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Phylum porifera (sponges) feed by:

You plate out a liquid culture of E. coli on TSA containing the antibiotic streptomycin, incubate for 24 hours, and observe a single colony. From this you obtain a pure culture of streptomycin resistant E. coli, which you propagate on TSA with streptomycin in the following weeks. You then inoculate your culture onto TSA without streptomycin and continue propagating it over the coming months on TSA lacking the antibiotic. Months later, you discover your E. coli strain is no longer resistant to streptomycin. Please explain this result: why was your original colony resistant to streptomycin, and why, months later, did you end up with a culture that was not resistant to the antibiotic?

Which characteristic is TRUE of the phylum cnidaria (jellyfish, hydra, and corals)?

When comparing the DNA sequence of a eukaryotic gene to the mature mRNA transcribed from it, you would expect to find that the mRNA is….

Which of the following traits most contributed to the evolutionary success and diversification of insects?

The adjusting entry to record the estimate of bad debts includes a debit to:

A basketball player shoots the ball into the basket perfectly three times in a row during a practice session. After a 10 minute break, they miss the basket during several shots. This initial short-term success displayed by the basketball player is primarily an example of which of the following concepts?

The adjusting entry to record the estimate of bad debts includes a debit to:

When comparing the DNA sequence of a eukaryotic gene to the mature mRNA transcribed from it, you would expect to find that the mRNA is….

The entry to record the estimate of bad debts causes