The __________ is a sedimentary cycle; Earth's crust is the largest reservoir, and there is no major gaseous form. Fill in the blank(s) with the appropriate word(s)
ANSWER: phosphorus cycle
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In comparing the development of the unwebbed foot of the chicken and webbed foot of a duck, what differences are there in the expression of BMP4 and gremlin?
A. Chicken feet only express BMP4 while duck feet only express gremlin. B. BMP4 is expressed similarly in both chicken and duck feet, while gremlin is only expressed in duck feet. C. Gremlin is expressed similarly in both chicken and duck feet, while BMP4 is only expressed in between chicken toes. D. Both BMP4 and gremlin are expressed similarly in chicken and duck feet. E. BMP4 is expressed similarly in both chicken and duck feet, while gremlin is not expressed between the toes of chicken feet.
Hind leg bones in whales are an example of ____ structures
a. vestigial b. analogous c. homologous d. adaptive e. fossilized
Bacteria and archaea use three main routes to catabolize glucose
What will be an ideal response?
Cells become progressively committed to specific patterns of gene activity and developmental fate
through a process known as: a. morphogenesis. b. determination. c. cell differentiation. d. nonspecific differentiation. e. growth.