B, Gases. The gases create an insulation around the planet so it keeps in heat from heat sources.
I believe that plant hormonal control differs from animal hormonal control in that there are no separate hormone-producing organs in plants as there are in animals. Hormones regulate cellular processes in targeted cells locally and moved to other locations, in other function parts of the plant. Hormones also determine the formation of flowers, stems, leaves, the shedding of leaves, and the development and ripening of fruit. Plants unlike animals they lack glands that produce and secrete hormones and instead each cell is capable of producing hormones.
Answer:
The troposphere is the lowest layer
Explanation:
hope this helps!! there could be more that are right I'm just not sure so
Biodiversity is variety of life. Bio means life and diversity means change, different forms of life. The world constitute different species of plants and animals. Have a nice day!
1. The cell wall has lignin (hard substance): to prevent the xylem vessel from collapsing and withstand high pressure.
2. The absence of protoplasm (nucleus + cytoplasm) and cross wall: to allow water to move through the lumen easily.
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