Only eukaryotes contain upper three but all cells contain "Contractile Vacuoles"
In short, Your Answer would be Option D
Hope this helps!
Birds and reptiles lay amniotic eggs. They consist of a shell, embryonic membranes, and the embryo.
The answer is 99.
Amino acids <span>contain a carboxyl group (carbon-containing) and an amino group (nitrogen containing). Proteins are made by forming peptide bonds between the carboxyl and amino group of amino acids.
</span>If a protein is made of 100 amino acids, that means there are 99 peptide bonds (because the last, 100th amino acid will not bind the next (101st) amino acid). For each peptide bond that is created, one oxygen atom and two hydrogen atoms are taken. Therefore, one water molecule is created for each peptide bond. If there are 99 peptide bonds, 99 water molecules are created.
You can use a plotting compass or iron filings to detect a magnetic field:
1.put a piece of paper over a magnet (this stops the iron filings sticking to the magnet)
2. sprinkle iron filings onto the paper
3.gently tap the paper to spread the filings out
4.observe and record the results
Answer:
Nitrogen
Explanation:element found in all organic compounds carbon
element found in proteins but not carbohydrates or lipids nitrogen
three parts of a nucleotide phosphate, sugar, base
element found in nucleic acids, but not proteins, carbs, or lipids phosphorus
