Which of the following is the most helpful for the environment?
A. Reusing
B. Recycling
C. Downcycling
D. Reducing

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 main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.

if you know your abc's you should be able to get your answer or just use google