Symbiosis
What are the three types of symbiotic relationships?
mutualism, commensalism, parasitism
Male bull sea lions fighting for beach master dominance and the first pick of female cows during mating season is an example of which symbiotic relationship?
Competition
What is the smallest level of organization in ecology?
Individual or organism.
Name one biotic and one abiotic factor in a desert ecosystem.
Biotic: Cactus; Abiotic: Sand.
Tapeworms are sometimes found in the small intestines of sheep. A tapeworm attaches to the intestinal wall using suckers and then absorbs nutrients from the sheep’s intestine.
Parasitism
Tapeworm - Benefits
Sheep - Harmed
A mountain lion eats a rabbit.
predator- prey or predation
Put these in order from smallest to largest: ecosystem, population, community.
Population, community, ecosystem.
What is an organism that lives on or in another organism and derives its nutrition from that organism?
parasite
________ is a close, long-term association between two or more species.
symbiosis
Rabbits and sheep both graze on shrubs, grasses, and other plants. The increase in the population of rabbits in a region may result in a shortage of plants for sheep to graze upon. After the increase of rabbits the relationship between sheep and rabbits will be __________.
in competition
What level of organization includes all the living organisms in a particular area?
Community.
What do arrows in a food web show? What is being transferred?
the transfer of energy
The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying.
commensalism
How are predation and parasitism different?
What is an ecosystem?
A system that includes all living (biotic) and non-living (abiotic) things in a particular area and their interactions.
Which area below is a community?
Area 1: trees, birds, rocks, sunlight, butterflies
Area 2: birds
Area 3: birds, butterflies, trees
Area 3
Give an example of commensalism and mutualism
remoras and sharks, birds and trees
bees and flowers, acacia trees and ants
How can the introduction of a new species (biotic factor) affect an ecosystem?
It can disrupt the balance, leading to competition, predation, or extinction of native species.
What is the difference between a community and an ecosystem?
Communities include only biotic factors, while ecosystems include both biotic factors and abiotic factors.
Define host.
the organisms that a parasite feeds off of