Vocabulary
Define Abiotic and Biotic
Abiotic - Non-Living
Biotic - Living
In an ecosystem, would a rabbit be a producer, consumer or a decomposer?
A consumer.
Give an example of parasitism
Parasitism is a close relationship between two organisms where one organism, the parasite, lives on or inside the other organism, the host, and causes it some harm.
An example is:
- A tape worm living inside a human stomach. The tape worm steals nutrients from the human's stomach, and the human gets very sick
- A tick lives in the skin of a dog. The tick feeds on the dog's blood, and the dog is now at risk of getting many diseases from the tick
If the average air temperatures in the Arctic increased by 4˚C would there be an increase or decrease in mosquito populations?
Increase
Name 2 biotic and 2 abiotic factors
Abiotic (non-living): a chair, rocks, a glass bottle, etc..
Biotic (living): Grass, Trees, Bacteria, cats
Define "Biome"
a large geographical region characterized by distinct climate, vegetation, and animal life
Is a rose considered to be a producer, consumer, or decomposer
producer
Give an example of mutualism
Mutualism is a symbiotic relationship between two organisms where both individuals benefit from the interaction
An example is:
- Bees pollinate flowers and then bees collect nectar
- Clown fish and sea anemones -- the clown fish keeps the anemone free of parasites and provide them with nutrients, and the anemone provides the clown fish a safe space to hide from predators
In this list of animals. Which two can be both prey and predator?
fox, snake, possum, ants, rabbit
snake and possum
"A fungus wipes out a bat population, which allows the mosquito population to increase and spread disease to people."
Does this situationn involve mainly biotic or abiotic factors?
Biotic
Define "Symbiotic"
a close, long-term relationship between two different species where at least one organism benefits.
Commensalism, Mutualism, and Parasitism are all types of symbiotic relationships
In an ecosystem what would be an example of a decomposer?
A) bumble bee
B) daisy
C) mushroom
D) cat
C) mushroom
Give an example of commensalism
Commensalism is a relationship between two organisms where one benefits and the other does not benefit or harm.
An example is:
- A tree frog lives on a tree -- The frog has a shelter in the tree, and the tree is not harmed or helped by it
- Pilot fish swims with a shark -- The pilot fish eats the left over food that the shark doesn't eat, and the shark is not harmed or helped
Would a population typically stabilize or decline when the environment reaches its carrying capacity?
The population stabilizes.
"a flower is drawing water from soil so well that its seeds on the ground nearby cannot grow" - would this be an example of competition between organisms for an abiotic or biotic factor?
Abiotic
Define "Photosynthesis" and name one living thing that does this
The process by which green plants and certain other organisms transform light energy from the sun into chemical energy that other animals can get by eating them.
Example: Flower, Grass, Shrubs, etc...
What happens to energy in an ecosystem when it reaches the top of the food chain?
A) The energy flows back down the food chain
B) The energy transferred to the soil and recycled back to the producers.
B) The energy transferred to the soil and recycled back to the producers.
What is the difference between the words symbiotic and mutualism?
"Symbiotic" refers to any close relationship between two different species, while "mutualism" is a specific type of symbiotic relationship where both species benefit
Consider the following diagram:
Sun --> Grass --> Mouse --> Snake
What would happen if the mouse population decreased?
The grass population would increase and the snake population would decrease due to lack of food supply
"A tree is absorbing so much sunlight and water from the soil that nearby shrubs are unable to thrive." – Would this be an example of competition between organisms for an abiotic or biotic factor?
abiotic
Define "carnivore," "omnivore" and "herbivore" and name a species for each
Carnivore: an animal that eats only meat; Ex: Lions, Sharks, Eagles
Herbivore: an animal that eats only plants; Ex: cows, sheep, rabbits
Omnivore: an animal that eats both plants and animals; Ex: Bears, Humans, Racoons, Squirrels, Chickens
What happens to energy in an ecosystem when it reaches the top of the food chain?
the energy gets transferred to the soil and is recycled back to the consumers
Without bacteria, nothing on earth could live. This is true because of the role they play in ________.
a. Decomposition
b. evolution
c. genetics
d. causing disease
a. Decomposition
Consider the food chain:
Grass--> Mouse --> Snake --> Hawk
Label these appropriately as: primary consumer, tertiary consumer, secondary consumer and producer
grass is a producer, mouse is the primary consumer, snake is the secondary consumer and Hawk is the tertiary consumer.
"Two blue jays fight over a peanut" are they competing for an abiotic or biotic factor?
Biotic