You are called to investigate a lake in your home town, where the residents fear that a broken pipe from the local sewage treatment plant has turned the formerly pristine lake eutrophic. You test the water and find very low levels of oxygen. What stage of euthrophication is this lake in?

Answers

Answer 1

Answer:

The correct answer is - The decomposers decompose dead algae and plants which take up most of the oxygen.

Explanation:

Eutrophication is taken place when there is a high amount of nutrients, minerals are present in a waterbody which allow algae to grow rapidly and cause depletion of oxygen due to the decomposition of dead organisms. There are the following stages in the eutrophication process:

-  rapid growth of Algae and other plants

- due to algal bloom, the sunlight is blocked, and plants and organism start dying.

- The decomposers take up most of the oxygen by decomposition

- The animals start dying without oxygen


Related Questions

Mutations leading to changes that can be inherited by the next generation have to be introduced at the _______ level.

Answers

Answer:

same

Explanation:

Which property of matter is conserved in chemical reactions and shown by balanced equations?
mass
O volume
Odensity
O shape

Answers

Answer:

Density is conserved in chemical reactions and shown by balanced equations


Onion Cell mitosis

Answers

Answer:

onion cell have a lot of cell u such look it up how many cell do onion have

Answer:

ogres have layers.

How does petrification link to how the oldest fossils are found in the lowest rock

Answers

Answer:

Explanation:

In geology, petrifaction or petrification is the original material and the filling of the original pore spaces with minerals. Petrified wood typifies this process, but all organisms, from bacteria to vertebrates, can become petrified. Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals. Researchers at UCLA and the University of Wisconsin–Madison have confirmed that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and indeed the earliest direct evidence of life on Earth. The study, published Dec.

what effects do mutations have? Check all that apply. ​

Answers

Answer:

By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition

Answer:

answer a,c,e,f

Explanation:

it can change protein shape

might be neutral

might be harmful

might be beneficial

The cytoplasmic extensions that, together with the cell body, provide the main receptive surfaces for neurons are:_______.
a. dendrite.
b. axon.
c. cell body.
d. neuroglia.

Answers

Answer:

Dendrite

Explanation:

Dendrite with cell body are cytoplasmic projections that are present at the begin of neurons and help increase the cell body surface area through their extensions. The cytoplasm of dendrites and that of cell body have the same number of neurons. Dendrite receive electrical impulses from neurons and send those information to the sons.

are all qnswer right​

Answers

Answer:

yes good job!

Explanation:

Answer:

Explanation:

Yes great job

Which of the following and closes their DNA in a nucleus?

Bacteria
streptococcus
Frogs
Coli

Answers

Answer:

the answer is coli

Explanation:

Essential Question: Compare and contrast the structure and function of the major organelles found in plant and animal cells.​

Answers

Answer: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

Explanation:

This is from google

Which of the following is a reactant (input) of cellular respiration?
O energy
O carbon dioxide
O glucose
water

Answers

Answer: oxygen and glucose are reactants of cellular respiration

Explanation:

Oxygen and glucose is what is needed in order for the cellular respiration process to work

OX N GLUCOSE EEEE . Blank .

Dihydromyricetin (DHM), a chemical found in the moyeam plant of Asia, has shown the ability to treat certain
cancers.
Which of the following answer choices best describes a possible mechanism of action for this cancer drug?
Choose 1 answer:
А
DHM decreases apoptosis in cancer cells.
DHM decreases apoptosis in normal cells.
DHM promotes apoptosis in cancer cells.
D
DHM promotes apoptosis in normal cells.

Answers

Answer:

(C) DHM promotes apoptosis in cancer cells.

Explanation:

Since some cancers are caused by a lack of apoptosis (programmed cell death), DHM treats cancer by forcing apoptosis to occur in cancer cells, stopping their growth and division.

The choice which best describes a possible mechanism of action for this cancer drug is DHM promotes apoptosis in cancer cells. The correct option is C.

What is Dihydromyricetin (DHM)?

