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
Alexus [3.1K]
3 years ago
15

Why is it difficult for scientist to find fossils from the pre-Cambrian period

Biology
1 answer:
mojhsa [17]3 years ago
5 0
Because Precambrian rocks are in short supply, hence fossil evidence is harder to find.they only discovers sections of some Precambrian rocks there were no bones or shells to be permineralized.
You might be interested in
BEST GETS BRAINLYEST
gavmur [86]

Answer:

carbon dioxide, water, and sunlight

Explanation:

glucose is what is created to feed the plant because of the three answers :)

hope this helped

5 0
2 years ago
Read 2 more answers
What is true of sand dunes? A) they are built by waves B) they are made by rivers cutting through land C) they are built by wate
snow_lady [41]

Answer:

its d I'm pretty sure.....

8 0
3 years ago
The food source that is produced during photosynthesis is
jek_recluse [69]

Answer:

A cause or starting point the source of a rumor. 2 : the beginning of a stream of water the source of the Nile River. 3 : someone or something that supplies information a reference source. 4 : someone or something that provides what is needed a source of supplies a source of strength.

3 0
3 years ago
For a species with a diploid number of 26, indicate how many chromosomes will be present in the somatic nuclei of individuals th
zhuklara [117]

Answer:

<h2>Haploid=13</h2><h2>triploid=39 </h2><h2>tetraploid=52</h2><h2>trisomic=14 </h2><h2>monosomic=12</h2>

Explanation:

Given;

A species with a diploid number of 26,  so 26= 2n ( a diploid cell),

so in haploid condition, chromosome number becomes half (13 in this case). triplod is when 2n + n, and 2n +2n ( tetploid). Trisomy and monosomy is the addition or deletion of a sinlge chromosome of a sinlge set  .

Haploid=13, one chromosome from each pair of chromosome set,

triploid=39 (13× 3); diploid+ n( 3n)

tetraploid=52 (13× 4) 4n

trisomic=14 (13+1) ; n+1

monosomic=12 (13-1); n-1

7 0
2 years ago
In plant, cell that transport water against the force of gravity are found to contain many more mitochondria than do some other
Anna [14]
For this question I'm not too sure what you're asking because cells that transport water are basically xylem cells and these cells are hollow with nothing in them, and they transport water against gravity because of transpiration pull, capillary action and root pressure.
The cells that I know of with many mitochondria for transport would be the phloem so that the mitochondria can carry out cellular respiration to release energy for the translocation of sucrose.
4 0
3 years ago
Other questions:
  • On a trip to the beach, Jacob noticed many signs that read "Keep off dunes." His mother told him that walking or digging on the
    5·1 answer
  • A parking lot paved with asphalt is abandoned describe the parking lot 5 years after it's abandoned
    8·1 answer
  • Explain why the cell membrane is said to be semi-permeable?
    10·1 answer
  • 21) Some cells produce and secrete high levels of digestive proteins. What organelle would you expect to be abundant (more than
    15·1 answer
  • according to myplate, food choices from the grain group should includeA. an equal amount of whole grain and refined grain produc
    6·1 answer
  • In a certain species of rabbits, black coat color is dominant over brown coat color. What is the probability of producing a rabb
    8·1 answer
  • Need help on checking my answers! The ones circled in yellow are the ones that I believe the answers are. Please and thank you (
    13·2 answers
  • Question 3<br> Tissues working together to perform specialized functions are called -
    9·1 answer
  • The single-celled paramecium illustrates an important characteristic of life. That is
    5·1 answer
  • A structure has these features:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!