False the answer is false
Answer:
1. False
2. True
3. True
4. False
Explanation:
In mammals, the contraction of the heart muscle is caused by pacemaker cells localized within the sinoatrial (SA) node. These cells rhythmically generate slow electrically-induced action potentials due to their slow rate of depolarization. The pacemaker cells generate the action potentials that propagate through the heart and trigger the contraction of myocyte cells (i.e., myocytes simply conduct the action potential waves). The slow depolarization of pacemaker cells occurs during diastole, i.e., during the period of relaxation of the heart muscle.
I thinks its a layer of soil with characteristic properties, sorry if its wrong I'm a beginner
A. The great egret. It has a similar hunting area (the edge of the pond) and also eats fish, as well as other similar prey to the great blue heron
The nucleus is replicated , therefore a copy of DNA is made
