The extraction of dna from saliva would be done by a a.)serologist b.)bioinformatics engineer c.)anthropologist d.)biochemist e.)forensic technician

B. Bioinformatics Engineer

serologist and forensic technician are wrong. its biochemist

Explanation:

just did the quiz and it says it in the lesson :

there is no stairs in bungalow

explanation:

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water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.