Cytoskeletal elements are assembled from ____
a. proteins
b. phospholipids
c. glycogen
d. nucleotides
e. triglycerides
A
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Which of the following organisms is considered a primary consumer?
A. a cougar B. algae C. a grasshopper D. a toadstool E. a holly bush
Which organism is not correctly matched to its energy source?
A) Chemoheterotroph — glucose B) Photoheterotroph — light C) Chemoautotroph — NH3 D) Photoautotroph —CO2 E) Chemoautotroph — Fe2+
Although MCF-10A breast cancer cells grow well on Matrigel-coated culture dishes, the cells will form cysts of polarized cells that produce milk only when
A) extra collagen is added to the Matrigel. B) extra fibronectin is added to the Matrgel. C) extra elastin is added to the Matrigel. D) the Matrigel layer is thick enough to form a 3D environment. E) the Matrigel layer is present as a very thin layer on the culture dishes.
A species moving into a new habitat will be able to adapt only if there is genetic change in the population
Indicate whether the statement is true or false