Imagine an invertebrate that lives in an estuary where salinity varies cyclically with the tides. If this animal practices homeostasis with respect to the salt concentration of its body fluids, its salt concentration will show ________
A) no fluctuations
B) slight, continuous fluctuations
C) a more concentrated state than the surrounding water at all times
D a more diluted state than the surrounding water at all times
B
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Check the phyla that are considered to be lophotrochozoans.
_____ Platyhelminthes. _____ Mollusca. _____ Annelida. _____ Rotifera. _____ Nematoda.
Yolk, when unequally distributed in the egg cytoplasm, is most commonly concentrated in the ____ half of the egg
a. cleavage b. gastrulation c. animal d. vegetal e. embryonic
The process by which cells break down organic macromolecules into their subunits is ________
Fill in the blank(s) with correct word
A large percentage of the public believes that vaccines play a role in the development of autism. What information would you use to explain to a friend that there is no scientific evidence to suggest that vaccines cause autism? What resources might you
use to support your explanation? What will be an ideal response?