Why are desert soils low in organic matter?

1 answer:

8 0

There are two main theories for the lack of organic material in desert soils. Firstly, the organic life in most deserts is so sparse that it cannot produce much organic matter. Secondly when things do die and decompose in the desert the heat and sunlight often bleach nutrients out of the matter before it is decomposes enough to be absorbed into soil

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Is a threadlike form of genetic material loosely dispersed throughout the nucleus when a cell is not dividing?

lord [1]

Chromatin is the threadlike form of genetic material in the nucleus.

(chromatin coils around histone proteins and form chromosomes when mitosis/meiosis are going to occur)

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The picture above shows some of the organs of the human body. Which organ does the letter W point to?

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Answer:

I'm sorry but there is no picture above you-

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The portion of the tubule system that is relatively impermeable to solutes but contains many aquaporins for water reabsorption

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Descending limb of loop of Henle

It helps to maintain the concentration of urine. It is highly permeable to water thus water is readily reabsorbed from the descending limb by osmosis. It is impermeable to sodium and chloride ions.

<h3>What is a Tubule system ?</h3>

The transverse tubular system is a network of interconnecting rings, each of which surrounds a myofibril

The nephron uses four mechanisms to convert blood into urine: filtration, reabsorption, secretion, and excretion. These apply to numerous substances

The distal convoluted tubule (DCT) and collecting duct (CD) are the final two segments of the kidney nephron. They have an important role in the absorption of many ions, and in water reabsorption.

Learn more about Tubule system here:

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2 years ago

The students in Mrs. Cosby's class were observing worms. The students wanted to find out if a worm's body weight is related to h

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After the worms have finished eating their food, the students must now weigh the worms and record this data. They can then compare these new weights to the starting weights of the worms and see if it demonstrates their hypothesis. Hope this helped :)

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Read 2 more answers

Taste receptors on the tongue are not related to smell receptors of the nose.

tekilochka [14]

Answer:

<u>b. False</u>

Explanation:

As human has about 350 olfactory receptors and subtypes work in various conditions allowing us to sense about 10,000 doors. All senses of smell and tastes merge at the back of the throat.

As you taste something before smelling it the smell lingers on inside in the nose which makes you smell it. As both the smell and taste are chemoreceptors which means both have chemically same sensing environments.

In addition, the division of taste receptors within the nose coordinate with activities, although humans can distinguish between the tastes from the smells of the objects.

Working together to create a perception of flavor through the nasal passage.

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3 years ago