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
Mekhanik [1.2K]
3 years ago
9

22 (101 HC) Why have none of the competing hypotheses about the origin of life on Earth been developed into a scientific theory?

2 points)
Biology
1 answer:
Margaret [11]3 years ago
5 0
Because you cannot test it or observe it.

A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment. 
You might be interested in
What is an example of a stimulus and a response that humans exhibit? Can a similar behavior be seen in any other organisms?
Sedaia [141]
Common examples of this would be if you place your hand in extremely warm or cold water, and an immediate response of pulling out of the water or any fluid, is an example of this extreme response, other responses are what is done in everyday, like being thirsty or hungry etc.

These behaviours are shared by all organisms even the most simple ones.
6 0
3 years ago
15. If a person feels pressure on her bladder, then she is experiencing -
Nutka1998 [239]
D to release external waste.
6 0
3 years ago
Read 2 more answers
What happens to rainwater that falls on land?
Serga [27]
Well there are three reasons
it drains into rivers, streams, etc. or
 it seeps into soil and gather underground as ground-water
or
falls into high mountains and freeze and in the summer it will melt and flows into the rivers
4 0
3 years ago
Read 2 more answers
Help! plz hurry...Will mark brainliest...Begginers accepted ;)
goldfiish [28.3K]
I'm thinking either the first or second answer. Sorry if this doesn't help.<span />
8 0
3 years ago
What is the median of the following numbers 3 2 9 12 6 8 1 (In science)
Sindrei [870]
Median is the number in the middle....
1 2 3 6 8 9 12 .....so it's 6
8 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body’s cells. Which organe
    15·2 answers
  • What must be considered when determining time of death?
    7·1 answer
  • How does a newborn animal know exactly what to do the moment its born
    11·1 answer
  • The assisted transport of a molecule across the cell membrane without an expenditure of energy is known as what?a. Diffusion b.
    8·1 answer
  • What is the function of a raphide crystal?
    15·2 answers
  • Responding to the environment by maintaining a stable internal environment despite changing external conditions is
    7·1 answer
  • Please help me answer asap
    14·1 answer
  • Why is it important for DNA to replicate during interphase, before mitosis
    10·1 answer
  • How is an ectotherm most likely to maintain homeostasis during hot weather?
    10·1 answer
  • h u m m HELP A GIRL OUT "are finches with very small, medium, or very large beaks most likely to survive in times of normal rain
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!