The two membranes pull apart a little and create a small pocket or sack of air. As the developing bird grows, it breathes in oxygen from the air sack and exhales carbon dioxide. Several thousand microscopic pores all over the surface of the egg allow the CO2 to escape and fresh air to get in.
Please mark brainliest :)
Answer:
DNA is made up of molecules called nucleotides.
Explanation:
Answer:
Autonomic
Explanation:
<em>The autonomic nervous system is a section of the peripheral nervous system that specializes in the regulation of various body processes that requires no efforts. </em>
The system operates by collecting information from the external environment and the body of living organisms. It is further divided into 3 sub-sections according to their specialization namely; the sympathetic, the parasympathetic and the enteric nervous system
She should have called 911 so that the call would be on record and to get further advice on how to help him. She didn’t seem to ask him any questions about his health, medication he is taking or what happened. She could have injured him more by moving because she didn’t have the proper equipment to treat him nor transport him properly. She could have also injured her self by carrying him also she doesn’t know if he is in the right state of mind or if he has any weapons on him. Being a nurse, she should have know better.
There was a time when we were very physically active, but now we rely on devices to do most of our work. The changes in our behavioral patterns and adaptations that are caused by these technological advances could prove to be the primary driving forces behind the next stage of evolution for our species.
