In the 1500's, Nicholas Copernicus introduced the Sun-centered model of the solar system. How did this model help scientists of the time better understand the solar system?

Which events are likely to be catastrophic to an ecosystem? select the three correct answers.a-hurricane.b-steady population growth.c-seasonal flooding.d-introducing of an aggressive invasive species.e-tsunami.

Which blood cell spend most of their time in the lymphatic system?

About __ of the mass of the cell is water