white dwarf
Explanation:
A appears on the chart at the point of low luminosity but high surface temperatures. This indicated a White Dwarf
A red giant is highly luminous stars mainly because of its large size. However, its surface temperature is hot a high when compared to white dwarfs. White dwarf surface temperatures can reach billions of degrees kelvin while red giants reach up to 5000 K on their surface.
A white dwarf is the last sequence of a low-mass star cycle and follows the red giant phase.
Answer:
Electrons Can Donate - 0
Electrons Can Receive- 2
Valence - 2
Explanation:
The electronic configuration of oxygen is 
. Thus in the p-orbital there is deficiency of two electrons. Hence, it can receive/share electron but it cannot donate electrons. This makes oxygen as a good electron acceptor. Since there is a deficiency of two electrons in the outermost shell of oxygen, the valence of oxygen in thus -2
Processes by which organisms produce food
When you relax the smooth muscles in arteries, it affects the blood pressure quite a lot. If you're a up and running person, you're most likely not always relaxed. Although - if you manage to relax, it would cause your blood pressure to lower from a high rate, to a much lower rate. That's the main outcome of this.
Fibrin is involved in shrinking clots which is also apart of "hemostasis" and wound healing. It has the ability to protect tumors from cells immune to cancers.
