Question

question 4
at what levels of life do ecologists work? choose all that apply!
□ population
□ ecosystem
□ organism
□ community
question 5
which of the main types of ecosystems is the most common?
○ freshwater
○ terrestrial
○ oceans

Explanation:

Question 4

Ecologists study interactions at various life levels. Population (group of same species), Ecosystem (community + environment), Organism (individual), and Community (different species in area) are all levels ecologists work at.

Oceans cover a large portion of Earth's surface (about 71%), so ocean ecosystems are the most common among main ecosystem types (freshwater, terrestrial, oceans).

Answer:

Population, Ecosystem, Organism, Community

Question 5