Answer:
Q2->They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.
Q3->Because their outermost orbit is complete. In Mendeleev's original periodic table there was no place reserved for noble gas. They were discovered in end of 19th century. So Mendeleev created zero group without disturbing original periodic table.
Explanation:
Answer:
Explanation:
The thoracic cavity is the anterior ventral body cavity found within the rib cage in the torso. It houses the primary organs of the cardiovascular and respiratory systems, such as the heart and lungs, but also includes organs from other systems, such as the esophagus and the thymus gland.
"Scarus frenatus" I think
Answer:
The correct option is D. Amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between DNA and proteins.
Explanation:
Nitrogen is an active constituent of amino acids which make up proteins. Nitrogen is also an active constituent of the nitrogenous bases which make up an organism's DNA.
Phosphorus is actively present in the DNA but amino acids lack phosphorus.
Our body is actively made up of DNA and proteins. If the nitrogen was radioactively labelled, the experimental results would be wrong as proteins also have nitrogen in them.
Pistil T<u>he female organs of a flower where the ovules are.</u>
Sepal<u> Protects the flower </u>or encase the developing flower.
Anther <u>The name for the male part of the flower</u>
Filament <u>Holds up the anther</u>
Stamen <u>Creates the pollen and sends to the stigma </u>
Petal <u>Attracts pollinators</u>
Ovary <u>Holds up the stigma </u>
Ovule <u>Contains the embryo </u>
Stigma <u>The sticky part of the flower that collects pollen </u>
Style <u>Female part of the flower </u>
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<em>I hope this helps..... i tryed my best!</em>
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