You Are Sampling a Stream with a Net, Collecting 100

question 55

Multiple Choice

You are sampling a stream with a net, collecting 100 macroinvertebrates. You have been told the stream has high richness but low evenness. Which of the following collections would best represent the stream if what you were told is true (assume the different macroinvertebrate types noted are all the same species (e.g., 20 mayflies are all of the same species) ?

• A) 80 caddisflies, 20 mayflies
• B) 60 caddisflies, 20 mayflies, 10 stoneflies, 5 damselflies, 4 dobsonflies, 1 cranefly
• C) 60 caddisflies, 8 mayflies, 8 stoneflies, 8 damselflies, 8 dobsonflies, 8 cranefly
• D) 60 caddisflies, 37 mayflies, 1 damselflies, 1 dobsonflies, 1cranefly

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Definitions:

Set Point

A theory suggesting that the body regulates its weight and energy balance through internal controls.

Basal Metabolic Rate

The amount of calories needed to maintain bodily functions while at rest, referred to as metabolism.

Social and Cultural Factors

These refer to the influences that derive from the society and culture one belongs to, affecting behaviors, beliefs, and attitudes.

Fried Caterpillars

A dish consisting of caterpillars that have been cooked in oil, considered a delicacy or traditional food in some cultures.