Answer:
Pros: Farming is more efficient, Output level is high
Cons: Utilization of genetic engineering and GMOs is involved, Pandemics or epidemics
Explanation:
Pros:
1. Farming is more efficient
2. Pesticides or herbicides are used in less quantity.
3. Dependency level on other countries is less
4. Output level is high
5. Longer shelf-life of the products.
Cons:
1. Utilization of genetic engineering and GMOs is involved.
2. Loss of biodiversity
3. Cross pollination may lead to problems with hybrid.
4. Pandemics or epidemics
5. Excessive quantity of artificial flavors in food.
Invented by Archimedes around 250 BC, a Block is a set of pulleys on an axle in a housing. When rope is run through a block or a series of blocks, the whole assembly is called a Tackle. The most common arrangement is to have one1 block attached to a fixed position and another block left to move with the load being pulled or lifted. The mechanical advantage of a block and tackle is equal to the number of time the same line is attached to or runs through the moving block. The pulley on the left does not have a block on the Bale. When you pull on the rope, you are pulling the full weight of the bail. The tackle on the right has 4 lines running through its pulleys. This would allow you to lift 20 pounds with only about 5 pounds of pressure on the hauling part of the line. While the block and tackle is still used today, it has been largely replaced with the electric winch.
The rope used in the 1800's would have been of natural fiber like we have in this exhibit. The rope around the bail is made of SISAL which comes from the leaves of the agave plant. Cotton rope is running in the blocks. Notice how soft it is compared to the SISAL fiber rope. Jute fiber twine, from the Corchorus plant, is used to tie the ends of the larger ropes. It is the same fiber woven to make burlap sacks. Natural fiber rope continued to be in widespread use until the 1950s when synthetic fibers, such as nylon, became popular.
Answer:B). Cell membranes are composed of a lipid bilayer.
Explanation: A membrane is a lipid bilayer that surrounds the cell. Lipids have two parts: the fatty acid chain (the tail) and the phosphate group (the head).
The phosphate head groups are polar, face outward and interact with the outside environment of the cell. The fatty acid chain is hydrophobic and nonpolar, face each other in the bilayer thus forming a hydrophobic fluid interior.
The hydrophobic nature of the bilayer interior makes the membrane to permit only nonpolar and hydrophobic molecules to pass through the cell membrane. This is the reason the membrane allows only molecules that dissolve in the lipid bilayer to pass through to enter or leave the cell.
Answer:natural selection Genetic direction and gene flow
Explanation: I was just Researching this topic
Researching this topic
2. A
3. D (got cut off but the others don’t seem right)
4. D
Hopefully these are correct
