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
Stolb23 [73]
3 years ago
12

Why do we not have many fossil records from the precambrian era?

Biology
2 answers:
maria [59]3 years ago
7 0
Most living parts didnt have bones they were single celled
Sergio [31]3 years ago
6 0
Most life-forms were single-celled, with no hard parts to fossilize.
You might be interested in
Organisms with prokaryotic cells are separated into two.
wolverine [178]

Prokaryotic organisms are separated into two domains or groups: Bacteria and Archaea.

<h3>What are prokaryotic organisms?</h3>

Prokaryotic organisms are those whose cells do not have a membrane that delimits the cell nucleus and, instead, present their genetic material dispersed in an area called the nucleoid.

<h3>Characteristics of prokaryotic organisms</h3>

  • Prokaryotic cells form unicellular living organisms, belonging to the Archaea and Bacteria domains, depending on the preferred biological classification.

  • The Bacteria domain groups the most primitive prokaryotic organisms of all, they are dedicated to various types of metabolic activity: photosynthesis, such as cyanobacteria (blue-green algae), the decomposition of organic matter, etc.

  • The Archaea domain groups the archaebacteria or archaea, prokaryotic organisms that exhibit certain similarities with eukaryotic life, exist in very specific and generally hostile habitats (leading an extremophile life).

Therefore, we can conclude that the two domains, bacteria and archaea, encompass the world of prokaryotic organisms, that is, those that lack a cell nucleus.

Learn more about prokaryotic organisms here: brainly.com/question/1056970

4 0
2 years ago
The function of pure lines: ?
MrRissso [65]

Answer:

The definition of a pure line is a result of inbreeding where animals or plants have certain characteristics that are the same through generations. An example of a pure line is the result of inbreeding of a certain flower to help it fight off diseases.

6 0
2 years ago
Thinking about the safety of yourself and your fellow classmates. Does the school have adequate safety measures in place? Is the
s344n2d4d5 [400]

Answer:

Yes it does for example the science room has the materials to be safe during school.No because there is still the covi going on and some students aren't taking it seriously.One concerne that I have is that if they need help with their studies their should be tutoring

3 0
3 years ago
What type of media is used to demonstrate oxygen requirements of microbes? blood agar thioglycollate sulfite polymyxin sulfadiaz
Alex73 [517]
The correct answer is thioglycollate.
3 0
3 years ago
1.) The difference in the brightness of two stars with the same surface temperature is attributable to their _____.
VMariaS [17]

Answers: 1 .The difference in the brightness of two stars with the same surface temperature is attributable to their sizes.( last choice)

2.Most responsible for the formation of a star is gravitational force.(second choice )

3. Blue ( last choice)

4.

A spinning neutron star that appears to give off radio wave pulses is called a pulsar ( third choice)

5.Greater redshifts in the spectra of galaxies indicate faster speeds ( first choice)

4 0
3 years ago
Other questions:
  • What is the benefit of groundnut in the body?
    15·1 answer
  • Which represents a deletion of the section of DNA shown here?
    6·1 answer
  • Millions of years ago, the Appalachian Mountains were towering, craggy mountains. Describe the processes that resulted in the lo
    5·2 answers
  • In sexual reproduction, what type of cell(s), haploid or diploid, do these organisms have ?
    8·1 answer
  • I'll GIVE YOU BRAINLIEST!!! A company develops a new weed-killing chemical. When the chemical is first used, it kills nearly all
    6·1 answer
  • Give examples of diseases caused by viruses
    14·2 answers
  • Rna contains the nitrogenous base ______ instead of ______, which is only found in dna.
    13·1 answer
  • Without energy, molecules tend to want to move from
    12·1 answer
  • HELP PLEASE WILL GIVE BRAINLY! <br><br> What is a complementary RNA strand to AGA?
    14·1 answer
  • Which of the following is not a characteristic of the DASH diet?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!