Exam (elaborations)
Chapter 55 Mastering Biology Questions and Answers Solved
- Course
- Institution
Chapter 55 Mastering Biology
[Show more]
Content preview
Chapter 55 Mastering BiologyOn a global scale, energy _____ ecosystems whereas chemical elements _____
ecosystems. - answer flows through ... are recycled in
Consider this segment of a food web: Snails and grasshoppers eat pepper plants;
spiders eat grasshoppers; shrews eat snails and spiders; owls eat shrews. The shrew
occupies the trophic level(s) of _____. - answer secondary and tertiary consumers
The producers in aquatic ecosystems include organisms in which of the following
groups? - answer All of the above are correct
The relationship between biomass and primary productivity is that _____. - answer
primary productivity is the rate at which biomass is produced
If NEP is greater than zero then... - answer the forest is a carbon sin
If NEP is less than zero then... - answer the forest is a carbon source
NEP = GPP - RT where RT = - answer Ra + Rh
NEP = GPP - (Rh + Ra) where GPP = - answer NPP + Ra
NEP = ( _____+ Ra) - (Rh + ______) – answer NPP, Ra
NEP = _____ -Rh – answer NPP
Based on these data alone, identify the most appropriate statement about the impact
mountain pine beetle outbreaks may have on climate regulation. - answer These data
demonstrate that mountain pine beetle outbreaks can convert forest ecosystems from
carbon sinks to carbon sources. A forest that is a carbon source releases more CO2 to
the atmosphere than it absorbs, contributing to higher atmospheric CO2 concentrations
and an enhanced greenhouse gas effect.
Food web - answer Detritus - rotting log, dead animal
Primary producer - living maple leaves
primary consumer or decomposer - fungus, cricket, maggots
Secondary consumer - earthworm, millipede
Tertiary and secondary - alligator lizard, robin
Calculate the trophic efficiency from each trophic level to the next for the pyramid of
productivity (biomass pyramid) shown below. - answer14.9%, 10.6%, 12.0%
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83100 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now