Answer:
P wave
Explanation:
Electrocardiogram records the strength and timing of electrical activity in heart. As various regions of heart contract at different times and for different duration, the electrical activity is not constant and shows a series of rise and fall. There are three main components of ECG: P wave, QRS complex and T wave.
P wave indicates the beginning of electrical signal in the right atrium. The signal spreads in both right and left atria which leads to their contraction. As a result, blood is pumped into the ventricles and rest of the process occurs.
The part of a flowering plant that develops into a seed is the ovule.
When pollen grains land on the stigma of the correct species, they germinate. A pollen tube grows through the tissues of the flower until it reaches an ovule inside the ovary.
The nucleus of the pollen grain (male gamete) then passes along the pollen tube and joins with the nucleus of the ovule (the female gamete). This process is called fertilization.
After fertilization, the female parts of the flower develop into a fruit. The ovules become seeds and the ovary wall becomes the rest of the fruit.
Answer:
Hopes this helpssss
Explanation:
to translate the mRNAs for those proteins on membrane-bound ribosomes.
The hydrolytic enzymes are most likely to accumulate in the Golgi Apparatus
A. Temperature, humidity, and pressure are basically the same all through an air mass.
B. Temperature at the border of an air mass is always higher than in the middle.
The purines have two rings in their structure while the pyrimidines have hust one
