1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
WITCHER [35]
3 years ago
9

The greatest source of both nitrogen and phosphorus entering most estuaries, such as chesapeake bay, is ________.

Biology
2 answers:
mr_godi [17]3 years ago
6 0

Answer;

Agriculture

Agriculture is the major source of both nitrogen and phosphorus entering most estuaries, such as chesapeake bay.

Explanation;

The largest source of pollution to the Bay comes from agricultural runoff, which contributes roughly 40 percent of the nitrogen and 50 percent of the phosphorus entering the Chesapeake Bay.

-Agricultural practices including over-irrigating farmland, over-tilling soil and over-applying fertilizers and pesticides, can push pollution into the Bay and its local waterways. Agriculture is the single largest source of nutrient and sediment pollution entering the Chesapeake Bay. The fastest growing source of nitrogen pollution to the Bay is polluted runoff.


Sergio039 [100]3 years ago
3 0

The Chesapeake bay is an estuary in United States. The presence of nitrogen and phosphorus in the estuary can cause harm to the aquatic species present there.

The main source of nitrogen in the Chesapeake bay is the agricultural runoff. The pesticides and the herbicides used in the agriculture may come along the runoff and get mixed with large rivers and water bodies. The nitrogen from agricultural runoff accounts approximately 40% of the total sources of nitrogen.

Hence, the correct answer is agricultural runoff.

You might be interested in
Yuko is Japanese and Elizabeth is American. Statistically, Yuko is more likely than Elizabeth to:
Sever21 [200]

Statistically, Yuko, who is Japanese, is more likely to express embarrassment when she is successful in a task, than Elizabeth, who is American.

<h3 /><h3>How is culture able to affect personality formation?</h3>

Culture corresponds to the set of values, habits and norms shared by a group. In Japan, for example, embarrassment is a cultural habit that represents the country's social identity and impacts the social and cognitive formation of the individual at different stages of life.

Therefore, the culture of embarrassment is important in Japan for expressing its identity in relation to itself, translating the historical values ​​that the Japanese are focused not on themselves, but on being of service to others.

Find out more about culture here:

brainly.com/question/25010777

3 0
2 years ago
Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mat
Marianna [84]

Answer:

C

Explanation:

This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).

N.B: let F represent the gene involved.

A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.

A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.

The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff

The resulting four offsprings will

be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1

4 0
2 years ago
If a human has an X and a Y chromosome pair, they are
algol13
With this x and y pair they are male
6 0
3 years ago
An oak savanna is predominantly a grassland with a sparse growth of oak trees. When oak trees lose their leaves, the leaves are
valentinak56 [21]

Explanation:

ooh u have big b ○○ bs can I touch it

7 0
2 years ago
In a large population of plants, notches in the leaves are caused by a dominant allele N and lack of notches by a recessive alle
Jobisdone [24]

Answer:

C

Explanation:

If the population is in equilibrium, the allele frequencies will be constant.

There is nothing about the heritability of dominant or recessive alleles that make dominant ones any more likely by nature. This rules out choices A and B.

Genetic drift mentioned in D refers to alleles leaving a population. Nothing like this was mentioned in the question, so count that answer out.

C is the only remaining answer by process of elimination. It is also the most logical choice. Directional selection refers to a process of natural selection wherein extreme phenotypes (notched leaves, or non-notched leaves) are favored. In this case, there may be some external pressure causing notched leaf plants to be more evolutionarily fit, meaning that they survive long enough to reproduce more and increase allele frequency of the dominant allele.

5 0
3 years ago
Other questions:
  • Which process produces a greater number of offspring? A) chromosome duplication. B) asexual reproduction. C) gamete formation. D
    12·2 answers
  • Which statements below is NOT TRUE based upon the information in the phylogenetic tree?
    9·1 answer
  • Which protein is predicted to be most resistant to denaturation by heat? a protein with many internal disulfide bonds a protein
    12·1 answer
  • Importancia de este tipo de reproducción de la mitosis
    14·1 answer
  • Single-celled, living organisms that can survive independently:
    5·1 answer
  • How is metaphase of mitosis different from metaphase I of meiosis?
    10·2 answers
  • Why is gasoline organic
    14·2 answers
  • In which parts of the alimentary canal is mucus secreted? Explain why.​
    5·1 answer
  • A 5kg book is placed on a 2.5m high shelf how much gpe has the book gained
    7·1 answer
  • Red imported fire ants are an ant species native to South America, but were introduced into the US in the 1950s.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!