An animal without a body cavity is called
a. atypical
b. acentric
c. acoelomic
d. asymmetrical user: which of these sets of physical characteristics is used to classify animal groups?
a. body size
b. number of legs
c. body cavity type
d. method of reproduction

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )