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mr_godi [17]
3 years ago
15

Lisa is working on a science project. Her task is to

Biology
1 answer:
densk [106]3 years ago
5 0

Answer:

The fluoride is what helps you avoid cavities

Explanation:

water fluoridation as safe and effective in preventing tooth decay for both children and adults

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Is there a difference between radial and spherical symmetry? If so, what is the difference?
allsm [11]

Yes, There is no spherical symmetry in biology. But is in Spherical

7 0
3 years ago
What evidence shows that biological molecules on earth form naturally?
Anestetic [448]

Explanation:

La siguiente entrada tiene como objetivo realizar una breve explicación sobre las moléculas biológicas  lipídos y carbohidratos, las cuales son muy diversas ya que están formadas por carbono, lo cual hace que puedan formar muchos tipos de enlaces. Esta capacidad permite que las moléculas orgánicas  adopten muchas formas complejas, como son las cadenas, las ramificaciones y los anillos.

Las moléculas biológicas son grandes polímeros que sintetizas para poder enlazarse con otras subunidades mucho mas pequeñas conocidos como monómeros. Las cadenas de subunidades estan unidas por enlaces covalentes los cuales se forman por deshidratación, estas cadenas pueden romperse por hidrólisis. La moléculas biologicas más importantes son los carbohidratos, lípidos, proteínas y ácidos nucleicos.

4 0
3 years ago
8. DNA is copied into mRNA during the process of ________________.
MAXImum [283]

question 8

DNA is copied into mRNA  during  the process of  <u>Transcription</u>

  • <u>  </u>Transcription  is the process by which  information  in the strand of DNA  is copied into   new  molecule  of  messenger  mRNA.
  • The mRNA   formed is a complimentary  to  DNA  strand   whereby replace   of  C with   G,  and  A  with U and T with  A.

 Question 9

Translation  occurs  in  the  ribosome ,  the  organelle  responsible  for  building  proteins.

  •    Ribosome   are responsible for protein synthesis.
  •  They receive  messenger RNA sent  from  the nucleus  and build protein.
  • translation    has  three  steps that is
  1.   initiation -  ribosome assemble  around the target  mRNA.
  2.  elongation- The tRNA transfer  amino acid  to  tRNA  corresponding to  the next codon.
  3. Three  phases of translation initiation  polymerase  bind  to DNA  strand  and move  along until the small ribosomal  subunit  binds to  DNA.
6 0
3 years ago
Why is a nutrient cycle on earth called closed system
anastassius [24]

Answer:

<em>The nutrient cycle </em><em>is nature's recycling system. All forms of recycling have feedback loops that use energy in the process of putting material resources back into use. </em><em>Recycling</em><em> in ecology is regulated to a large extent during the process of decomposition.</em><em> Ecosystems employ biodiversity</em><em> in the food webs that recycle natural materials, such as mineral nutrients, which includes water. </em><em>Recycling in natural systems</em><em> is one of the many ecosystem services that sustain and contribute to the </em><em>well-being</em><em> of human societies.</em>

<h2>Explanation:</h2>

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4 0
3 years ago
1
tangare [24]

Answer:

B. the way they are formed

Explanation:

3 0
3 years ago
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