Correctly match each animal to its physical adaptation. 1. polar bear
2. beluga whale
3. turtle
4. monarch butterfly
5. duck
6. giraffe

A. veins filled with air
B. long neck
C. white fur
D. claws on front feet
E. webbed feet
F. thick layer of blubber

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

answer; 4 electrons;