Which of the following correctly pairs a germ layer with the cells that will form from it?
A. ectoderm: inner layer of the skin, muscles
B. mesoderm: inner layer of the skin, muscles
C. endoderm: epithelial and pigment cells of
the skin
D. ectoderm: lining of the digestive tract and
lungs
E. mesoderm: lining of the digestive tract and
lungs
B
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Rank the sensory receptors in order, from the ability to detect the widest variety of molecules, to the least variety of molecules (or none).
__ photoreceptors __ TRP channel temperature receptors __ gustatory receptors __ olfactory receptors 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 sensory receptors? What other information is related to the question? Choose Answer Given what you now know, what information 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?
The cell in micrograph "III" is at which stage
of the cell cycle?
a. prophase b. telophase c. interphase d. anaphase e. metaphase
Describe three key features that distinguish each domain of living organisms: Archaea, Bacteria, and Eukaryotes. Identify two features that all three domains share.
What will be an ideal response?
If the first-level carnivore consumes 500 kg of energy from herbivore tissue, how much is available to the second-level carnivores?
A. 100 kg B. 5 kg C. 50 kg D. 10 kg E. 500 kg