Please
Why do bears hibernate during the winter months?
Bears bypass winter when their food supply disappears to save energy.
What happens concerning the reduction of an ecosystem's habitat?
Reducing the habitat size of an ecosystem will reduce resources and biodiversity.
What is Eutrophication?
A new species of fish was introduced Virginia waters. The species is a very aggressive predatory fish, and reproduces quickly. It can also move from water source to water source over small areas of land. How will the introduction of this fish affect the competition of native fish in Virginia waters? More than one answer might be correct.
The species will compete with other predators for food in Virginia waters and prey could become endangered.
A land owner in the Blue Ridge Mountains decides to log four acres of his land. Which statement reveals how this action could threaten a species' survival?
Populations might not be able to find food, and therefore will have to relocate to survive.
In 1987, the rabbit population in this ecosystem became nonexistent. In order to survive and increase its members, the cougar population must —
find new prey
If the entire raccoon species in this ecosystem became extinct, and their main food source were frogs, what would happen to the frog population?
It would increase.
What is ecological succession?
The regular progression of species replacement in an environment
Identify three environmental impacts that deforestation has on South America
Loss of habitat for animals
Drives climate change
Soil erosion
This occurs when a previously existing ecosystem is re-established after a disturbance, like a fire, that has significantly altered it but not completely wiped it out.
Secondary Succession
What is phototropism?
Plants growing towards light
As the population of a species increases, name three things that would also have to increase in order for the species to thrive?
Space for shelter
Availability of food
Availability of water
In a given environment, what keeps the population from growing?
A limiting factor
A coyote population preys upon a mouse population in an ecosystem. Over time, humans begin to hunt the coyotes causing the population to decrease rapidly. Which statement correctly identifies how this decreasing coyote population affects the ecosystem?
The mouse population will begin to quickly rise
Carbon emissions decrease as populations increase, true or false.
Would a two day rain storm have a long lasting effectf on the population size of gray squirrels in a small forest?
NO
Which would most likely cause a rabbit population to increase?
Excess food, few predators and increased birth rates
If a species was endangered and consvervation efforts were in place, why would a researcher track the population of the species over a long period of time?
To determine if conservation efforts were effective
The ecosystem on the coast of Virginia Beach will likely experience the highest amount of disturbance from this man made structure
the construction of a new pier
What is the final, relatively stable stage of ecological succession, where the dominant plant and animal species are well-adapted to the specific environmental conditions of a location
climax community
The Camel spider prefers lizard prey, while the Banana spider favors bees and birds. In 2011, the lizard population within the spider's ecosystem diminished. What will most likely happen between the Camel and Banana spider populations?
Increased competition between the Camel and Banana spiders
The Potomac River was contaminated by an increase in fertilizer run-off. The fertilizer caused a growth of an algae bloom in the water. What effect will this growth have on the Potomac River?
Oxygen will be depleted from the water.
What is the initial colonization and development of an ecosystem on a newly formed or previously barren habitat, like volcanic rock or exposed glacial deposits, where no soil or previous life exists
Primary succession
Name 3 threats to biodiversity?
Habitat loss
Climate change
Pests and invasive species
Is this the last jeopardy we will play?
YES!!!!!!!