While Jenner's interest in the protective effects of cowpox began during his apprenticeship with George Harwicke, it was 1796 before he made the first step in the long process whereby smallpox, the scourge of mankind, would be totally eradicated. For many years, he had heard the tales that dairymaids were protected from smallpox naturally after having suffered from cowpox.
—"Edward Jenner and the History of
Smallpox and Vaccination,"
Stefan Riedel
Which statements support the claim that Jenner has been given credit for starting and spreading the practice of immunization?
Jenner became interested in the protective effects of cowpox during his apprenticeship.
Jenner’s mentor was George Harwicke.
Jenner made the first step to erase smallpox.
Smallpox is called the scourge of mankind.
Jenner heard stories of cowpox helping to save people from smallpox.
Which of the following sentences from the passage supports the idea that Mendel’s discoveries were the result of hard work rather than chance?
Answer:
Without the support of modern genetics and molecular biology, Mendel was able to discern fundamental rules of inheritance that still hold true today.
This sentence from the passage supports the idea that Mendel's discoveries were the result of hard work rather than chance. It highlights the fact that Mendel was able to discern fundamental rules of inheritance through his own efforts, even without the support of modern genetics and molecular biology. This suggests that Mendel's discoveries were the result of intentional and deliberate experimentation and observation, rather than luck or happenstance.
1. Use hollow blocks for constructions such as_____________.
2. Concrete hollow blocks are made from ________________ and cement to be formed into sizes.
3. The bricks are made from ______ and other materials.
4. Place the newly formed blocks into ______ to dry and solidify
5. Bricks are placed into _________ where high temperature bakes the materials.
6. The _________ are loose particle commonly found near the shorelines.
7. Gravel are loose ______________of rock fragments.
8. Steel square / try square is used to check ___________________.
9. Bolts and nuts can be tighten and loosen using ________.
10. Only qualified __________________ is allowed to work in concrete operations
11. Always consult to drawing _______ when working with masonry operations
12 The vertical alignment of scaffold is checked using ______________________.
13. Never use _______________ water in concrete mixture.
14. Cement is a combination of ___________ and aluminates.
15. We use ___________ in mixing large amount of mortars.
Mason Plumb bob PPEs Fine Aggregates
Spade ScaffoldBolts & nuts
UncleanAggregates Spirit Level Bar
PlatformLumber Oven
Wrench Squareness Sun heat
Plan Walls Hard & even
Answer:Use hollow blocks for constructions such as walls, partitions, fences, and other load-bearing structures.
Concrete hollow blocks are made from fine aggregates (such as sand) and cement to be formed into various sizes.
The bricks are made from clay and other materials.
Place the newly formed blocks into a curing area to dry and solidify.
Bricks are placed into an oven (or kiln) where high temperature bakes the materials.
The aggregates are loose particles commonly found near the shorelines.
Gravel is a loose collection of rock fragments.
Steel square / try square is used to check the squareness and accuracy of corners and angles.
Bolts and nuts can be tightened and loosened using a wrench.
Only qualified masons or personnel with proper training and certification are allowed to work in concrete operations.
Always consult the drawing or blueprint when working with masonry operations to ensure accuracy and compliance with design specifications.
The vertical alignment of the scaffold is checked using a spirit level or plumb bob.
Never use unclean water in the concrete mixture to avoid compromising the quality of the material.
Cement is a combination of calcium silicates and aluminates.
We use a platform or lumber in mixing large amounts of mortars to facilitate the process and ensure even mixing.