Answer:
The correct answer is the first option which represent the structure of a nucleotide.
Explanation:
DNA double is formed by the attachment of deoxy ribonucleotides joined to one another by phosphodiester bond during the course of DNA replication.
DNA is a nucleic acid.As a result it is a macromolecule.The macromolecular structure of DNA consist of numerous deoxy ribonucleotides.
Answer:
1.It produces silk which is a high quality fibre
2.to destroy the gelatinious substance inside cocoon so as to obtain silk thread
3.To avoid it from hatching
4.they carry pollen grains while roaming plant to plant and help in cross pollination
If Anna Garcia had a problem with her brain, which is in her nervous system, then it can affect the the, which is in the circulatory system. Even if one body system doesn't seem relayed to another, they will still effect each other if there's a problem in one. Like, for example, the skeletal system relies on Annas urinary system to remove waste produced by bone cells; in return, the bones in Annas skeleton creates structure that protects your bladder and other urinary system organs. Annas circulatory system delivers oxygen-rich blood to Annas bones. Meanwhile, Annas bones are busy making new blood cells.
This information cannot be obtained from the text, and we need to access general knowledge: why carbon dioxide is harmful to the environment.
It is harmful, for example, because it is one of the greenhouse gases, that is a gas that traps the heat in the Earth's atmosphere and leads to a warming up of our planet (global warming). Earth's temperature should be balanced, because any changes can have catastrophic effects: warming of the planet leads to the melting of ice caps and can cause floods, for example
