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alexdok [17]
3 years ago
8

Why do birch trees have black streaks on their trunk?

Biology
2 answers:
ehidna [41]3 years ago
8 0
Short answer - to breathe.
Long answer - the black streaks on the trunk of birch trees are called lenticels, and their function is to enable the exchange of gases between the tree and the air. So, in a way, this makes the whole process of photosynthesis a lot easier for birch trees.
eduard3 years ago
3 0

The birch tree has a <u>thin papery eye like structure that act as pores</u>. It helps in providing the pathway for <u>gaseous exchange. </u>

<u> </u>

Further Explanation:  

<u>The species of birch trees are usually small or medium in size</u>. They are generally <u>found on the northern side of Asia, NorthAmerica and Europe that has a temperate climate.</u>A number of different types of birch grow in clumps of two or more closely spaced separate trunks.

<u>The tree has light-colored bark that can be of white, gray or yellowish color. It is separated into thin papery plates and a horizontal line that is dark in color. They are referred</u> to as lenticils that has a lens-shaped structure. They appear as pores that help in direct gaseous exchange between the plants and the outer environment. <u>The barks are impermeable to gases but in this plant, they help in the exchange of gases through this pore. </u>

Learn More-

1. Learn more about a haploid cell during meiosis <u>brainly.com/question/94813 </u>

2. Learn more about how are mitosis and binary fission similar <u>brainly.com/question/6462270 </u>

3. Learn more about a dividing eukaryotic cell that is treated with a drug that inhibits the shortening of spindle microtubules. This will cause the cell division cycle to stop at the ____ stage. <u>brainly.com/question/10767798 </u>

Answer Details:

Grade: High School

Subject: Biology

Chapter: Plant cell

Keywords:

Birch, tree, papery, pores, gaseous, northern, colored, horizontal, lenticils, environment, impermeable, plants.

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