Luis by five.
6.
on a topographic map, when the contour lines form a "V" pointing uphill, usually
with a line representing a creek or river at the center of the "V", it indicates a

the answer is

c. parental

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.