There is scientific evidence that global climate change is occurring, and that it is driven by human activities.
Answer the following statement true (T) or false (F)
True
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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.
If two species have incompatible mating structures, then which reproductive isolation mechanism prevents them from
mating? a. sexual isolation b. gametic isolation c. temporal isolation d. behavioral isolation e. mechanical isolation
What is the osmolarity of fresh water?
a. about 5 mOsm/L b. about 225 mOsm/L c. about 300 mOsm/L d. about 1500 mOsm/L
Species in widely separated but similar biomes often appear to display similar characteristics because of
A) convergent evolution. B) coevolution. C) mutations. D) evolutionary drift.