8) Identify which of the following terms brought controversies to the society and match them with their issues. a)genetic engineering in plants
b)complex inheritance
c)gene therapy
d)pedigree mapping
e)human genetic engineering

1) cause controversy in society because of patient deaths and scientists are not reporting all side effects.
2) is considered a moral and ethical controversy because some people believe that "tampering" with genetics is against their religion and some believe it is just inhumane and unfair to those being tested on and altered.

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.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.