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zzz [600]
3 years ago
10

The B horizon is ____.

Biology
2 answers:
Alexus [3.1K]3 years ago
6 0
<span>less nutrient rich than the A horizon</span>
Anna007 [38]3 years ago
6 0

Answer:

less nutrient rich than the A horizon

Explanation:

B horizon is the layer of the soil present below the uppermost horizon (the A horizon). B horizon is characterized by the presence of lesser amount of humus as compared to the humus present in A horizon. The lesser humus content in B horizon makes it less nutrient-rich compared to the A horizon. B horizon is a hard and compact soil layer.

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The twisted ladder shape of DNA
Grace [21]

Answer:

C. Double helix

Explanation:

The twisted ladder shape that DNA has can also be called a double helix.

It is in the shape of a helix, which is similar to a 3D spiral shape.

It is called a double helix because DNA is made up of two DNA helix strands that are intertwined.

So, C is the correct answer.

5 0
3 years ago
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Why are chloroplasts absent in epidermal cells ?
const2013 [10]
<em>the function of epidermis is to protect the leaf
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3 years ago
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What is the big bang theory, explain it in theory
KIM [24]

Explanation:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today

6 0
3 years ago
When one plant's pollen fertilizes the egg of another plant it is called _______________/___________
Anna007 [38]
When one plant's pollen fertilizes the egg of another plant it is called cross pollination.
7 0
3 years ago
Addition of a nucleotide onto a dna strand is an endergonic reaction. what provides the energy to drive the reaction?
Kruka [31]

The release of pyrophosphate from the incoming nucleotide, and then hydrolysis of the pyrophosphate to inorganic phosphate provides energy for the addition of nucleotide onto a DNA strand.

Nucleotides are linked together by a condensation event that yields a tiny, stable molecule. But the released molecule is pyrophosphate, not water. A good amount of free energy is released when water is added to pyrophosphate.

The high-energy link between the ejected beta and gamma phosphates stores the energy for each incoming nucleotide's addition. The subsequent hydrolysis that occurs drives the process. A substantially greater quantity of energy is released when two phosphates are separated into individual phosphates.

Learn more about nucleotides here:

brainly.com/question/13185536

#SPJ1

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