Symbiotic Relationships
Mutualism is a relationship where both species ____.
benefit
Name one essential component of an organism’s habitat.
space, water, food, or shelter
The variety of species within an ecosystem is known as _____.
species richness
Primary succession begins on bare _____.
rock
The term _____ describes how different squirrel species can share resources in the same forest.
niche
In predation, one species benefits, and the other is _____.
harmed or killed
What type of relationship does a keystone species have with its ecosystem?
a greater-than-expected impact
Variation within a single species is called _____ diversity.
genetic diversity
Secondary succession follows an event where _____ is already present.
soil
Predation can reduce competition by controlling _____.
population sizes
A relationship where one species benefits at the expense of another, without killing it, is called _____.
parasitism
When one species affects the survival of multiple others, it is often referred to as a _____ species.
keystone
A high level of different species evenly spread across an area demonstrates _____.
species evenness
Pioneer species are important in primary succession because they _____.
break down rocks to form soil
Name an example of a predator-prey relationship that reduces competition.
Any suitable example, like wolves controlling deer populations
A tick on a dog is an example of _____.
parasitism
In a habitat, ____ and ____ are essential for an organism's survival.
food and water
Keystone species have a larger-than-expected impact based on their size or _____.
abundance
Name the process that follows a disturbance like a fire in an already existing ecosystem.
secondary succession
Resilience is the ability of an ecosystem to _____ after a disturbance.
recover
In a mutualistic relationship, a bird that helps an insect population also _____ when the insect population increases.
increases
Name two types of biodiversity within ecosystems.
genetic diversity and species richness
Name one effect that a decline in a keystone species can have on an ecosystem.
cause dramatic changes
Primary succession takes longer to develop soil compared to _____ succession.
secondary
If a forest and a desert are affected by drought, the ecosystem with higher resilience is likely the _____.
desert