Models are simplified representations of of different complex systems. They also help to study very small or large objects.
Option B, D and E.
Explanation:
Models are very simplified representations of complex systems and organs or structures which are prepared to study those systems by scientists and normal people easily. Many structures of human body like cells or some tissues are very small in structure or microscopic in nature. So studying them are very hard without specific instruments which are not always available. Thus models are made to easily study those structures by scientists and even normal people and students.
first left (up) trachea
first left (down) diaphragm
right (up) bronchiole
right (down) alveolus
Answer:
Either A or B.. I Would most likely choose A but I'd assume either one
Explanation:
Because a population is the breeding in a specific area.. and Bald Eagles could travel distances from other while fish in a lake would be one area and they would most likely be breeding, as well as the tree one is in a given area, but they don't specifically breed so i'd assume A.
( Also I like your pfp JJK manga and anime is really good )
Organ System, Organ coll, tissue