Aboy with an extra x chromosome probably has which of the following syndromes?
down syndrome
klinefelter syndrome
xxx syndrome
nextreset

Wich organism obtains its energy from dead or decaying matter

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.

Vessels draining the myocardium of the heart, open primarily ,into which chamber?