Question

chapter 7: species interactions, ecological succession, and population control
species in ecosystems interact with each other in several key ways:

1. competition - species compete for limited resources
2. predation - one species ______ on another
3. parasitism - parasites live ______ their hosts
4. mutualism - both species ______
5. commensalism - one species benefits, the other is ______

competition for resources

• inter - specific competition: competition ______ different species for the same resources

resource partitioning

• species adapt to use resources in ______ ways
• examples:
• different species of ______ adapted to feed in different parts of the same tree
• birds evolved different ______ shapes to access different food sources

predator strategies

• chasing prey
• ______
• chemical warfare (like spider ______)

prey defense strategies

• ______
• warning coloration
• ______ (copying dangerous species)
• the viceroy butterfly mimics the ______ butterfly

parasitism

• parasites generally do ______ kill their hosts
• they want to live ______ them for a while
• parasites are usually ______ than their hosts
• they make hosts ______ and drain their health

mutualism

• ______ species benefit from the relationship
• example: birds eating ______ off of hooved animals
• each species is still out for its own ______

commensalism

Explanation:

This is about ecological concepts. In predation, one species hunts another. Parasites live on or in hosts. In mutualism, both species gain. In commensalism, one benefits and the other is unaffected. Resource - partitioning involves species using resources differently. Predators have strategies like ambushing and using venom. Prey have defenses like camouflage and mimicry. Parasites don't usually quickly kill hosts. In mutualism, both species have self - interest while benefiting each other.

Answer:

1. limited
2. preys
3. on or in
4. benefit
5. unaffected
6. between
7. different
8. birds
9. beak
10. Ambushing prey
11. venom
12. Camouflage
13. Mimicry
14. Monarch
15. not
16. off or in
17. smaller
18. sick
19. Both
20. ticks
21. self - interest