Answer:
6.5 cm
Explanation:
Mechanical advantage is a measure of efficiency or performance of a tool or machine in terms of force amplification which is done by the machine or tool. In simple terms, it measures that at what extent the applied force is increased with the help of tool or machine.
Mathematically, it is the ratio of force produced by the tool or machine to the force actually applied to the tool.
In terms of effort length and resistance length, it is calculated as -
Mechanical advantage = 
Thus, Mechanical advantage = 
= 6.5 cm.
Answer:
Explanation:
As the population size approaches the carrying capacity, the growth rate slows because of the falling birth rate and the increasing death rate. When a population reaches its carrying capacity, the birth rate equals the death rate, and growth stops.
Answer:
1) pathway taken by water
water is absorbed from the soil, through the root hair cells and is transported by the xylem vessel up the stem to the leaf and/or flowers. From the leaf, some water is lost to the atmosphere as vapors escape out through the stoma present in the lower epidermal layer of the leaves.
2) water potential gradient
water potential refers to the concentration of water present. A gradient forms when there is a difference between the concentrations of water in two regions separated by a partially permeable membrane.
Hence, water moving down a water potential gradient means that it goes from a region of high water potential to a region of low water potential.
3) There are tiny openings on the lower side of the leaves called as stomata (plural: stoma) that allow for gaseous exchange to occur. These openings are controlled by guard cells which are open during the day and close during the night.
Hope that answers the question, have a great day!
Answer:
B. move by osmosis from solution B to solution A
Explanation:
Remember that osmosis as a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.
