The decrease of carbon-12 in a fossil indicates the age of that fossil
__________________ Indicate whether the statement is true or false.
False - carbon-14
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Many insects, like moths and flies, undergo complete metamorphosis. What would you predict about gene expression in these two kinds of insects?
A. The basic organization of homeotic genes is the same in both larvae and adult, but the expression of some other genes must be different. B. Completely different sets of genes must be used in the development of larvae and the adult. C. The order of homeotic genes along the body axis must be different in larvae and adult. D. The same genes are expressed at each stage, but the age and number of cells accounts for the minor morphological differences. 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 homeotic genes and metamorphosis? 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?
Dr. Askins performs an electrophysiology experiment. She records a neuron firing an action potential. What voltage
does she record during each action potential spike? a. -70 mV b. -55 mV c. +35 mV
d. +55 mV e. +70 mV
Which of the following processes in making blue jeans is incorrectly matched?
a. Blue dye - E. coli indigo b. Cotton - fungal hyphae c. Debleaching - bacterial enzyme d. Plastic - bacterial PHA e. Stone-washed - fungal enzyme
Along with death, this decreases population size
A) Skin cancer
B) Carbon footprint
C) Age structure
D) Emigration
E) Desertification
F) Chlorofluorocarbon
G) Ozone
H) Carrying capacity
I) Density-dependent
J) Death rate