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givi [52]
3 years ago
9

Which of these is a technique used in forest management, farming, prairie restoration or greenhouse gas abatement where a fire i

s started intentionally during the cooler months to reduce fuel buildup and decrease the likelihood of serious hotter fires. It also stimulates the germination of some desirable forest trees, thus renewing the forest.
Biology
2 answers:
Dafna11 [192]3 years ago
7 0
This is called 'controlled' or 'prescribed' burning. Usually fires in the environment are regarded as undesirable and dangerous, but fires actually fulfil an important ecological role, and animals and plants had adapted to a certain frequency and intensity of fires. The seeds of some trees or grasses germinate after forest or grass fires, as the more open conditions after a fire allows the seedlings to compete and avoid being shaded and smothered by more established trees. Unfortunately, farming and forestry practices have in many cases resulted in a reduction of fires. A reduction in the frequency of fires also allows the build up of dead wood, and when a wild fire does occur, the amount of available fuel results in very hot, large and damaging fires. Therefore, management of forests and other environments such as prairies often use controlled burns to avoid the buildup of dead organic mass and to replicate the natural fire cycle.
Damm [24]3 years ago
7 0

Answer:

B) controlled burn

Explanation:

if you are doing it on usatestprep that is.

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A cell with six chromosomes undergoes mitosis how many chromosomes does each daughter cell have
Semenov [28]

Answer:

I may be wrong

Explanation:

But they have 46 chromosomes

3 0
3 years ago
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An increase in the amount of ultraviolet light entering the atmosphere through holes in the ozone layer will most likely
vladimir1956 [14]

cause an increase in the rate of certain mutations

3 0
3 years ago
What is the relationship of nitrogen and grass
fredd [130]

Nitrogen is the major nutrient required by grass and is used to stimulate high growth rates and is key to achieving high yields, however if too much nitrogen is applied this can have a negative effects on quality.

High rates of nitrogen can also cause problems with silage fermentation due to excess nitrate having a negative impact on the fermentation process and will produce silage that is less palatable and the animals will be less keen to eat it.

<span> <span> </span> </span> <span> Nitrate is generally taken up by grasses quicker than it is incorporated into proteins and until used this excess known as luxury uptake is stored in the leaves. Excess nitrate will be present if insufficient time is allowed between application and mowing and can also occur under conditions of poor growth eg low light levels, cool temperatures. It is also a problem if there is a dry spell after application, when nitrate cannot be taken up by the roots, followed by a period of wet weather that results in luxury uptake. The plant cannot convert it to protein quickly enough so it accumulates in the plant. </span>

High rates of nitrogen may cause a reduction in crop sugars as they are used to provide energy for the increased rate of plant growth and for the manufacture of plant proteins and this increased growth rate may in turn lead to lower crop dry matter content although in practice this is often not significant.

Excess nitrate can be avoided by following the Grassland Rule to apply nitrogen at the rate of no more than 2.5 kg N/ha/day.


7 0
3 years ago
What does it mean when it is said that all living things have a universal genetic code
nydimaria [60]
We all have a common ancestor hence we have some form of a universal genetic code
6 0
2 years ago
What if a mutation caused a change in the code so the message read GAG instead of GAC? 
How would this affect the protein produc
Anarel [89]

Answer: There will be no effect on the protein produced

Explanation:

According to the genetic code, the triplet codon GAG code for the amino acid, glutamate, while GAC code for aspartate.

Since GAG and GAC code for amino acids with similar properties (aspartate and glutamate are both acidic amino acids due to the extra carboxyl group present in their side chain), the change in nucleotide is still similar to the original, so will result in a different amino acid sequence, but will not alter the function of the protein at all. Thus, this kind of mutation is called silent mutation.

3 0
3 years ago
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