These Statements Ask About Elements and Isotopes That Have Been

question 59

Short Answer

These statements ask about elements and isotopes that have been important in learning about Earth's history and the age of organisms. For each one, select the best choice from the five isotopes or elements below.
-portions of Earth's outermost layer of rock, which move continents to new locations over geologic time
A)magma
B)faults
C)tectonic plate
D)volcanic island chains (archipelagos)
E)trench

• A)magma
• B)faults
• C)tectonic plate
• D)volcanic island chains (archipelagos)
• E)trench

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Definitions:

Epiphytes

Plants that grow on other plants for physical support but do not extract nutrients from their hosts, thus not parasitic.

Species Richness

A measure of the number of different species represented in an ecological community, landscape or region.

Disturbance Hypothesis

posits that disturbances in an ecosystem can create opportunities for new species to colonize, thus affecting biodiversity.

Mycorrhizae

A symbiotic association between a fungus and the roots of a vascular host plant, enhancing nutrient and water absorption.