The answer is actually none of the above. The Devonian Period allowed for amphibians to evolve, as well as terrestrial vertebrate. Forests grew to cover most of the continent. All of these events happened in the Devonian Period.
Answer:
a transmembrane protein
Explanation:
A transmembrane protein spans the phospholipid bilayer one or more times. they are made of amphiphilic phospholipids: phospholipids with a hydrophilic phosphate head and a hydrophobic tail with two fatty acid chains.
A search method employed by two or more people overlapping separate line searches forming a grid.
Not to sure tho hope this helps
Movement of lithospheric plates created isolation between populations and with isolation comes different mutations and lineages which is how evolution occurs. (This is called allopatric speciation!).
QRS complex refers to the combination of the Q, R, and S waves, and indicates ventricular depolarization and contraction (ventricular systole).
Ventricular rate can be calculated by determining the time interval between QRS complexes. The duration of the QRS complex is normally 0.06 to 0.10 seconds. This relatively short duration indicates that ventricular depolarization normally occurs very rapidly.
P QRS and T waves in electrocardiogram signifies the P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization.
To learn more about ventricular depolarization , here
brainly.com/question/10577559
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