Which statement is best supported by the image? The birds are close together so they have a better chance of finding mates and increasing their reproductive success.
The birds are part of a eusocial society so they have a better chance of finding mates and increasing their reproductive success.
The birds are aerodynamically efficient so they can use the air around them to reduce the energy used to fly.
The birds are part of a eusocial society so they can use the air around them to reduce the energy used to fly.

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 correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,