1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tiny-mole [99]
3 years ago
8

Based on Miller's experiments, chemical evolution theory proposes what was the first genetic material?

Biology
1 answer:
slamgirl [31]3 years ago
4 0

Answer:

Explanation:

This is known as the RNA world hypothesis. Scientists favor RNA over DNA as the first genetic molecule for several reasons. Perhaps the most important is that RNA can, in addition to carrying information, act as a catalyst. ... A catalytic RNA could, potentially, catalyze a chemical reaction to copy itself.

You might be interested in
Give an example of two types of cells that never go through cell division once fully formed.
AnnyKZ [126]

Answer:

The two types of cells that never go through cell division once fully formed are nerve cells and muscle cells.

Explanation:

The nerve cells and the muscle cells not undergo cell division after formation, because they can never re grow or cannot be repaired once they are mature. We should take good care of it once they are matured. They just under division from being baby to teenagers after that they stop undergoing cell division. This is true for both elephants as well as human beings. This thing is also applicable in case of bones.

5 0
3 years ago
Define the word phytoplankton!
RSB [31]

Answer:

hello

Explanation:

Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems. 

have a nice day

3 0
3 years ago
Read 2 more answers
Because he is now better-informed, jack wants to cook healthier meals. which recommendation should he avoid?
m_a_m_a [10]
<span>There is so misinformation about staying away from carbohydrates. What Jack should realize is that everyone needs a balance of fats, about 20% of your calories, proteins, about 0.5 to 1.0 gram per body weight, then using a total calorie estimation, figure how many calories should come from carbohydrates. They really are important for energy.</span>
7 0
3 years ago
Which type of cell can become any type of tissue in an embryo, but not a placenta cell?
dmitriy555 [2]

The right answer is pluripotent

7 0
3 years ago
Carbon dioxide in the atmosphere traps heat. Scientists are concerned that too much carbon dioxide is being released into the ai
WITCHER [35]
Pollution control in the air
3 0
3 years ago
Other questions:
  • During the contraction of a vertebrate skeletal muscle fiber, calcium ions _____.
    8·1 answer
  • Which word equation summarizes the dehydration of a carbohydrate?
    12·1 answer
  • PLEASE HELP ASAP WILL MARK BRAINLIEST TO THE FIRST WHO ANSWERS FIRST CORRECTLY 30 PTS
    5·1 answer
  • I need help with this problem
    7·1 answer
  • PLEASE help me
    7·2 answers
  • The phylum Cycliophora was discovered in 1995. They are tiny organisms that live in large numbers on the outsides of the mouthpa
    11·1 answer
  • How do Vaccines Work?
    9·2 answers
  • If the number of photosynthetic organisms on Earth decreased drastically, which would happen as a result? Less water would be av
    14·1 answer
  • It wont let me type it in smh
    9·1 answer
  • Think about your hand and thumb for a minute. Think about all the things you can do with your thumb and hand, all the things you
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!