<span>the scientific definition of Beaker Tongs are test tube clamp or hot hands it depends
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B cell activation occurs in the secondary lymphoid organs including the spleen and lymph nodes. After B cells mature in the bone marrow, they migrate through the blood to s<span>econdary lymphoid organs</span><span>, which receive a constant supply of antigen through circulating </span>lymph.
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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!
Hi! my name is Christy & I'm glad to help you!
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The mitochondria are organelles within an animal cell that provide energy for the rest of the cell'sfunctions through the creation of the energy molecule ATP by the chemical reactions occuring in the Krebs Cycle.
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I hoped this helped you!
