You Are Examining a Saltwater Sample and See a Single-Celled

question 57

Multiple Choice

You are examining a saltwater sample and see a single-celled organism with a cell wall constructed of two pieces,with the top piece overlapping the bottom piece.The cell wall is impregnated with silica and has an intricate pattern.It is most likely that you are looking at a

• A) red alga.
• B) radiolarian.
• C) diatom.
• D) euglenid.
• E) dinoflagellate.

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Definitions:

Mosquitoes

Flying insects known for their ability to feed on blood, acting as vectors for transmitting various diseases such as malaria and the Zika virus.

Malaria

A life-threatening disease caused by parasites that are transmitted to humans through the bites of infected mosquitoes, prevalent in tropical and subtropical regions.

Flies

Insects of the order Diptera, known for their ability to fly and often considered pests because some can spread diseases.

Viral Disease

Diseases caused by viruses, microscopic infectious agents that can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.