Given what you now know, what information is most likely to produce the correct answer?
What will be an ideal response?
Since the drug only works on small tumors that have not metastasized, and prevents signaling from
one cell to another cell, it must inhibit paracrine signaling. Synaptic signaling is irrelevant in this case, as
signaling does not involve neurons.
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Homologous chromosomes can be defined as:
A. pairs of chromosomes that cannot undergo DNA hybridization. B. pairs of chromosomes that match in size and appearance. C. pairs of chromosomes that share the same genes but differ in gene order. D. identical double helices of DNA that are the products of DNA replication. E. pairs of chromosomes between different species that carry approximately the same genes in the same locations.
Choose the true statements about the cichlid fish of Lake Malawi.
_____ Within a few million years, hundreds of cichlid species evolved within this lake. _____ Hundreds of different genes determine the length of the jaw in these fish. _____ Jaw length does not affect body shape and size. _____ Variation in jaw structure among species allowed cichlids to specialize in many niches.
Vampire squid (Vampyroteuthisinfernalis) are deep-sea cephalopods with features similar to both octopus and squid. Extensive video recordings show the diet of the vampire squid consists of items like crustacean remains and fecal pellets. Which of the following terms describes the position of the vampire squid in the deep-sea trophic pyramid?
A. herbivore B. primary producer C. primary carnivore D. secondary carnivore E. detritivore Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about trophic levels? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Choose the alignment(s) which are the most parsimonious for the following DNA sequences: GCACCCTATGCA CCACCTTTAAGGCA
a) G-CACCCT--ATG-CA -CCACC-TTTAAGGCA b) GCACCCTAT---GCA CCACC-TTTAAGGCA c) G-CACCC--TAT-GCA -CCACCTTTAAGGCA d) GCACCC--TATGCA CCACCTTTAAGGCA