Your respiratory system prevents harmful substances from entering the lungs by using: .Mucus produced in the trachea and bronchial tubes to keep air passages moist and aid in intercepting dust, bacteria and other substances; The sweeping motion of cilia (small hairs in the trachea) to keep air passages clean
Answer:
I believe it's C.) A compound is composed of two or more elements in a fixed ratio.
Explanation:
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Answer:
EtBr inserts between the stacked bases in the DNA double helix.
Explanation:
- EtBr is used for visualizing DNA bands as it fluoresces under the UV illumination.
- EtBr is an aromatic compound that is capable of inserting itself between the stacked bases of the DNA double helix.
- The hydrophobic environment around the base pairs where the EtBr intercalates is responsible for the fluorescence. As the EtBr molecule intercalates between these base pairs the cation of EtBr sheds the water molecules associated with it and this causes it to fluoresce under UV light as water is a quencher of fluorescence.
The zygote, a single cell, implants its self to the uterine wall and it developes into an embyro which is a cluster of cells.
The answer to your question is actually quite simple. If there was a sudden decrease of Fungi the environment would be filled with more dead things. Not just that, but it would also smell terribly. Just think of it like this: Fungi is basically like garbage collectors. They will recycle the stuff that you dont need and or want.