Class Notes (834,037)
United States (323,615)
Biology (246)
BIO 121 (112)
Lecture

BIO 121, October 2nd

2 Pages
125 Views
Unlock Document

Department
Biology
Course
BIO 121
Professor
Jason Wiles
Semester
Fall

Description
BIO 121, Class Notes - October 2nd Solar Energy • Less than one billionth of the sun’s total energy reaches Earth’s outer atmosphere • Thirty percent is reflected back to space immediately • Less than one percent drives the wind and ocean currents • 0.02 percent captured by photosynthesis • Twenty-three percent runs the hydrological cycle • Fourty-seven percent is absorbed by the atmosphere • All solar energy is ultimately re-radiated to space as heat Energy One-way Flow • Energy from sun goes through a one way flow chart • First Trophic Level: Producers, plants • Second Trophic Level: Primary consumers, mouse • Third Trophic Level: Secondary consumers, snake • Fourth Trophic Level: Tertiary consumers, hawk • Decomposers Materials in Ecosystems • Cycle and recycle between organisms and the abiotic environment • Sun goes one way, recycling will be used over and over again EX. Carbon Cycle Energy flows one way through the system back out to the universe • Tree of Life • All living things are related via common ancestry Bacteria • Bacteria include the vast majority of prokaryotes of which most people are aware •
More Less

Related notes for BIO 121

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit