The ________ bones are two small bones found at the corner of the eyes that have a duct system that drains tears from the eyes into the nasal chambers
A) lacrimal
B) frontal
C) occipital
D) temporal
A
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Free energy change is related to the equilibrium constant for a specific reaction.
Answer the following statement(s) true (T) or false (F)
In an XX embryo, ____ inactivation of one X chromosome usually occurs when the embryo has about 32 cells
a. phenotypic b. inhibited c. cascading d. selective e. random
Protists are
a. autotrophic. b. heterotrophic. c. unicellular. d. multicellular. e. all of these.
The figure below illustrates that 
A. most animal species have eyes with one photoreceptor and one pigment cell. B. the retina and cornea developed first, but then were secondarily lost in insects such as Drosphilia. C. genetic changes in an ancestral Pax6 gene contributed to the evolution of the mammal eye, while the Drosphilia eye arose independently. D. eye complexity has not significantly increased since the late Triassic when most modern insect families arose. E. although the mammal eye possesses more cell types and greater complexity than the Drosphilia eye, both arose from genetic changes to an ancestral Pax6 gene.