WorksheetsEnvironmental Science 2 Midterm
Total questions: 26
Worksheet time: 36mins
What does species diversity refer to in an ecosystem?
The number of different habitats within a particular area
The variety of species within a specific habitat
The genetic variation within a single species
All of the above
Which of the following is a primary cause of habitat loss?
Clear cutting forests
Climate change
Urbanization
All of the above
How does species diversity contribute to the stability of an ecosystem?
By ensuring rapid urban development
By increasing the dependency of species on a single food source
By making the ecosystem more resilient to environmental changes
By reducing the number of species in the ecosystem
What is an indicator of high biodiversity in an area?
A large number of identical species
A small number of habitats
A wide variety of species
Minimal genetic variation among species
Which of the following activities directly contributes to habitat loss?
Recycling
Deforestation
Conservation efforts
Scientific research
Why is habitat loss considered a major threat to biodiversity?
It increases the number of predators in an ecosystem.
It leads to a decrease in the number of species in an ecosystem.
It promotes genetic diversity among species.
It enhances the adaptability of species to new environments.
What role do keystone species play in maintaining species diversity?
They prevent any new species from entering the ecosystem.
They have no impact on species diversity.
They help in the urbanization of natural habitats.
They play a critical role in maintaining the structure of an ecosystem.
How can the introduction of an invasive species lead to habitat loss?
By enhancing the ecosystem's resilience to natural disasters
By increasing biodiversity through the addition of new species
By outcompeting native species for resources and space
By promoting genetic diversity among native species
Which of the following best describes the relationship between habitat loss and species extinction?
Habitat loss has no significant effect on species extinction.
Habitat loss is indirectly related to species extinction through climate change.
Habitat loss is a leading cause of species extinction.
Habitat loss increases biodiversity, which prevents species extinction.
Circle where an insect infestation happened.
What year did the population of Tokyo start to decline?
(a)
What is the primary function of the objective lens on a microscope?
To reflect light towards the eyepiece
To magnify the image of the specimen
To adjust the focus of the microscope
To hold the specimen in place
Draw an arrow to the eye lenses.
14-18.
Answer the questions below after watching the video
Where is the world's largest secure seed storage facility located?
Svalbard
Greenland
Antarctica
Sahara Desert
How many seed samples were lost in the Aleppo seed bank during the Syrian civil war?
About 148,000
About 100,000
About 50,000
About 200,000
Why is Svalbard considered an ideal location for the seed vault?
The presence of many similar facilities
Its proximity to major cities
Because of its remoteness and infrastructure
Due to its tropical climate
What natural feature helps maintain the seed vault's low temperatures?
Artificial cooling
Ocean currents
Geothermal heat
Permafrost
What year did melting permafrost seep into the vault?
2017
2018
2016
2015
In computing for the total magnification of a scanning objective lens, 4x is multiplied to 10x, from which lens did that 10x come from? (one word answer only)
(a)
What happens to the environment when a large forest area is cleared for industrial purposes?
Adds carbon dioxide to the air
Stabilizes the Soil
Increases Biodiversity
Makes the environment beautiful
While exploring a dense forest, a group of students is asked to identify 2 biotic factors. Which of the following would be considered biotic factors in this scenario?
Air and Temperature
Sand and Water
Trees and Squirrels
Rocks and Birds
22-25.
Answer the questions below after watching the video
What does biodiversity encompass?
Just the different habitats around the world
Only the variety of plants on Earth
The total variety of all life forms on Earth
Only the different species of animals
What has caused a reduction in biodiversity in the last 50 years?
Alien invasions
Meteor impacts
Human activities
Natural climate changes
By what percentage has the population of lions in Africa dropped?
80%
65%
45%
30%
How can we help increase biodiversity according to the video?
Ignoring the problem
Leaving it to scientists
By watching more documentaries
Following the advice on Our Planet and watching the series
Which statement best describes the predator-prey relationship displayed on this graph?
There is no relationship between the predator and prey.
When the prey population increases, the predator population decreases.
When the prey population increases, the predator population increases.
when the predator population increases, the prey population increases.
When death rate is equal to birth rate...
population increases
population decreases
population stays the same.
population rapidly increases then becomes stable
If a biologist uses a microscope with an eyepiece of 10x magnification and an objective lens of 5x, what is the total magnification observed?
(a)
What is the carrying capacity of the graph?
around 500
more than 800
less than 300
around 700
How did the Rapa Nui transport the statues around the island?
Pulled with logs, ropes and sweet potatoes
Bigfoot carried them
Who does the Moai represent?
Sasquatch
Kratos, the God of war
Why did the Rapa Nui population decrease?
They moved to Scottsdale, AZ
Deforestation and habitat destruction
They had no WiFi
