WorksheetsIMPACT OF VARIABLES ON POPULATION SIZE
Total questions: 13
Worksheet time: 7mins
A student grows four dandelion plants with different amounts of water. The table shows plants at day 10 and the amount of water each is given daily
Tallest plants got 8ml of water per day
Shortest plant received 12 ml water per day
Dandelion grow best with 10 ml of water per day
Dandelion grow best with 4 ml of water per day
Which two statements correctly describe an environments carrying capacity?
Changes if the climate of environment changes
it remains the same as long as the type of predators in environment do not change
It is determined by the number of different species found in the environment
If animal population is lower than the carrying capacity, it will have access to resources in the environment
The graph shows the trend in population sizes for snakes and frogs living in same ecosystem.
Frogs depend on snakes for food.
Snakes and frogs compete for food with one anther.
The environment can support more snakes than frogs.
The population of snakes increase with the increase in the frogs
An Arctic food web is shown.
Which type of relationship can be shown on a food web?
Organisms that are parasites to other organisms.
Organisms that benefit from living together.
Organisms that prey on other organismsms.
Organisms that compete for shelter.
Acorns are seeds produced by oak trees and one of the major food so for squirrels. Which change in the environment would impact its carrying capacity for squirrels?
It will increase if a new animals that eat acorn moved into the environment.
It would increase if more oak trees grew in the environment.
It would decrease if there were fewer predators to eat squirrels in the environments
It would decrease if there was cleaner water in the environment.
A tray of food in left out at room temperature, and pictures are taken at the beginning and one at end.
The apple and cheese are both covered in mold. The bread has no mold. Why is it on apple and cheese but not on the bread?
Type of mold that grows on apple and cheese is different than bread.
Type of mold grows on apple and cheese has not yet reached carrying capacity on those foods.
Temperature of bread is different than the apple and cheese cannot grow there.
Bread was not exposed to enough of the mold for the mold to grow on bread.
Which organism is the prey for the perch?
midge larve
algae
water seeds
pond snails
The percent of energy transferred to each level in energy pyramid is...
90%
10%
80%
20%
The abiotic features in picture are...
water and fish
water and phytoplankton
water and sun
water and zooplankton
The percentage of energy released from the energy pyramid is...
10%
40%
60%
90%
Hawk and desert fox are classified as...
predators and prey
relationship
apex predators
primary consumers
secondary consumers
large lizard and kangaroo rat relationship
predator and prey
competition
tertiary consumers
producers
Phytoplankton is classified as
herbivore
producer
primary consumer
consumer
