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VARVARA [1.3K]
3 years ago
13

in order to continually use the same area of land for agriculture, some farmers apply fertilizers to improve the level of nitrat

es in the soil. an alternative to this intensive use of fertilizer is to plow the roots of the leguminous plants back into the soil and leave the area unplanted for a season. why would a farmer use this alternative method and what would be the benefit of turning over the soil and leaving the old pant roots?
Biology
1 answer:
Solnce55 [7]3 years ago
4 0
Ploughing and turning over the soil aerates the soil so the roots of plants are able to thrive well. Ploughing the roots of leguminous plants back to the soil returns nutritents and organic matter to the soil organically rather than using synthetic fertilisers which are potentially hazardous to the environment.
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d. What is the general term for organisms that live in soil and fallen leaves on the forest floor? What is one example of them?
Ivanshal [37]

Answer:

Edaphon, Leaf litter and earthworm

Explanation:

  1. Edaphon is the general term used to reffer to the animals and plants present in the soil.
  2. On the other hand, there is not only one name for the fallen leaves on the forest floor. It could be either plant litter, leaf litter or even tree littler. Although the name suggests it is only leaves, this <u>plant litter</u> could include leaves, barks and twigs that can fall off a tree.
  3. The edaphon its made up of thousands of organisms including a huge number of bacteria, fungi, and arthropods. A good example of organisms living in the soil is an earthworm. Earthworms crawl through the soil feeding from it, digesting part of the organic material and fertilizing it with their excrement.

7 0
3 years ago
Read 2 more answers
The EKG is hooked up, and Mr. M's trace looks very abnormal. His heart rate is low. The T wave, which indicates repolarization o
azamat

Answer:

This question lacks options, options are: Mr. M's cells are depolarizing too easily. Blocking Nat channels will make it harder for them to depolarize, bringing their sensitivity back to normal O Mr. M has too little K* leaving his cells, so we need to block the Nat channels so the Kt channels can stay open and his cells can repolarize properly. Mr. M has too little K* leaving his cells, so we need to block the Nat channels so the Na /K+ ATPase can move Kt out of the cell effectively O Blocking Na* channels cannot help- it will only make his cells fire less, and he already has a weak heartbeat. Mr. M's cells are not repolarizing properly. Blocking Nat channels will help them repolarize normally, bringing their resting potential back to normal.

The correct answer is ''Mr. M's cells are depolarizing too easily. Blocking Na+ channels will make it harder for them to depolarize, bringing their sensitivity back to normal.''

Explanation:

Calcium administration is an emerging treatment modality aimed at restoring the transmembrane electrical gradient of cardiac myocytes. It probably achieves this goal by reducing the resting membrane potential of cells. Calcium antagonizes the effect of hyperkalemia on cardiac conduction, that is, it antagonizes the effects of K on the heart. Its onset of action is immediate, in a few minutes. Calcium gluconate antagonizes the excitability of the cardiac membrane, that is, it decreases the excitability of the membrane and it does not affect serum levels, it is generally accepted that calcium should be administered when there are ECG changes associated with hyperkalemia.

6 0
3 years ago
if a tall plant (TT genotype) is crossed with a dwarf planet (tt genotype), what is the probability the tree would b tall
Lena [83]
Tt Tt Tt Tt a 100% probability <span />
5 0
3 years ago
Read 2 more answers
Freshwater biomes have _______.
AnnZ [28]

The right option is; c. a salinity of less than 1%

Freshwater biomes have a salinity of less than 1%

The freshwater biome is a large community of plant and animals that live in water bodies with a salinity of less than 1%. Fresh water biomes include streams, rivers, ponds, lakes, and some wetlands. The fresh water biomes cover about 20% of the earth and they contain several species of fish and animals such as frogs, crocodiles and turtles.


8 0
3 years ago
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After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are
Romashka-Z-Leto [24]

After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are reformed into triglycerides.

<h3>Where are long chain triglycerides absorbed?</h3>

As previously mentioned, MCTs do not delay gastric emptying and are absorbed faster in the intestine than MCTs, being transported via blood to the liver.

In this case, long-chain triglycerides are oils or fats of vegetable or animal origin, and are obtained from the reaction between a fatty acid and glycerol.

See more about triglycerides at brainly.com/question/13840067

#SPJ11

8 0
2 years ago
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