Which of the following is NOT a morphogen?
A. activin
B. noggin
C. Wnt
D. cadherin
E. protein produced by Spemann's organizer (dorsal lip of a gastrula)
D. cadherin
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Based on the phylogeny shown, the group of species including (2-5) can best be described as a
A. clade. B. paraphyletic group. C. polyphyletic group. D. cladogram. E. synapomorphy Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about phylogenetic trees? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
True fungi differ from slime molds because they have (cell walls/motility/tubular mitochondria)
What will be an ideal response?
Molecules of food have a special form of potential energy called ________.
A. kinetic energy B. chemical energy C. entropy D. ATP
The single ventricle in an amphibian heart means the oxygenated and deoxygenated blood mix. How do amphibians manage to survive despite this inefficiency?
A. They keep their body temperatures high. B. They move very slowly. C. They transport oxygen across the skin. D. They keep gills into adulthood. E. They absorb large amounts of fluid.