When birds mingrate into or out of a defined population and mate with birds from another population. The existing pool of genes may be altered migration can increase or decrease gene frequencies in population.. A: greater genetic variation which may enhance chances of survival
B: less genetic variation which will not influence chances of survival
C; selective breeding which may enhance chances of survival
D: natural selection which will not influence chances of survival

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by