An Ecologist Studying Interaction Strength in a Pond Set Up

question 47

Multiple Choice

An ecologist studying interaction strength in a pond set up laboratory experiments using aquaria.He set up food webs in two aquaria that included these interactions: After populations in the aquaria stabilized, the ecologist removed the small fish from one aquarium.The population of Daphnia there immediately increased rapidly.This indicates that the interactor species (fish) had what effect on the target species (Daphnia) ?

• A) No interaction
• B) Strong positive interaction
• C) Strong negative interaction
• D) Weak positive interaction
• E) Weak negative interaction

---

Definitions:

Howard Gardner

An American developmental psychologist best known for his theory of multiple intelligences, which suggests that individuals have various types of intelligence in varying degrees.

Alfred Binet

A French psychologist best known for developing the first intelligence tests in the early 20th century.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases.

Large Positive

An expression indicating a significantly positive aspect, result, or feedback; it often suggests a considerable degree of positivity or benefit.