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Chapter 41: Problem 6

A tick is a(n) _____. a. brood parasite b. ectoparasite c. endoparasite

Short Answer

Expert verified
A tick is an ectoparasite.

Step by step solution

01

Identify the Terms

Examine the terms 'brood parasite,' 'ectoparasite,' and 'endoparasite.' A 'brood parasite' uses another species to raise its offspring. An 'ectoparasite' lives on the surface of its host. An 'endoparasite' lives inside the host.
02

Analyze the Host-Relation

Ticks attach to the surface of other animals to feed on their blood. They do not lay eggs in another's nest, nor do they live inside a host's body like an endoparasite.
03

Select the Correct Option

Based on the fact that ticks live on the exterior of their host and feed externally, the correct term that describes a tick is 'ectoparasite.'

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Brood Parasite
A brood parasite is a fascinating creature in the animal world. Instead of raising their own young, brood parasites rely on other species to do the hard work. They lay their eggs in the nest of a host species, tricking the hosts into rearing their offspring. This unusual form of parenting allows brood parasites to invest their energy into producing more eggs rather than nurturing.
  • Brood parasites are typically birds, such as cuckoos and cowbirds.
  • This strategy provides their young with safety and food without the parent having to care for them directly.
  • Host species often have no idea they're caring for a brood parasite's young.
This relationship, while advantageous to the parasite, can be quite costly for the host, as they unknowingly care for a foreign chick, taking resources away from their young.
Endoparasite
Endoparasites are organisms that reside inside their host. These types of parasites have adapted to live and feed within the bodies of their hosts, often inside the intestines, tissues, or blood.
  • Common examples of endoparasites include tapeworms, roundworms, and flukes.
  • They have developed various strategies to remain undetected by the host's immune system.
  • Some even have complex life cycles involving multiple hosts.
The relationship is beneficial for the parasite but detrimental to the host, as endoparasites can cause diseases or reduce the host's vitality by consuming their nutrients.
Host-Parasite Relationship
The host-parasite relationship is a complex and varied interaction where the parasite benefits at the expense of the host. This type of symbiotic relationship has evolved over millions of years.
  • Parasites can range from simple organisms like viruses to more complex beings like insects and worms.
  • They typically do not kill their host immediately, as they rely on them for survival.
  • Hosts, over time, may develop defenses against parasites, leading to an evolutionary arms race.
Understanding the dynamics of this relationship helps in the study of ecology and in devising methods to prevent and control parasitic diseases.

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Most popular questions from this chapter

Match the terms with the most suitable descriptions. _____ area effect _____ pioneer species _____ indicator species _____ keystone species _____ exotic species _____ resource partitioning a. greatly affects other species b. first species established in a new habitat c. more species on large islands than small ones at same distance from the source of colonists d. species that is especially sensitive to changes in the environment e. allows competitors to coexist f. often outcompete, displace native species of established community

Match the terms with the most suitable descriptions. _____ mutualism _____ parasitism _____ commensalism _____ predation _____ interspecific competition a. one free-living species feeds on another and usually kills it b. two species interact and both benefit by the interaction c. two species interact and one benefits while the other is neither helped nor harmed d. one species feeds on another but usually does not kill it e. two species access a resource

If you remove a species from a community, the population size of its main _____is likely to increase. a. parasite b. competitor c. predator

______ can lead to resource partitioning. a. Mutualism c. Commensalism b. Parasitism d. Interspecific competition

By a currently favored hypothesis, species richness of a community is greatest between physical disturbances of _____ intensity or frequency. a. low c. high b. intermediate d. variable
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