

  • Member
  • Posts:
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

A Mitochondrion Converts Energy from Fuel Molecules into ATP A Mitochondrion Converts Energy from Fuel Molecules into ATP
The Morris Adjustable Chair, designed by Philip Webb, made by Morris, Marshall, Faulkner & Co. The Morris Adjustable Chair, designed by Philip Webb, made by Morris, Marshall, Faulkner & Co.
A healthy diet is made up of well-balanced nutrients. A healthy diet is made up of well-balanced nutrients.
Liposomal amphotericin B: Drug molecules are embedded in the lipid bilayer. Liposomal amphotericin B: Drug molecules are embedded in the lipid bilayer.
Dipole Moments of some Molecules Dipole Moments of some Molecules
The profit, p(t), made at a fair depends on the price of the ticket, t. The profit is modelled ... The profit, p(t), made at a fair depends on the price of the ticket, t. The profit is modelled ...
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library