Answer:
B) Plastic reduces the transfer of thermal energy two hands holding the utensil.
Explanation:
plastic is a good insulator which means it's prevent energy, in this case thermal energy, from conducting into the person holding it. Metal is a very good conductor which is why you wouldn't want it to touch your hand while you're cooking.
Answer:
A mixture is a combination of two or more substances which are bound chemically. Identities of each substance is retained in the mixture.
Solid-solid mixture is sub-type of mixture which are formed by mixing two or more solids.
For example, soil (mixture of sand, silt, clay etc), gun powder (mixture of carbon, potassium nitrate, sulphur), etc.
Similarly, in class various solid mixtures are found such as:
- Chalk is mixture of calcium carbonate, silt and clay.
- Concrete is a mixture of cement, lime, sand, rocks, and water.
- Stationery such as pen, pencil, sharpener, etc also come under solid mixtures.
- Alloys are also considered as homogeneous mixture. So, bronze, brass etc found in electrical appliances are also an example of solid mixtures.
75-97% of beryllium-exposed workers who develop Chronic Berylliosis have a common HLA-DPB1 gene variant versus 30-45% of beryllium exposed workers who do not develop the disease.
Chronic berylliosis is a granulomatous disease caused due to beryllium exposure. Its symptoms include cough, fever, night sweats and fatigue.
The HLA-DPB1 gene belongs to a group of MHC genes called MHC class II. MHC class II genes provide information for synthesizing proteins that are present on the surface of certain immune system cells. These proteins attach to protein fragments or peptides outside the cell.
A definitive diagnosis of berylliosis is based on occupational history, positive blood or bronchoalveolar lavage (BAL) beryllium lymphocyte proliferation test (BLPT) and granulomatous inflammation on lung biopsy.
To learn more about granulomatous here
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Answer:
There are three main types of blood vessels
The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poor blood back to the heart.
Explanation:
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