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Rzqust [24]
3 years ago
13

Which vitamin does the human skin synthesize from the Sun’s ultraviolet light?

Biology
1 answer:
ki77a [65]3 years ago
8 0
Vitamin D is the andwer
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How do you write 2-3 paragraphs on evolutionary history/advances from the monerans to protists to fungi?
Lyrx [107]

Kingdom Monera was the oldest kingdom of living organisms. The organisms in the kingdom were simple, single celled and their cellular organelles were not covered by membranes. Prokaryotic bacteria were the first known Monerans. However, scientists think that Monerans were evolved into more complex eukaryotic organisms (Protists) with the passage of time.  

But how did Monera (Prokaryotes) was evolved into Protista (Eukaryotes)?

  • Monerans to Protists

Protista are eukaryotes, unicellular or simple multicellular organisms.Many theories were proposed for this evolution, but one that makes most sense was endosymbiotic theory. According to this, the first eukaryotic cells were evolved when two prokaryotic cells existed in an endo-symbiotic relationship. Larger prokaryotic cells engulfed smaller prokaryotic cells. The smaller cells got shelter and nutrients from larger cells and both co-existed in a mutualistic relationship. Both cells eventually evolved into organelles and got never aparted. This is how more complex organisms’ protists were evolved from simple monerans. It was a gradual process and took millions of years.

  • Protists to Fungi

The earliest fungi were single-celled organisms that contain a flagella to move from one place to another. Recent studies indicate that fungi belong to a group of organisms which were evolved from protists over the course of time. These studies are based on the nucleotide sequence of fungi that matches to a large extent with old protists. It is estimates that fungi evolved 600 million years  or even before.


3 0
3 years ago
Why did identifying rock layers because of their fossils become important?
Stels [109]
Hello there.

Why did identifying rock layers because of their fossils become important?

It was the first indication that the layers were from different ages.
3 0
3 years ago
Read 2 more answers
Explain the goal of gene therapy.
saveliy_v [14]
Goal is to slow down or cure the genetic disease by repairing the damaged gene that caused the disease.
3 0
3 years ago
Read 2 more answers
What is confusion?? ??
yKpoI14uk [10]
<h2>♨ANSWER♥</h2>

Confusion is the inability to think as clearly or quickly as you normally do. You may feel disoriented and have difficulty paying attention, remembering, and making decisions. The major areas of the brain have one or more specific functions.

<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>

_♡_<em>mashi</em>_♡_

3 0
2 years ago
If the sequence of bases on the mrna codon is auu what would be the sequence of bases on the trna anticodon
Klio2033 [76]

Answer:

uaa

Explanation:

An anticodon is a trinucleotide sequence localized in the transport RNA (tRNA) that binds via complementary base pairing to the codon in the messenger RNA (mRNA) during protein synthesis (translation). Thus, the tRNA anticodon binds with its complementary three-letter mRNA codon during translation in order to add a specific amino acid to the growing protein. Generally, the anticodon sequence positions 34–36-nt of the tRNA that reads its cognate mRNA codon sequence via Watson–Crick base pairing.

8 0
3 years ago
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