Biotic Factors in Terrestrial Ecology

Biotic Factors in Terrestrial Ecology

by Sharronda Smith

Multiple Choice

A dichotomous key is used to....

• identify a species that has already been categorized and named.

• Identify only certain animal species.

• Identify a species that has never been seen before.

• Differentiate between two or more species.

Multiple Choice

A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?

• Juniper

• Pine

• Spruce

• Fir

Multiple Choice

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta

• Order Amblygygi

• Order Araneae

• Order Scorpiones

​Invasive Species

​Animals that have been

1. introduced to a new niche,

2. compete with the native species for resources

3. ​Win the competition against native species

4. Finally, take over the niche are an....​ INVASIVE SPECIES

​

​ex. Pythons in the Everglades.

Multiple Choice

The ecological role an organism performs in their specific environment is considered the organism's...

• Habitat

• Population

• Biome

• Niche

Multiple Choice

When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?

• Non-native plants are able to mutate rapidly

• Non-native  plants cause native animals to relocate

• Non-native plants are able to be used for medicine

• Non-native plants compete with native plants for resources

Multiple Choice

One organism hunts and eats another organism.

• predation

• mutualism

• carnivore

• parasitism

Multiple Choice

Honeybees feed on and pollinate clover and flowering plants native to the prairie grassland biomes of Texas. Which tropic level do they occupy?

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

Multiple Choice

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%

• 10%

• 100%

• 1000%

Multiple Choice

An animal that only feeds on plants is called

• Vegetarian

• Herbivore

• Carnivore

• Vegan

Multiple Choice

A primary consumer

• makes its own food

• eats other animals

• is a carnivore

• consumes the producer

Multiple Choice

A symbiotic relationship where both organisms benefit.

• mutualism

• commensalism

• parasitism

• predation

Multiple Choice

A symbiotic relationship where one organism benefits and the other is harmed.

• parasitism

• mutualism

• commensalism

• predation