Answer:
The bird's respiratory system consists of paired lungs, which contain static structures with surfaces for gas exchange, and connected air sacs, which expand and contract causing air to move through the static lungs
Explanation:
D. all of the above is the correct answer
Answer:
some organisms fit into more than one category
Explanation:
Its Right
I think the correct answer among the choices given above is option A. <span>In gametogenesis, geminal cells multiply by mitosis and muture gametes are formed by meosis. Gametogenesis is a process by which a diploid or a haploid cells undergo division to form mature gametes.</span>
<span>The end diastolic volume in a rapidly beating heart after an hour about 170/min will be reduced because the heart rate/heart beat will be in calm beating whenever the patient is already relaxed and gain his breathing from the rapid heartbeat which is caused by running, using stairs or from exercising. </span>
