Que propiedades de las ondas se aplican en la ecografías y en la ecolocalizacion de los murcielagos

What is common about these molecules? a.their atoms are held together by covalent bonds. b.they are all made up of the same two atoms. c.their atoms are held together by ionic bonds. d.they are all made up of oxygen atoms only.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent