Shelby and Michaela are learning about organisms. Shelby says she is sometimes an autotroph because she makes her own food after school which is a bowl of cut fruit. How can Michaela prove to Shelby that she is not an autotroph?

What could she do to help Shelby investigate how an autotroph makes its own food?

Why do living things need water, food, and space to live?

the most reliable source of information.is wikipedia

3.2x10^7

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day