19.Compared with unpolluted water, the water in a lake polluted by sewage will have A. fewer microorganisms
C. more fish
B. more oxygen
D. more nitrogen compounds

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What part of the brain is highlighted in the diagram below?

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.