As you examined each specific epithelial tissue what were the general characteristics they possess?

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Explain why phospholipid molecules form a bilayer. (3 marks)

Identify the structures ! 20 points