In 1940 Matthew and Marion Stirling found basalt altars at the site of La Venta.
Matthew Stirling was an ethnologist and archaeologist that was sent on expeditions to the Mexican Gulf Coast area to further research the <span>Olmec culture. It was in then years around 1940 that he found with his wife, Marion, several sculptures and monuments in that area. In 1940 he found several altars in La Venta.</span>
During diffusion the molecules move in constant random motion. <span>The </span>net movement<span> of a substance from a region where it has a higher concentration to a region where it has a lower concentration, due to random molecular motion, is called </span>diffusion<span>. Diffusion is a widespread and important process which occurs in both living and non-living systems. </span>
Moving from the shade into the sun, removing a sweater, curling up in a ball all are the examples of behavioral mechanisms for modifying heat loss via conduction and radiation.
What is heat loss?
- Heat transfer from one material to another can occur intentionally or accidentally.
- Conduction, convection, and radiation are possible mechanisms for this.
- When a component comes in direct touch with another component, whether it is insulated or not, conduction frequently happens.
- Convection happens when an air barrier surrounds a pipe, electric heater, or other component.
- When there is no touch and heat travels in waves, it is called radiation.
Here are some typical heat loss regions that designers of heating equipment should take into consideration:
- uncovered surfaces
- Insulated surfaces that are horizontal or vertical
- Water is present.
- surfaces with paraffin or oil
- Wind speed has an impact.
Hence, all are the examples of behavioral mechanisms.
To learn more about heat loss click on the link
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Answer:
a. 50%
Explanation:
<em>BRCA1 genes is a tumor supressor gene whose harmful mutation can cause hereditary breast ovarian cancer syndrome in both males and females. The BRCA actually stands for breast cancer.</em>
<em>Mutation in BRCA1 gene is heritable and every progeny of a carrier parent irrespective of the sex has a 50% chance of inheriting the trait from such parent, be it from the mother or the father.</em>
Hence, the correct option is a.
