LO. Biology Organization of Living Things

Benchmark 2

Describe the life cycle of an organism associated with human disease.

A bite from a female Anopheles mosquito such as this may transmit malaria.

The yellow malaria parasites burst out ofinfected red blood cells.

How could we use what we know about the transmission and

infection of malaria in new and different

ways?

Click here forLife Cycle of

Malaria

Deer Tick aka Black Leg Tick - This is the carrier of lyme's. http://alohamedicinals.com/lymes.htm

Lyme’s Disease Life cyclehttp://cvm.msu.edu/courses/mic569/docs/parasite/lymes.htm

Infection processDiseaseParasiteCarrierHostInfection

Key Concepts

How does mad cow disease cross the species barrier to humans?

Infection Detection

Microscope Hand lens

Tools

Life cycle of organisms associated with human diseases, such as

Lyme disease—tickMalaria—mosquitoParasites.

Real-world Contexts

Which of the following is an example of a disease-carrying organism and the disease it spreads?

A. tall grass and Lyme disease

B. the deer tick and Lyme disease

C. the Nile River and West Nile disease

D. Insecticides and malaria

A. tall grass and Lyme disease

Incorrect: Lyme disease is bacterial disease transmitted to a person by a bite of a deer tick. Although the tick may be present in tall grass, it is not carried by the grass itself.

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B. the deer tick and Lyme disease

Correct: Lyme disease is bacterial disease transmitted to a person by a bite of a deer tick. Although the tick may be present in tall grass, it is not carried by the grass itself.

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C. the Nile River and West Nile disease

Incorrect: the West Nile virus that causes West Nile disease is carried by mosquitoes. A river is not an organism

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D. Insecticides and malaria

Incorrect: Malaria is transmitted by a mosquito (like West Nile) Insecticides may be used to stop the spread of the disease by killing off the mosquitoes

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