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
In-s [12.5K]
3 years ago
8

Unlike the atmosphere today, the atmosphere 3.5 billion years ago did not contain...?

Biology
2 answers:
juin [17]3 years ago
4 0
Unlike the atmosphere today, the atmosphere 3.5 billion years ago did not contain... ozone
Brilliant_brown [7]3 years ago
3 0
CARBON MONOXIDE???? im only in middle school but that is my best guess
You might be interested in
What does excretion mean in science?
Dovator [93]
It means, process of eliminating waste matter..
3 0
3 years ago
An unstable elementary particle is known to decay
anzhelika [568]

Answer:

24.995 is most likely the answer

sorry if i'm wrong but yeah

7 0
2 years ago
Please help I will make brain list ​
KonstantinChe [14]

Answer:

light reflection

Explanation:

often seen by sunlight to windows

8 0
3 years ago
Read 2 more answers
which of the following is true of an enzyme?(2 point) 1. it's a protein 2. it's a catalyst 3. it binds to many different substan
astra-53 [7]
All of these four options are true for an enzyme. because an enzyme has all of these properties.
4 0
3 years ago
What is true about the lagging strand during DNA replication?
BlackZzzverrR [31]

There are not only one but two correct option, which are A and B.

DNA polymerases begin their synthesis at many points of initiation. Following the binding of specific proteins, the double helix opens to allow startup.


DNA synthesis begins on RNA / DNA primers consisting of primase and DNA polymerase a. The replication continues in one direction: in this sense one of the two strands of the DNA ("direct" strand) is traversed by the enzyme in the 3 '→ 5' direction, which allows the synthesis of another strand in the direction 5 '→ 3'. The DNA-ligases then provide the link between the different fragments of the new DNA.


The synthesis of the other strand ("delayed" strand) is more complex because the enzyme travels this strand from 5 '→ 3'. The primase and DNA polymerase α synthesize 30 nucleotide primers in front of the replication zone, and the DNA polymerase constructs small DNA fragments in the 5 '→ 3' direction (approximately 200 nucleotides; Okazaki). Ribonucleases destroy the RNA / DNA primers of the previous fragment and the fragments are then linked together by DNA ligase.

3 0
4 years ago
Other questions:
  • Which organelles of a cell possess their own DNA?
    6·1 answer
  • What happens when dilute acid is dropped onto carbonates?
    13·2 answers
  • What were two consequences of the French and Indian War? Include the Proclamation
    11·1 answer
  • Check the box next to the process or processes used by organism listed oak tree
    15·2 answers
  • Students in a science class visited four local ecosystems. The students observed the species present in each ecosystem and recor
    9·1 answer
  • Trees planted on hills keep lakes + streams from becoming muddy how?
    10·1 answer
  • Red-green colorblindness is an X-linked recessive trait. Neither John nor Ann is colorblind, but Ann’s father is colorblind. Wha
    12·2 answers
  • In cells, the production of proteins is handled by the ribosomes and endoplasmic reticulum, while the processing and packaging o
    10·2 answers
  • Coryza aedematosa is
    8·1 answer
  • PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!