The term "homoplasy" is most applicable to which of these features?
a. the legless condition found in various types of extant lizards
b. the 5-digit condition of human hands and bat wings
c. the beta-hemoglobin genes of mice and of humans
d. the fur that covers Australian moles and North American moles
e. the basic skeletal features of dog forelimbs and cat forelimbs

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

la transducción de señal ocurre cuando una molécula de señalización de fluido extracelular activa un receptor de superficie de la célula.