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Paul [167]
3 years ago
12

The B horizon is also called the _____.

Biology
1 answer:
scZoUnD [109]3 years ago
3 0
Answer: B soil is also called the SUBSOIL.

Soil horizon consists of layers of soil that differ physically. It contains 3 or 4 layers or horizon such as O horizon, A horizon, B horizon, C horizon and R horizon. B horizon is also referred as subsoil. It is yellowish to brown in color. It consists of mineral layers such as silicate clay, iron, aluminium, gypsum, silica, humus, etc. The roots of a plant penetrates through the subsoil.
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Zielflug [23.3K]

Answer:

eukaryotic cells have true nucleus that's why it's more complex.Prokaryotic cells have false nucleus

Explanation:

3 0
3 years ago
Which statement correctly describes the difference between cellular respiration and photosynthesis
Shkiper50 [21]
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Make sense?

Have a good day
7 0
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*will give brainliest!*<br><br> Why is the biosphere so fragile?
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6 0
3 years ago
Read 2 more answers
Suppose that when you examined your tubes (in this exercise) after incubating them, you noticed that the unsealed control contai
aivan3 [116]
The Oxidation-Fermentation Test is used to differentiate bacteria built on their capability to oxidize or ferment specific sugars.
Once microbes are inoculated,-One tube is sealed with a layer of sterile mineral oil to promote anaerobic growth and fermentation.-The other tube is left unsealed to allow aerobic growth and oxidation.
Organisms able to ferment the carbohydrate or ferment and oxidize the carbohydrate will turn the sealed and unsealed yellow throughout.
Organisms able only to oxidize the sugar will turn the unsealed yellow medium and leave the sealed medium green or blue.
Fragile fermenters will convert both tubes slightly yellow at the top.
Organisms not able to metabolize the sugar will either produce no color change or will turn the medium blue due to alkaline products from amino acids degradation.
Since Pair #1 showed complete yellowing for sealed and unsealed, these Organisms able to ferment the carbohydrate or ferment and oxidize the carbohydrate. So our interpretation will be that the organism has: Oxidation and fermentation OR fermentation only.
For tubes #2 and #3, the sealed tubes were green throughout suggests that they need oxygen for aerobic growth, and the fact that their unsealed tubes showed light yellowing is evidence for oxidation. Sealed - Green and Unseal - Yellow. Our interpretation for these pairs of tubes would be : Oxidation
Tube 1 can be either Oxidation and fermentation OR fermentation only. So reliability of this needs to be confirmed more with additional testing.
Tubes 2 and 3 are most reliable because they can only be oxidation only and no fermentation.
6 0
3 years ago
Why is crossing over an essential step in meiosis
marshall27 [118]

Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.

I just found this on google

7 0
3 years ago
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