Measuring its costs and benefits in terms of energy spent and/or gained, predation :
A. is a lose-lose interaction.
B. results in gain for both individuals.
C. results in a gain for one individual and a
loss for the other.
D. results in a gain for one individual and
neither a gain nor a loss for the other.
E. none of these.
C
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Pinworms and hookworms belong to the phylum
A. Porifera. B. Cnidaria. C. Platyhelmintes. D. Nematoda. E. Annelida.
Laboratory simulations provide indirect evidence that organic compounds such as __________ and __________ selfassemble
spontaneously under conditions like those thought to have prevailed on the early Earth. Fill in the blank(s) with the appropriate word(s).
In multicellular species, fungal spores germinate and give rise to filaments called __________.
Fill in the blank(s) with the appropriate word(s).
Enzymes function to
A. react with other enzymes to form a product. B. regulate messages between cells. C. catalyze chemical reactions. D. transport molecules and ions across membranes.