The tricuspid valve shuts. This prevents blood from flowing backward into the right atrium while the ventricle contracts. So, your answer will be the Tricuslid Valve. Hope I helped!
The answer is D. Telegraph, telephone, cordless phone , mobile
DescriptionPopulation density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term.
I believe it’s the study of agriculture (c)
Answer:
A. The plant needs very stable weather.
Explanation:
A plant survives in a tropical rain forest. When placed in a temperate forest, it dies within a year. The most likely characteristic of this plant is it needs very stable weather.
