TheChosenOne9050
02.08.2019 •
Biology
Which of the following are synapomorphies of mammals?
a. hair
b. vertebral column
c. five digits
d. mammary glands
e. endothermy
f. placenta
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Ответ:
A) Hair and D) Mammary glands
Explanation:
Synapomorphies of mammals are hair and mammary gland as, mammals are the distinct from the other tetra-pods having hair,mammary gland and three bone ear. The three unique trait of mammals included three bones ear malleus,stapes and incus, presence of the hair and mammary gland for the production of milk.
Ответ:
Tiroxina T4
La hormona más importante que produce la tiroides se llama tiroxina y contiene yodo . Ésta tiene dos efectos en el cuerpo: Control de la producción de energía en el cuerpo: la tiroxina es necesaria para mantener la tasa metabólica basal a un nivel normal.
Explanation:
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