DHM is a chemical that is present in the plant, Hovenia Dulcis grow in Japan. It is a raisin plant and has several medicinal values. It is used in East Asia as a hangover medicine.

Apoptosis is a process of cell death, so if DHM promotes apoptosis in the cancerous cells, then it will reduce cancer by killing the cancer cells.

Thus, the correct option is C, DHM promotes apoptosis in cancer cells.

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Osmosis which is a form of passive transport

Answers

Answer:

represents the flow of water through its concentration gradient, through a semi-permeable membrane.

Explanation:

This means that water flows from where it is in a higher concentration to a place where it is in a lower concentration to try to equalize the concentrations of both solutions.

Osmosis is an example of diffusion when molecules tend to be evenly distributed in space.

What does the slope of the curve on a distance vs time graph represent?

Answers

Answer:

What does the slope represent on a velocity graph? The slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.

Explanation:

Brainliest please?

Practice Labeling the Cell. Label the parts of each cell.​

Answers

Hhikmberuujbbbbbbbbvv

Why is it difficult to know the impacts of deep sea mining?
O It has never been tried successfully, so we don't know exactly how it can be done.
Olt is only done in environmentally sensitive areas, where the organisms are being harmed in many ways already, and it is difficult to know the effects of mining.
We know relatively little about deep sea ecosystems, making it harder to assess the impact of mining.
O Most countries have laws against it, so the impacts have not been tested.

Answers

Answer:

I'm pretty sure its...

Explanation:

We know relatively little about deep sea ecosystems, making it harder to assess the impact of mining.

Deep sea mining has never been tried successfully, so we don't know exactly how it can be done so it is difficult to know the impact of deep sea mining.

what is deep sea mining?

The process of extracting and often excavating mineral deposits from the deep seafloor is known as deep-sea mining.

The deep bottom spans around two-thirds of the total seafloor and is found at ocean depths greater than 200 meters.

Deep-sea mining has been shown to affect marine biodiversity and ecosystems, but we still lack the knowledge and resources to safeguard them.

There are considerable gaps in our understanding of the deep sea's biodiversity and ecosystems since it is still understudied and poorly understood.

This makes assessing the possible effects of deep-sea mining and putting in place necessary safeguards to protect the marine ecosystem and the three billion people whose livelihoods rely on marine and coastal biodiversity challenging.

Hence , the correct option is A.

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1. What role do the oceans play in water cycle?
2 Where do you think sublimation of snow to water is most common?
Please help me my brain is fried from all this homework

Answers

Answer:

1. oceans act as reservoirs

2. sublimation of snow to water is most common as it falls to the ground for clouds.

Explanation:

A Punnett square showing a cross between two cats is shown below.
HH x hh
h
h
H
H
In cats, short hair (H) is dominant to long hair (h).
Using the punnett square above, what is the probability the offspring from this cross
would have long hair (hh)?
0/4
O 1/4
2/4

Answers

Answer:

0/4

Explanation:

All offspring will have the presence of the dominant trait in their genes, which will make them have short hair.

They will all have the geneotype Hh.

They would need hh to have long hair.

Where would an explosive volcano MOST LIKELY occur?
A) in the middle of a large plate of earth
B) where plates are coming apart
C) near the edge of a large plate of earth
D) where large plates of earth are colliding​

Answers

Answer:

d

Explanation:

The process of inducing changes in specific sections of DNA is referred to as?

Answers

Mutation it what it is referred to
It is mutation. Mutation causes changes in DNA

Identify the following carbohydrate

A. Monosaccharide

B. Disaccharide

C. Polysaccharide

D. None of the above

Answers

Answer:

Its A.

Explanation:

btw i love ur luffy pfp

your answer would be answer A

The Chatham Island robin is a small endangered bird found in scrub forests off the coast of New Zealand. The robin is preyed upon by introduced species such as cats and rats. In 1980, the population decreased to only 5 individuals and every individual today is a descendant of a single female. Which of the following is best illustrated in the decline of the Chatham Island robins?
1. Carrying capacity
2. Population bottleneck
3, Population overshoot
4. Type I survivorship

Answers

Answer: 2. Population bottleneck

Explanation:

A Population bottleneck is a term used to refer to an event that causes the population of a species to reduce in very large numbers. Such an event can be environmental disasters like famine, the overhunting of a species or the destruction of its habitat.

