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
MA_775_DIABLO [31]
3 years ago
13

Which best characterizes the precambrian era?

Biology
1 answer:
natali 33 [55]3 years ago
5 0
I'd say that the answer is b.
You might be interested in
Immune system cells that pursue and destroy diseased body cells are called what?
Aneli [31]
The cell that destroy infected body cells are Cytotoxic T Cells.
5 0
3 years ago
Which of the following describes how polluted water sources would most likely affect one’s personal health?
Bogdan [553]
I think the correct answer from the choices listed above is the last option. Polluted water sources would most likely affect one’s personal health since p<span>athogens would invade the body and cause disease, such as giardia. Pathogens would go with the water we take in our body and would disturb the processes inside causing illnesses.</span>
8 0
3 years ago
Read 2 more answers
Why do many RNA viruses commonly demostrate antigen drift?​
kvasek [131]

Answer:

:D

Explanation:

4 0
3 years ago
Will pushing on a car always change the car's mechanical energy?
Helga [31]
No! It actually does not, regardless of some beliefs.


I hope this helps! Please give brainliest if possible. ^^
6 0
4 years ago
Why is the dark cycle called a cycle?
Anestetic [448]
The Calvin cycle is called the dark cycle because it does not require light to proceed. Unlike light reactions, the Calvin cycle is a light-independent reaction, which means it can and will occur in the dark as well as the light. The Calvin cycle is called the dark cycle because it does not require light to proceed.

hope this helps :p
5 0
4 years ago
Other questions:
  • "why were pea plants a good choice for mendel's experiments?"
    12·1 answer
  • Select all that apply.
    9·2 answers
  • Why is the greenhouse effect on earth not as drastic as on venus?
    6·1 answer
  • A particular plant species has numerous fruits and no visible seeds. Which of the following could it be? . A.Pteridophyta . B.An
    5·1 answer
  • Why do you think that the evolutionary history of life is different from the accounts found in religious books ?
    5·1 answer
  • The explosive chemical nitroglycerine is also a drug given to dilate the blood vessels of patients suffering from arterioscleros
    13·2 answers
  • A volcano in Washington State erupts and the ash covers a forest. Forest rangers come in and plant hardwood trees. Should the ra
    15·1 answer
  • What cell structure allows the passage of oxygen to it's environment?
    5·1 answer
  • A comet has an orbit size of 3.5 AU &amp; its orbit time is 6.54 years. T² = 42.875 years. What does R³ equal?
    7·2 answers
  • What is the location of the stem where the leaf connects
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!