Exam (elaborations)
Chapter 56 Mastering Biology Questions and Answers Graded A+
- Course
- Institution
Chapter 56 Mastering Biology
[Show more]
Content preview
Chapter 56 Mastering BiologyFrom 1930 to 1939 fire ants spread inland about 60 miles from their point of introduction
in Mobile, Alabama. What was the cause of their spread over this distance? - answer a
natural spread
From 1940 to 1970 fire ants spread through many southern states, sometimes at a rate
of 100 miles in a year. What was the cause of their spread over this distance? - answer
being transported along with plants and soil
In 1958 federal law restricted the movement of soil and plants from areas where fire
ants were established. Why was this law unsuccessful in stopping the spread of fire ant
colonies? - answer People were unaware of the federal law and, when they moved,
transported plants bearing fire ant colonies; a single mated queen can be transported
without being noticed; and many states thought to be free of fire ant colonies already
had them. (the longest answer)
Techniques used, or are being considered for use, in controlling the spread of fire ants
include _____. - answer setting baits that kill the queen when they are carried back to
the nest, applying chemical powders that kill the colony, introducing a protist to infect
the fire ant queen and her eggs, and introducing a fly that lays eggs in fire ants so that
the eggs will hatch into larvae that eat their way into the ants' heads, which will then fall
off (the longest answer)
Which of the following organisms was/were introduced by humans into the United
States or its territories? - answerAll of the choices are correct
The single greatest current threat to biodiversity is _____. - answerhabitat destruction
The estimated density or number of individuals needed for a species to maintain or
increase its numbers in a region is the _____. - answerminimum viable population
(MVP)
The number of habitat types __________ when ecosystem diversity increases -
answerincreases
Low genetic diversity within a species _____________ the likelihood that the species
may go instinct - answerincreases
A human activity such as draining a wetland _______________ ecosystem diversity -
answerdescreases
extinction ____________ species diversity - answerdecreases
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
