Examlex
Some scientists theorize that early life was RNA-based.
Metabolism
The biochemical processes that occur within a living organism to maintain life, including the conversion of food to energy and building materials.
Plumbing Tool
A device or implement used by plumbers to repair or maintain plumbing systems, such as wrenches, pliers, and pipe cutters.
Clogged Drain
A blockage in a drain that restricts water flow.
English-speaking
Referring to populations or individuals who speak English as their primary language.
Q2: Bacteria lack membrane-bound organelles.
Q3: The gene pool for a particular population
Q25: Trypanosoma is a protistan parasite that causes_
Q28: The elaborate courtship displays common among animals
Q51: Which of the following are vestigial structures?<br>A)
Q53: DNA recombination changes the genetic makeup of
Q56: Amphibians assumed to have evolved from<br>A) arthropods.<br>B)
Q63: In general, a substance that carries an
Q69: Within a large population, if no mutations
Q73: Birds and mammals have a more active