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
vlada-n [284]
3 years ago
9

Which of the following accurately reflects the beliefs on Earth's early history?

Biology
1 answer:
harina [27]3 years ago
3 0
The following statements accurately reflect the beliefs on Earth's early history:
B. Scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.

The following statements are incorrect:
A. Scientists believe that DNA may have existed before RNA - Scientists actually believe the opposite - RNA may have existed before DNA.
C. Scientists believe that microspheres nearly prevented the development of early life.
D. Scientists believe that oxygen was plentiful in the early atmosphere - again, scientists believed the opposite

You might be interested in
3. Suppose you are viewing a sample from a PURE culture and observe both red and purple cocci. What are the possible problems th
Scorpion4ik [409]

Answer:

The culture might not be stained properly or the culture might be too old.

Explanation:

Gram staining is done to differentiate between gram-positive and gram-negative bacteria according to the difference in their cell wall. In gram staining, the gram-positive bacteria appears violet and gram-negative bacteria appear pink in color.

Therefore if a pure culture contains have both red and purple cocci that it can be concluded that the gram stating was not done properly like too much destaining was done or too much safranin was used or maybe the culture is too old so that cell wall of some bacteria degrades.

7 0
3 years ago
If anyone could complete this timeline in order, left to right, that'd be much appreciated :)
Lady_Fox [76]

Explanation:

if anyone could complete this timeline in order, left to right, that'd be much appreciated :)

hope it is helpful to you

6 0
2 years ago
Read 2 more answers
Which type of cell must be affected by a mutation in order for the mutation to be maintained in the gene pool
Vedmedyk [2.9K]
Germ cell's I believe. These are cells that includes half your genome in order to reproduce.
7 0
3 years ago
The first step of the scientific method usually involves _______.
asambeis [7]

Answer:

b. developing a hypothesis

3 0
2 years ago
A food chain is represented below.
soldi70 [24.7K]
The answer is 4 chemical energy from the grass.
HAPPY NEW YEAR!
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following events can result in inheritable genetic variations in organisms?
    7·2 answers
  • Fruit flies are commonly used in genetic investigations that focus on traits passed from parents to offspring over several gener
    15·1 answer
  • What would happen if the cell membrane were not selectively permeable ? Support your response
    14·1 answer
  • What can I do to not fall asleep in class?
    12·1 answer
  • HELP ASAP WILL GIVE 100 POINTS AND WILL MARK FIRST-PERSON BRAINLIEST FOR ANSWERING ALL QUESTIONS.
    13·1 answer
  • How do these lizards adapt to its environment
    11·2 answers
  • 100 POINTS..!!
    12·2 answers
  • When does crossing over occur in meiosis
    6·1 answer
  • Lions (zebra-eaters) are _________.
    7·2 answers
  • B<br> H<br> C<br> G<br> E<br> F<br> Which organelle is labeled H?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!