Scientists are able to manipulate dna within the cells of plants, animals, and other organisms to ensure that certain advantageous traits will appear and be passed on, or that certain harmful trails are eliminated. what is the term for this process

The correct answer will be- genetic engineering

Explanation:

Genetic engineering is a group of techniques employed to manipulate the DNA of the organisms which can help regulate the phenotype of the organism.

The genetic engineering aims at selecting the desired trait to be passed on to the progenies eliminating the harmful traits so as to benefit the organisms.  The scientist selects the genes of the trait and then clone it to introduce it to the species.

Since the scientist can select the desired trait through techniques and manipulates the DNA therefore genetic engineering is the correct answer.

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.

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.