What functional group is not present in the following structure for thyroxine (thyroid hormone)?
a. carboxylic acid
b. organic halide
c. amine
d. all of the above
Answer : d. all of the above
You might also like to view...
Which of the following could be considered an oligotrophic (growing at low nutrient levels) environment inhabited by alpha-proteobacteria?
A. Anaerobic environment B. Growth in food items C. Symbiotic growth D. Remote marine environments
Based in the information provided, the best explanation for the low numbers of spiders and flies in plot 5 is:
A. centipedes are actively consuming flies and spiders. B. there were not enough spiders to catch and consume all the flies. C. there were not enough flies to support a large centipede population. D. centipedes prefer spiders to flies. Clarify Question 1. What is the key concept addressed by the question? 2. What type of thinking is required? 3. What key words does the question contain and what do they mean? Gather Content 1. What do you know about food webs?How does it relate to the question? Consider Possibilities 1. What other information is related to the question? 2. Which information is most useful? 3. Which food webs make sense?Both spiders and flies are decreased in number, while centipedes are increased in plot 5. Choose Answer 1. Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process 1. 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?
An insect whose larval and adult forms occupy different habitats and consume different food probably undergoes ____
metamorphosis.
a. no b. incomplete c. complete d. pupal e. instar
Smooth muscle in the veins has what type of adrenergic receptor?
A) gamma B) alpha cholinergic C) alpha D) beta2 E) cholinergic