In a study of tadpole coloration, you noticed that a certain percentage of tadpoles in a population displayed a decreased ability to shift from dark coloration at night to light coloration during the day
These individuals were studied and found to have the normal number of melanophores that produced normal amounts of melanin pigment granules. You remember reading about melanophores and pigment granule transport in cells and that it involved the cytoskeleton. Which part of the cytoskeleton would you suggest investigating as a potential source of the faulty color adjustment in these tadpoles?
A. intermediate filaments
B. microtubules
C. microfilaments
B
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What can Antarctic ice core samples tell us about atmospheric CO2 levels? Select all that apply
A. Nothingâ€"ice is made of H2O and not CO2. B. CO2 ice core data confirms CO2 measurements taken directly from the atmosphere. C. Ice cores can help scientists estimate atmospheric CO2 levels from centuries ago. D. Ice cores can tell scientists exactly what plants lived on Earth centuries ago.
The extracellular matrix contains
A. collagen. B. cartilage. C. smooth muscle. D. carbohydrates. E. both collagen and carbohydrates.
Biological inquiry has increasingly evolved into a _____ and _____ practice.
A. Hypothesis-driven, evidence-based B. Fact-driven, fiction-driven C. Imagination-driven, proof-based D. Experiment-based, time-based
In ocean acidification, dissolving CO2 gas ________ the pH of the ocean
A) lowers B) does not affect C) raises D) triples