Invasive species
Which would NOT be an advantage or edge that an invasive species might have in a new environment?
A- The ability to grow faster than their competitors
B- The presence of local species to feast on
C- The presence of predators in the area
D- The ability to crowd out competitors
C- The presence of predators in the area
Fill in the blanks:
Invasive species can be _____, insects, _______, or _________.
Plants, animals, or funguses.
Who or what is the "deadly traveler"?
A disease called smallpox that is passed through contact
How does smallpox spread?
Contact
Define encounter
to meet someone or something unexpectedly
Why was the cane toad introduced into Australia in 1935?
To kill pests in sugarcane fields
Which invasive species causes problems in wetlands and marshes in the US?
Nutria
Which is an effect of the Native Americans' encounter with Europeans in the 1500s?
A- The Native American population completely died out
B- The Native American population decreased
C- The Native American population increased
D- The Native American population remained the same
B- The Native American population decreased
Which detail helps you to understand what immunity is?
A- Smallpox is a deadly virus
B- The smallpox virus had existed in Europe for thousands of years
C- One theory is that the first appearance of the smallpox virus in the Americas happened in 1520
D- European explorers and colonists could be exposed to smallpox or carry the virus but not become sick with the disease
D- European explorers and colonists could be exposed to smallpox or carry the virus but not become sick with the disease
Define poisonous
containing a substance that can cause sickness or death
What effect have nutria had in the US?
They have had a harmful impact on the environment
Which is the most similar to an invasive species?
A- An organization that helps the needy
B- Politicians that make laws for a country
C- People that lie to get out of trouble (maybe for not doing their homework)
D- An army that attacks and captures a town or city
D- An army that attacks and captures a town or city
Why did the British give Native Americans blankets while they were at war with each other?
To infect them with smallpox
How do we think smallpox was introduced to the Americas?
A Spanish soldier in Mexico in 1520
Define theory
an idea that explains how something works or why something happens
Why does the author include the italicized words in the following excerpt?
"Non-native species (also known as exotic, alien, and non-indigenous) show up in new places all the time."
A- To give readers examples of different non-native species
B- To provide readers with alternative names for non-native species
C- To convince readers that non-native species are harmful
D- To describe where most non-native species are found
B- To provide readers with alternative names for non-native species
Why were the nutria originally introduced to the US in the early 1900s?
Fur farmers wanted to farm them for their fur
Why did the Europeans not die of smallpox too?
They had built up resistance/immunity because the disease had been around for thousands of years in Europe
How much of the Native American population was killed in the first half of the 1500s?
95%
Define invasive
tending to spread very quickly
When were honeybees introduced to the US?
1600s
Why are Zebra mussels a problem?
They out-compete local species, and they clog up water intake valves for factories and power plants etc.
How many people did Archaeologists estimate lived in the Americas prior to 1492?
30 - 50 Million
What percentage of Europeans who got smallpox survived the disease?
About 70%
Define elder
one having authority by virtue of age and experience; an aged person