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lidiya [134]
3 years ago
10

Physical activity not related to a persons job is defined as?

Biology
1 answer:
gulaghasi [49]3 years ago
7 0

Answer:

A physical activity not related to a persons job is identified as working out.

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What role do hypothesis play in scientific inquiry?
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The hypothesis is the question you are trying to answer or the problem you need to figure out, it is kind of like a starting point
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Which of the following is a biotic factor that limits the carrying capacity of animal species?
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I think the answer is B
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What prevents blood movement from left ventricle to left atrium​
irina1246 [14]

The Mitral valve which is also known as left atrioventricular prevents blood movement from left ventricle to left atrium.

Explanation:

  • Human heart is four chambered.
  • Two of these are receiving chambers known as atria and the other two are distributing chamber known as Ventricles.
  • Atria are superior chambers and ventricles are inferior chambers.
  • The heart has four valves broadly grouped as Atrioventricular valves and Semi lunar valves.
  • Atrioventricular valves allows flow of blood from atria to ventricle. These are tricuspid valve and bicuspid valve.
  • Semi-lunar valves allow blood to pass out of the heart. These include the pulmonary and aortic valves.
  • The pulmonary valve allows blood to flow from right ventricle  to the heart while aortic valve allows blood to flow from left ventricle to the Aorta.
  • The Tricuspid valve located between the right atrium and right ventricle allows blood to flow from right atrium to the right ventricle.
  • The Bicuspid valve ( Mitral valve)  located between the left atrium and left ventricle allows the blood flow from left atria to left ventricle.
  • Valves maintain the unidirectional flow of blood and thus prevent its back flow.
6 0
3 years ago
Which of these is unique to flowering plants?
Aliun [14]

Answer:

Double fertilization. (Ans. 5)

Explanation:

Double fertilization is a complex fertilization process occurs only in flowering plants known as angiosperm. In this process two male gametes or sperm cells fertilization occurs, first one is fertilized with the egg and form the zygote and second one is fuses with the 2 polar nuclei which cause the formation of endosperm.

In double fertilization, after the process of fertilization, the tissue of ovary forming the fruit and fertilized ovule of an ovary forming the seed.

4 0
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Consider the wetland habitat pictured here. imagine a very hot summer with little rain. what would be the limiting factor for th
Gnom [1K]
The answer would be water.
6 0
3 years ago
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