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Lubov Fominskaja [6]
3 years ago
11

Why does the head of a developing foetus grow much faster than the other parts of the body ?

Biology
1 answer:
xxMikexx [17]3 years ago
7 0
 the brain has to grow it happens because of the nervous system 
1.The heart is Beating 2. It is kicking
A baby is safe in the womb because it is well insulated and designed as the perfect baby carrier
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I will give you brainest plz help!!!
Lemur [1.5K]
It’s A

TAT CAC ATA TTG CCA
5 0
2 years ago
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Epigenetics refers to a special kind of hereditary mechanism. Epigenetic changes do not change the DNA nucleotide sequence, yet
OlgaM077 [116]

Answer:

Histone acetylation or DNA methylation.

Explanation:

The epigenetics may be defined as the genetic phenomena that might cause mutation in the organism's genome. The DNA sequence of the organisms do not get changed in epigenetics.

This phenomena is limited whether the gene is herited from the mother ot the father. The phenomena like acetylation of histones increase the gene expression. The DNA methylation and histone deacetylation at specific residues reduces the gene expression.

Thus, the answer is histone acetylation or DNA methylation.

5 0
3 years ago
Describe the direction of DNA replication. Why is that important?
Sever21 [200]

Answer:

DNA replication is the process by that DNA make a copy to the cell division.

Explanation:

  • DNA replication is the double structure to the DNA molecule,it is biological process.
  • DNA replication molecule the serve that template for the production to referred conservative replication.
  • DNA replication occurs living the biological property of division and they performed complementary stand.
  • DNA replication to that begin the specific location and origins in the genome, and growing from the origin.
  • DNA replication is performed to the outside and artificially to the cell,in the DNA molecule.
  • DNA replication is single strand by the DNA chain of nucleotide function, DNA contain the sugar .
  • DNA replication is the basis of single strand to 3 prime and 5 prime  end, these refer to the carbon atom in the chain attaches.
  • DNA replication allow the strand to the one another strand to used in partner strand.
  • DNA replication is to matched in the template strand at one time with the creation of bonds,they high energy bonds.  

6 0
2 years ago
Explain the difference between sexual reproduction and asexual reproduction. Explain either an advantage or disadvantage for
ira [324]

In asexual reproduction, reproductive organs aren't used but they're used.

advantage of sexual- A lot of genetic variation. since they have DNA of two parents. they can survive more and adapt more.

disadvantage of asexual- diversity is limited. Since the organism only gets the DNA of one parent, they wouldn't be able to really survive if something happened.They would easily be extinct.

Sorry I can't really cone up with better words but I hope you get the idea. it all comes down to natural selection really if you've learned about it. Hope it helped!!!

5 0
2 years ago
Use an example from nature to explain how natural selection causes populations to change as their environment change include the
ivanzaharov [21]

Answer:

<u><em>Galapagos finches</em></u><u> have various beak sizes that make foraging for food more successful.</u>

Explanation:

Organisms evolve over time due to changes in their genome. These are pontaneous, and occur in DNA at random. These changes are called mutations and form alleles or different forms of a gene.

Over time within a population, the number alleles increase the variation of the population. These variants may confer specific traits within an individual, that may confer a biological advantage.

Thus, the trait may make the organisms more capable of obtaining food, shelter a mate etc. or ensure survival, i.e. they are able to pass on their genes to the next generation.

5 0
2 years ago
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