Social factors can influence the evolution of a system. For example, when more women joined the work force, the need for quality child care rose. (a) Name two systems, and for each one list two social factors that have caused those systems to evolve. Discuss your answers with a partner. K/U (b) From your discussions, add one more system to your list and describe two social factors that caused it to evolve. K/U T/I

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.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )

c should be the answer