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Mariulka [41]
3 years ago
5

Which condition is a result of using an anaerobic digester?

Biology
2 answers:
Elan Coil [88]3 years ago
3 0
The condition which is a result of using an anaerobic digester is B) increase in land fertility due to the addition of the nitrogen and phosphorous byproduct. 
musickatia [10]3 years ago
3 0

Answer: b. increase in land fertility due to the addition of the nitrogen and phosphorous byproduct

Anaerobic digestion is a process by which microorganisms breaks down complex biodegradable materials into simpler products, in the absence of oxygen. The anaerobic digesters hold the manure or any another form of organic matter which needs to be decomposed off in the absence of oxygen allows the extensive growth of microbes in it. The partially digested biodegradable waste in the form of slurry can be distributed over an agricultural land which can be useful in adding up the organic matter in the form of organic nitrogen and organic phosphorus produced as byproducts. The organic nitrogen and organic phosphorus are important elements are important for plant growth and development. Hence, the waste will increase the fertility of the land.  

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Populations evolve for many reasons. Suppose there is a population of plants that have either purple flowers or white flowers, a
sattari [20]

Answer: natural selection

Explanation:Natural selection, gene flow, gene drift and mutation are the mechanisms for EVOLUTION.

The dominant purple allele must have been acquired from previous parent gene, by natural selection

Definitely the available   alleles from previous flower population were white and purple flowers. But, because the parents of purple flowers exhibit VARIATION, in their gene pool,  they showed dominance over  the recessive white colour flowers in the same population.  

◼ from Darwin’s observation and deduction, Organisms who acquired certain characteristics from variation  tend to survive than others, and therefore pass these inheritable characteristics to their offspring.

◼Thus the purple flowers dominated the population for the available resources, among the other flowers colours, (competitions) therefore it leads to a stable population in size after a period of time., while the white colour flowers are recessive

◼Darwin concluded that, variants of best adaptation will be selected for by natural conditions operating in the environment of the population at that particular period (natural selection).

Based on this, natural selection takes place, and the purple flowers with best variation will have selective advantage (dominance)above white colour flowers(recessive).

Consequently, they have higher survival rates compare to white flowers in the population this is   survival of the fittest by natural selection of purple flowers

The frequency of the white colour flower will reduced because of less manifestation of traits from generation to generation from reduced gene pool due to recessive trait, however the frequency of Purple flower will increase because the number of copies of allele of purple flowers is greater than the total number of all the flowers population( white flowers+purple)

5 0
3 years ago
PLEASE HELP ME BEFORE I DROP OUT OF HIGH SCHOOL
Arlecino [84]

.What industry contributes to wetland loss in Louisiana?

"The swamps and marshes of coastal Louisiana are among the Nation's most fragile and valuable wetlands, vital not only to recreational and agricultural interests but also the State's more than $1 billion per year seafood industry.What part of Louisiana is most in danger from land loss?

Dozens of reports show the highest rate of land loss occurred in areas with the heaviest amount of oil and gas extraction and canal dredging, Marshall says. According to some studies, the oil and gas industry is responsible for anywhere between 36 to 60 percent of the loss.

8 0
2 years ago
Read 2 more answers
The somatic motor division consists of somatic motor neurons that innervate cardiac, smooth, and skeletal muscle cells. The soma
juin [17]

Answer: FALSE

Explanation:

The nervous system is the system that detects and responds to changes inside and outside the body. This system consists of the brain, the spinal cord and peripheral nerves. The structure and organisation of the tissues that form these components enables rapid communication between different parts of the body.

Parts of the nervous system includes:

--> Central Nervous System ( consists of the brain and spinal cord)

--> Peripheral Nervous System ( consists of nerves outside the brain and spinal cord).The two functional parts of the peripheral nervous system are made up of the sensory (afferent) and motor (efferent). The motor division is involved in activities that are voluntary (somatic nervous system) and involuntary (autonomic nervous system).

The somatic motor division consists of somatic motor neurons that innervates ONLY the SKELETAL MUSCLE for its voluntary actions while the autonomic motor neurons innervates the cardiac and smooth muscles. Therefore the statement is FALSE

4 0
2 years ago
Which of the following large-scale environmental catastrophes has the least effect on aquatic ecosystems?
JulsSmile [24]
B.
Deforestation affects ecosystems on land. there are no forests underwater

3 0
3 years ago
Read 2 more answers
Disulfide bonds are involved in maintaining ________ protein structure as well as the ________ level of protein structure exhibi
Whitepunk [10]

Answer:

tertiary; quaternary

Explanation:

The orientation of all the atoms of a protein in three dimensions represents its tertiary structure. It includes the folding of the polypeptide chains in a way that brings are far apart amino acids of its secondary structure close together. Various segments of a polypeptide chain interact to form tertiary structures and these segments are held together by different kinds of weak interactions.

However, disulfide cross-links between the segments of polypeptide chains also stabilize the tertiary structure of some proteins. Likewise, disulfide bonds also hold the protein subunits of some proteins together and thereby, contribute to the quaternary structure. For example, two light chains of an antibody are joined together by disulfide bonds.

4 0
3 years ago
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