The stem is used for that process
Here's what I found :)
-During prophase, the nucleus disappears, spindle fibers form, and DNA condenses into chromosomes which are sister chromatids. During metaphase, the sister chromatids align along the equator of the cell by attaching their centromeres to the spindle fibers.
The given statement is true.
Fibrocartilage comprises an amalgamation of cartilaginous tissue and white fibrous tissue in various extents. It exhibits toughness and flexibility due to the presence of the former constituent, and the property of elasticity due to the latter. It is only cartilage, which comprises both the type I and II collagen.
Fibrocartilage is found on the pubic symphysis, and on the soft tissue to bone attachments. Fibrocartilage is a dense, tough, and fibrous component, which assists in filling the torn part of the cartilage.
Answer;
-Atrial contraction;
Explanation:
-The cardiac cycle comprises all of the physiological events associated with a single heartbeat, including electrical events, mechanical events (pressures and volumes), and heart sounds.The atria and ventricles alternately contract in each cardiac cycle. The pressures in the chambers change greatly over the course of the cardiac cycle.
-During atrial contraction, blood flows from atria (high pressure) to ventricles (low pressure). Similarly, this same pressure gradient exists during ventricular filling.
