Which of the Following Types of Species Interaction Is Correctly

question 7

Multiple Choice

Which of the following types of species interaction is correctly paired with its effects on the density of the two interacting populations?

• A)predation: as one increases, the other increases
• B)parasitism: both decrease
• C)commensalism: as one increases the other stays the same
• D)mutualism: both decrease
• E)competition: both increase

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Definitions:

Natural Selection

A major mechanism of evolution: the differential survival and reproduction of individuals of a population based on differences in shared, heritable traits. Outcome of environmental pressures.

Disruptive Selection

An evolutionary process that favors individuals at both extremes of a trait distribution over the average phenotype.

Finch Species

Refers to various types of finches, small to medium-sized passerine birds, known for their diversity in beak shapes and sizes, which reflect their dietary preferences.

Separate Species

A biological concept defining groups of organisms that can interbreed freely under natural conditions but do not breed with other such groups.