A Spring Stretches by 21

question 11

Multiple Choice

A spring stretches by 21.0 cm when a 135 N object is attached.What is the weight of a fish that would stretch the spring by 31.0 cm?

• A) 199 N
• B) 91.0 N
• C) 145 N
• D) 279 N

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Definitions:

Cryptic Species

Cryptic species are lineages that historically have been treated as one species because they are morphologically similar but that are later revealed to be genetically distinct.

Neotropical Skipper

A type of butterfly found in the Neotropical region, characterized by rapid, skipping flight patterns.

Astraptes Fulgerator

A species complex of butterflies, previously thought to be a single species, showcasing cryptic species diversity.

Stable Ecotype Model

Stable ecotype model is a species concept constructed for microbes in particular. In this model, a species is a long-lived population of genetically related individuals that share a stable set of adaptations for the same ecological niche.