The interaction of a biotic community and its abiotic environment is referred to as a(n)
A) biosphere.
B) ecosystem.
C) population.
D) biome.
B
Biology & Microbiology
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Several genes are used in constructing the phylogenetic tree of Eukarya, but the gene(s) encoding for ________ is/are NOT used
A) ATPase B) cytoskeleton tubulins C) RNA polymerase D) tRNAs
Biology & Microbiology
The average person in the United States has an ecological footprint nearly _____ times that of an average world
citizen. a. two b. three c. four d. five e. six
Biology & Microbiology
In this diagram of the life cycle of a flowering plant, in which structure, A, B, C, or D, would a pollen tube grow?
1.A
2.B
3.C
4.D
Embryonic endoderm gives rise to:
a. muscle. b. the lining of the digestive tract. c. the nervous system. d. skin. e. skeletal tissue
Biology & Microbiology