The first species to colonize previously disturbed or damaged ecosystems are called a(n)
A) sere.
B) pioneer community.
C) successor.
D) establishment.
B
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The oldest known fossil ____________________, the only flying mammal, is from rocks of Eocene age. Fill in the blank(s) with the appropriate word(s)
Conservation is
A) the sustainable use and management of natural resources. B) maintenance of resources in their present condition. C) invention and diffusion of new agricultural practices. D) breeding programs to rebuild endangered species. E) maintaining wild environments.
By volume, nitrogen is the most abundant gas in the modern homosphere
Indicate whether the statement is true or false
Which of the following compose the majority of the ocean's zooplankton biomass?
A) Coccolithophores B) Copepods C) Ctenophores D) Foraminifers E) Radiolarians