WorksheetsEnvironmental Changes
Total questions: 18
Worksheet time: 9mins
Plants bending toward a window to get closer to the sun is ___________________.
phototropism
gravitropism
thigmotropism
chemitropism
Which type of seasonal change reduces the need an animal has food when resources limited in the winter?
resist
migration
tropism
hibernation
Which of the following is an example of long term environmental conditions changing?
Polar bears hibernating in the winter.
Cooler temperatures force birds to permanently move farther farther south.
Flowers going dormant.
No answer text provided.
A grassland is experiencing a drought. As a consequence, the mice population has decreased. What will a mice-eating mammal most likely do in response to this?
begin hibernation
stop hunting until it rains
migrate to a new area to find food
increase their population by having more babies
A pond ecosystem is experiencing eutrophication, which is harming the water. Which population is the most in danger from this change?
frog
fish
bird
snake
Eutrophication causes an increased amount of algae to build up in a lake which leads to more bacteria in the water. What will this cause?
decrease in oxygen levels
increase in water temperatures
removal of minerals
reduction of runoff
What is a possible cause for the number of dear to change between 1940-1950?
More grass grew in the summer
Loss of a natural predator
Severe drought on the tundra
increased number of babies born
Bats are active at night to avoid competition with other flying animals for insects. Animals that are active at night and sleep during the day are called _________?
hibernating animals
diurnal animals
nocturnal animals
herbivores
Select the answers that are methods of adapting to seasonal changes in the environment.
migration, hibernation, dormancy
producing food, dormancy, hibernation
producing energy, producing food, dormancy
hibernation, producing energy, migration
dormancy, hibernation, producing energy
Which is an example of a natural disaster that would threaten the survival of plants and animals in Virginia?
hurricane in August
snow in February
hot temperatures in July
rain in April
Select the answers that cause population size to increase or decrease.
a new species introduced to an ecosystem, natural disasters, migration
natural disasters, dormancy, hibernation, a new species introduced to an ecosystem
a new species introduced to an ecosystem, hibernation, dormancy
hibernation, natural disasters, dormancy
When the Australian wildfires occurred, what short-term effect did the ecosystem experience?
The trees grew back quick and the animals were not affected.
There was no effect on the ecosystem.
All of the plants died but the animal population increased.
Plants and/or animals relocated or died.
Plants experience __________ phototropism when they lean toward the light.
Positive
Negative
Plants experience __________ gravitropism when their stems move upward.
Negative
Positive
Plants experience __________ thigmotropism when they use a fence to help stabilize their stems.
Positive
Negative
Plants experience __________ gravitropism when their roots move towards the center of the earth.
Positive
Negative
Plants experience __________ hydrotropism when they move towards a water source.
Positive
Negative
Which change in the environment would most likely increase the ability of this animal to survive?
increase in Earth's temperature
introduction of a new predator
decrease in Earth's temperature
decrease in number of producers
