What is the biggest animal in the world

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

The term used to describe a disease-causing microorganism isa. virus.b. infection.c. pathogen.d. microbe.e. bacterium.

Asap. this question is 100 points if you answer it question: describe the basic relationship between ocean depth and temperature seen in the graph