What are the parts of the end of a neuron cell

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.

The arrows in the illustration point to

How much does one sucrose molecule weigh in grams?