I believe its, Suppressing a fire at the early stages.
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.
Answer:
I and II
Explanation:
FSH receptors are found in granulosa and teak in the ovary and in sertoli and Leydig cells in the testicles.
This cells are part of the epithelial and connective tissue of the ovary and testicle.
The expression of FSH receptors (FSHR) has been identified in extra-gonadal tissues, including endothelium, monocytes, placenta, endometrium, malignant tissues, bones and adipose tissue. In the bones it is found in osteoclasts that are connective tissue.
I'd try one of these:
*natural selection
*genetic drift
*gene flow
*antigenic drift
True, if we are talking about Green forests. Through The photosynthesis, the trees uses Carbon dioxide to produce Oxygen, based on the reaction:
6CO2 + 6H20 --> C6H12O6 + 6O2
Hope this Helps! :)