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- Multiple ChoicePlease save your changes before editing any questions.
Which feature below is a biotic component of an ecosystem?
bacteria
nutrients
rocks
water
- Multiple ChoicePlease save your changes before editing any questions.
What term describes the sphere of the Earth where living organisms exist?
atmosphere
lithosphere
biosphere
hydrosphere
- Multiple ChoicePlease save your changes before editing any questions.
What natural process requires oxygen and sugars and produces carbon dioxide?
eutrophication
photosynthesis
cellular respiration
nitrogen fixation
- Multiple ChoicePlease save your changes before editing any questions.
Sustainability means:
using up a resource
using a resource wisely so that others can use it in the future
to keep on doing what we are doing today
to stop using all resources today so that others can use them in the future
- Multiple ChoicePlease save your changes before editing any questions.
Check all the human impacts that can negatively impact biodiversity of an ecosystem:
Polluting the water
Introducing an exotic species into an ecosystem
Planting trees
Deforestation (cutting down trees)
- Multiple ChoicePlease save your changes before editing any questions.
56 baby mice were produced and 40 of them died because they could not find a food source. Lack of a food source is defined as a(n):
Limiting factor
Carrying capacity
Bioaccumulation
Biomagnification
- Multiple ChoicePlease save your changes before editing any questions.
In the following food chain: Plant → Rabbit → Fox, which organism is an autotroph?
Plant
Rabbit
Fox
- Multiple ChoicePlease save your changes before editing any questions.
In the following food chain: Plant → Rabbit → Fox, which organism receives the least amount of energy?
Plant
Rabbit
Fox
- Multiple ChoicePlease save your changes before editing any questions.
In the following food chain: Plant → Rabbit → Fox, which organism would have the biggest pyramid of numbers?
Plant
Rabbit
Fox
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is a reservoir of carbon below?
Cellular respiration
Photosynthesis
Death and Decay
Fossils
- Multiple ChoicePlease save your changes before editing any questions.
A blue jay makes a nest in a tree. The symbiotic relationship between the blue jay and the tree is best described as:
Parasitism
Commensalism
Mutualism
Predation
- Multiple ChoicePlease save your changes before editing any questions.
Select all of the primary consumers in this food web:
Rabbits
Fox
Squirrel
Mouse