An ecosystem would include all of the following except
A. a community that may include producers, consumers, and decomposers.
B. the biosphere, with its resources and functioning systems.
C. populations of organisms in the same species.
D. nonliving air, water, soils, and other components in an area.
E. None of the answer choices is correct.
B. the biosphere, with its resources and functioning systems.
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Amino acid variability is especially apparent in several ________ in the V domains of different immunoglobulins
A) heavy chains B) complementarity-determining regions (CDR) C) peptide motifs D) epitopes
All echinoderms (sea stars and sea urchins) have:
A. a cardiovascular circulatory system and bilateral symmetry. B. a water vascular system and five-fold symmetry. C. a cardiovascular circulatory system and five-fold symmetry.
PAMPs, complement proteins, and phagocytes
are a part of ___ immunity.
a. adaptive b. innate c. antibody-mediated d. cell-mediated e. all of these kinds of
If a home uses a large supply of solar panels to generate electricity, but has no battery system, surplus electricity that is produced is usually ______
A- released harmlessly into the ground B- used to power chemical reactions that generate water for the home C- released into the power grid for others to use, generating a credit to the homeowner D- used to pump water high up into a tank to store the energy