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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 amount of a crop that a farmer can harvest per acre is referred to as crop yield. Farmers have been able to increase their c
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Answer c more productive I hope this helps!
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3 years ago
If the population of rats in your community is doubled, what effect would
salantis [7]

Answer:

The community would be out of resources

Explanation:

the doubling of the rat would surely affect the resources of the community.

7 0
3 years ago
1. Which of the following is an example of a direct observation?
AVprozaik [17]

Answer: a. Measuring the amount of rain that falls in a 24-hour period in a rain gauge.

4 0
3 years ago
chambers A and B are placed next to each other but are separated by a film permeable to both glucose and fructose. chambers A co
Molodets [167]

Answer:

2.glucose move into chamber B faster than fructose

Explanation:  

  • Facilitated diffusion: refers to the transport of hydrophilic molecules that are not able to freely cross the membrane. Channel protein and many carrier proteins are in charge of this <u>passive transport</u>. If uncharged molecules need to be carried <u>this process depends on concentration gradients</u> and molecules are transported from a higher concentration side to a lower concentration side. If ions need to be transported this process depends on an electrochemical gradient. The glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.  Facilitated diffusion is a passive transport process because the cell does not need any energy to make it happen.  

The exposed scenario is an example of facilitated diffusion, a process that occurs in favor of the concentration gradient, and which rate depends on the concentration of molecules in each side of the membrane, in this case, glucose and fructose, among other factors that might also influence the diffusion rate. So, as the concentration of glucose is higher in chamber A (80%), and lower in chamber B (20%), in comparison with fructose, the first one will diffuse faster than fructose. The difference in concentration between both chambers is sharper in glucose, so its transport is faster than the fructose transport, which will also diffuse but at a lower rate.

7 0
3 years ago
An example of a parasympathetic pathway is the innervation of the heart: The ____________ nerve fibers carry action potentials f
ratelena [41]

The vagus nerve fibers carry action potentials from the brain toward the heart.

<h3>What is vagus nerve?</h3>

The vagus is a nerve that performs the role in sensory, motor, and secretory functions. It contains about 80% sensory fibers. The vagus nerves comes from the brain towards the carotid artery of the heart.

So we can conclude that The vagus nerve fibers carry action potentials from the brain toward the heart.

Learn more about nerve here: brainly.com/question/869589

6 0
2 years ago
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