Most fossils ____
a. are found in sedimentary layers of rock
b. form without water
c. contain remnants of soft body parts
d. show evidence of extinct species
e. are impervious to erosion
ANSWER: a
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Which of the following is the correct organizational hierarchy, from largest to smallest, in the hierarchical order of life? (Some levels have been omitted, so you are looking for the correct order.)
A. Biosphere ? Community ? Population ? Tissue ? Organ ? Cell ? Atom ? Molecule B. Ecosystem ? Population ? Community ? Organ system ? Organ ? Cell ? Molecule ? Atom C. Community ? Ecosystem ? Population ? Tissue ? Organ ? Cell ? Organelle ? Atom D. Ecosystem ? Community ? Population ? Organ ? Tissue ? Cell ? Molecule ? Atom
The genetic code depicts the relationship between a codon and its corresponding _______.
a. protein b. tRNA c. mRNA d. amino acid
____ is a biotic factor in an ecosystem.
A. Water B. Light C. Soil D. A bacterium
Briefly explain the process of natural selection
What will be an ideal response?