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
Yuki888 [10]
3 years ago
5

What is the top most layer of earth that is extremely dense and only somewhat thick

Biology
1 answer:
bonufazy [111]3 years ago
7 0

Answer:

pretty sure it's the mantle

You might be interested in
What are the common promoter elements found in eukaryotic genes, and how are they different from enhancer elements?
V125BC [204]

Answer:

In eukaryotic cells you find core and proximal promoters.

Promotors are specific DNA sequences where transcription factors (proteins) and RNA polymerase binds to initiate transcription. Promotors are located upstream the coding sequence

Core promoters are where RNA polymersae binds and proximal promoters are where transcription factors bind.

Enhancer elements are DNA sequences where transcription factors (proteins) bind to increase the rate of expresion of an specific gene. Enhancers can be located either upstream,  downstream or thousands of nucleotids away  from the of the coding region.

Explanation:

Promoters and enhancer are key elements for controling gene regulation. Transcription begins when chromatin rearranges from a condensed state to a accesible state, this allow to transcrition factors and RNA polymerase to  bind specif DNA sequences (promotors).  Proteins bind to enhancers , this complex develops a DNA loop, so that the protein that is bound to the enhancer interacts with the RNA polymersase. When this interaction is made, the activity of the RNA polymerase is increased.

7 0
3 years ago
The angle of reflection is the angle between the normal line and the
KatRina [158]

Answer:

Reflected ray

Explanation:

The angle between a reflected ray and the normal drawn at the point of incidence to a reflecting surface is the angle of reflection.

8 0
3 years ago
Suppose there was a bird that always sat on a horse’s back and ate the insects that would bite the horse. What term would descri
katovenus [111]

Answer: Mutualism

Explanation: The definition of mutualism states " interaction between two or more species where each species has a benefit". The bird is getting food from the insects and the horse is getting the insects removed. Both are benefited.

8 0
3 years ago
Assuming that other factors are equal, how are the birthrate and death rate
igor_vitrenko [27]

Answer:

In a stable population, if all the other factors are equal then the birth rate should be equal to the death rate in order to maintain the stability.

Explanation:

The birth rate is described as the number of births taking place in an area per year. Death rate is described as the number of deaths taking place in an area in a year.

In order to maintain a stable population, the birth rate should be equal to the death rate. If there are more number of births than the number of deaths, then it would mean more competition for resources like food, water etc.

5 0
3 years ago
What is a part of the central dogma? A.RNA is a single stranded molecule. B.DNA is used as a template to make RNA. C.RNA contain
arsen [322]
<span>"DNA is used as a template to make RNA" is a part of the central dogma of molecular biology.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these animals might you find in the pellet of the great grey owl of Alaska? Check all that apply.
    6·2 answers
  • Which pair of terms concerning the osmotic effect of a solution on red blood cells is mismatched?
    8·1 answer
  • The tropopause is _____.
    7·2 answers
  • What occurs when the number of molecules of a substance is equal in two areas? Answer correctly
    15·1 answer
  • 4. What technique would a scientist use to produce many copies of a<br> desired piece of DNA?||
    9·1 answer
  • Which type of anemia is a result of vitamin b12 deficiency?
    8·1 answer
  • A body cell is in the longest stage of its life cycle. The cell grows, synthesizing proteins and increasing in size. Eventually,
    10·1 answer
  • What is the first part of cell theory?​
    12·1 answer
  • When a litter of puppies is born, the pups will exhibit certain physical characteristics that can be found in one or both of the
    10·2 answers
  • Offspring resemble their parents<br> because of
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!