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FrozenT [24]
3 years ago
5

Protists with complex bodies covered with hairlike structures known as cilia are called

Biology
1 answer:
pogonyaev3 years ago
5 0
B. Protists with complex bodies covered with cilia are called Paramecium.
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The synthesis of nucleotides requires several amino acids. Sort each amino acid as a precursor in the synthesis of purines, pyri
Lapatulllka [165]

Answer:

Glycine is required for purines, aspartate for pyrimidines, glycine and aspartate for both purines and pyrimidines. The remaining amino acids are not required for the synthesis.

Explanation:

Nucleotides are the monomer for the synthesis of DNA and RNA. The two main class of nitrogenous bases are purines and pyrimidines. These nitrogenous bases require the amino acids as a precursor for their synthesis.

Glycine is the simplest amino acid and required for the synthesis of purines. Aspartate is required for the synthesis of pyrimidines. Glutamine and aspartate are required for the synthesis of both purines and pyrimidines. Lysine, leucine, alanine, histidine, methionine, tryptophan and alanine are not used as a precursor for the nucleotides.

4 0
3 years ago
In the Atlantic which part of the oceanic crust is younger​
shepuryov [24]

Answer:

Oceanic crust is  younger crust . Well, It is because, an oceanic crust is formed when a continental crust undergoes a big tension crack due to the forces generated inside the earth, which may be because of the magma dwelling inside.  As the crack becomes prominent, the continent is broken into the segments with a big oceanic basin kind of structure between them (This takes millions and millions of years). Sediments deposit in the basin and get stratified to form the oceanic crust.  This is the reason that oceanic crust is younger than the continental crust.

5 0
3 years ago
Read 2 more answers
Is cell wall an animal cell plant cell or both
MakcuM [25]

Answer:

Plant cells have a cell wall, as well as a cell membrane.

Explanation:

In plants, the cell wall surrounds a cell membrane. This gives the plant cell its unique or rectangular shape. animal cells simply have a cell membrane, but no cell wall.

6 0
3 years ago
What diseases is caused by a cold or flu?
Aleks [24]

Influenza (also known as flu) is a contagious respiratory illness caused by flu viruses. It can cause mild to severe illness, and at times can lead to death. Flu is different from a cold. Flu usually comes on suddenly.

3 0
3 years ago
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describe 2 observation of water that provide evidence that water molecules are attracted to one another
boyakko [2]

Answer:

water is polarized

(like attracts like)

seen in meniscus

Explanation:

8 0
3 years ago
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