Question is incomplete i have added complete question in ask for detail section and at the end of this question.
Answer:
b. using negative feedback to decrease blood glucose levels
Explanation:
When the level of glucose increases in the blood and become higher than the normal level a negative feedback mechanism is initiated under the control of hypothalamus. which increase the metabolism of excessive glucose level present in blood and hence results in decrease or normalization of glucose level in blood.
Reference: Mayer, Jean. "Glucostatic mechanism of regulation of food intake." New England Journal of Medicine 249.1 (1953): 13-16.
Complete question
Which method best describes how an organism regulates blood glucose levels after consumption of a large meal?
a. using negative feedback to increase blood glucose levels
b. using negative feedback to decrease blood glucose levels
c. using positive feedback to increase blood glucose levels
d. using positive feedback to decrease blood glucose levels
It's phase contrast microscopy
Because you need to contrast to see the specimen
The chloroplasts carry out photosynthesis