In the case of the Cha-tham Island Robin, the bottleneck event must have been the introduction of cats and rats which then went on to hunt the birds to near extinction.

How are molecules moved across the membrane during active transport? A. They slide through the small spaces in the membrane. B. They are moved using transport proteins and pumps. C. They attach themselves to the membrane and are pulled through

ASAP​

Answers

B. They are moved using transport proteins and pumps.

Answer:

B. they are moved using transport protiens and pumps

Explanation:

just took a test on this

How do moose use a learned behavior to protect themselves

Answers

Answer:

They roll in a pool of muddy water to avoid fly bites

Explanation:

Moose is the largest species of deer and inhabits the northern regions of Europe (Scandinavia), Siberia, Canada, and a large subspecies - the great moose - inhabits Alaska.

The moose is one of the first domesticated domestic animals. It was domesticated a long time ago - it is believed that it was about 4-5 thousand years ago, maybe even earlier.

Select the part whose main job is to direct a plant cell's activities by sending instructions to
different parts of the cell.

vacuole

chloroplasts

mitochondria

nucleus

Please hurry I’m in a rush

Answers

I think it’s the nucleus

Nucleus part main job is to direct a plant cell's activities by sending instructions to different parts of the cell.

What is the short definition of a plant cell?

Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.

Where can you find plant cells?

Roots, stems, leaves, flowers, and reproductive structures are only a few of the major classes of cells and tissues that are formed when plant cells differentiate from undifferentiated meristematic cells, which are similar to the stem cells of animals.

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One line with red flowers and the other line with violet flowers. You carry out a monohybrid cross and find that all of the F1 offspring have violet flowers, while 97 of 400 F2 offspring have red flowers.
Explain the inheritance of flower colour in this plant species.

Answers

Answer:

See the answer below

Explanation:

The inheritance of flower color in the plant species follows the simple dominance/recessive inheritance of Mendel. The red flower trait did not show up at all at F1 only for it to show up at F2. It simply means that the red flower trait is recessive while the violet flower color is dominant.

Assuming that the allele for violet flower color is designated as R while that of red flower color is designated as r.  The genotype of the violet flower would be true-breeding, RR, while that of red flower color would also be true-breeding rr:

                RR    x    rr

 F1         Rr    Rr    Rr    Rr  

phenotype ratio = all violet flower color

                 Rr    x    Rr

F2          RR    Rr    Rr    rr

phenotype ratio = 3/4 violet flower color and 1/4 red flower color

97 red flower offspring out of 400 is approximately 1/4.

Hence, the inheritance of flower color in the plant obeys a simple dominant/recessive Mendelian law with the violet color trait dominant over the red color trait.

Music > color should be read as: a. music on color c. music to color b. music before color d. music then color Please select the best answer from the choices provided A B C D

Answers

Answer:

C

Explanation:

The answerrrr is C . (:

can someone help me​

Answers

since in DNA adenine(A) pairs with thymine(T) and cytosine(C) pairs with guanine(G) the answer is D

Woodpeckers peck trees to find food and make nests. What would happen if
most of the trees are cut down?

Answers

Answer:

the wood packers wouldnt have a home to live in anymore. the effect of this means that the habitat for them and other animals is destroyed and they could start to die and become endangered species. this is my opinion

Explanation:

This is from what I have learned so far

and inheritance.
An organism's DNA guides growth, reproduction,
a.
Development
b
Photosynthesis
C.
Homeostasis
d
Organ function

Answers

Answer:

A. Development

Explanation:

This would be correct

Which of the following is a natural resource that could be used up someday?
OA. sunlight
ОВ.
gas
OC. wind
D.
water

Answers

Answer:

gas

Explanation:

gas is a limited source that one day we might run out of so that's why tesla made cars that run on electricity

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