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
TEA [102]
3 years ago
9

Compare and contrast the chemically different layers of Earth’s interior.

Biology
1 answer:
Minchanka [31]3 years ago
4 0
They are all not plate tectonics
You might be interested in
Select all that apply: Which of the following affect(s) the half-life of a radioactive substance?
frutty [35]

Answer:

The correct answer is option A, the type of isotope

Explanation:

The half life of a radioactive substance is a constant value and thus it is not affected by the temperature, catalyst or mass of the substance.  Basically it is the time taken by a radioactive substance to reduce its mass by half of its actual value. Radioactive decay takes place only when the atomic nucleus becomes unstable and thus the isotope type is the only factor which affects the radioactive decay of any element.  

8 0
2 years ago
. Failure of negative-feedback mechanisms to maintain homeostasis. A)may produce disease.. B)occurs when blood pressure increase
worty [1.4K]
Basically all of the choices given are failure of negative feedback mechanisms to maintain homeostasis. The correct option among all the options that are given in the question is the last option or option "E". I hope that this is the answer you were looking for and it has come to your help.
6 0
3 years ago
Is small or large pieces of plastic worse for the environment
damaskus [11]
A larger piece of plastic waist is worse
4 0
2 years ago
What cell organelle stores water for plant cells
dimaraw [331]
Vacuoles store water in plants
4 0
3 years ago
Read 2 more answers
How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged
almond37 [142]

Answer/Explanation:

The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.

Imagine an organism exists that has only 2 nucleotides (<u><em>this is over 200,000x smaller than even the smallest bacterial genome</em></u>). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.

Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.

3 0
3 years ago
Other questions:
  • Help pls bio graph.
    12·1 answer
  • Whose system of classifying and naming organisms is still in use today?
    9·1 answer
  • In humans, what is the only homologous chromosome pair that isn't the same?
    5·1 answer
  • Which statement best describes the building? abiotic because it is made from rock biotic because it is made from rock abiotic be
    12·2 answers
  • Good morning ! Help me please
    10·1 answer
  • If I slept next to my Alexa all night, will it damage my brain a lot after doing this for a month?
    6·1 answer
  • What are the three main componets of dna molecule?
    10·2 answers
  • Quizlet It is found that many regulatory genes have been co-opted for the development of different structures, such as limbs or
    9·1 answer
  • Which of the following can not produce viable gametes? (assume 2n = 20) autotretaploids triploids trisomics allotetraploids dipl
    14·1 answer
  • Using the food web we’ve been working with, what should affect moose population growth?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!