reduced oxygen in water is an indicator of

Radioactivity in water
Bacterial absence in water
Goof water quality
Municipal of swwage in water ​

Answers

Answer 1

Answer:

Municipal of sewage in water ​

Explanation:

The municipal sewage water ​has a large number of microbes present in it that leads to lower level of oxygen in water. The reduction of oxygen in water occurs due to decomposition of algae present in water by microbes. Algae is responsible for the production of oxygen from the process of photosynthesis. When they are removed from an environment then no more oxygen will be produced which leads to decrease of oxygen in water.


Related Questions

How does inhibiting calcium helps to terminate skeletal muscle contraction

Answers

Answer:

The inhibition helps terminate contraction because once the outflow stops, the active transport of calcium is able to slow down and the troponin can change back to its original shape.

Explanation:

1. The energy stored in glucose is converted into a usable form, the energy source of all cells, ___________________ _________________ triphosphate, or ____________.
2. The equation for respiration is:
______________ + O2 -----> CO2 + H2O + ____________
3. Because oxygen is used to produce ATP, this is referred to as an _______________ process.
4. The release of energy cannot occur all at once. Too much ______ would be released inside the cells. Instead, the release of energy occurs in a series of ________________________________ small steps.
5. Plants do photosynthesis only when there is light, during the day. So, they take in _________ only during the day. But, they do respiration all the time, 24 hours a day. All living things do cellular respiration all the time or they are not alive. So, all organisms use _________, all the time.

Answers

Answer:

Adenosine diphosphate

How many paths through which charge can flow would be shown in a circuit diagram of a parallel circuit? more information is needed. none two or more one

Answers

Answer: More than 1

Explanation:

A parallel circuit is defined by having more than one path through which current can flow. This is in contrast to a Series circuit where the current flows through just one path.

Even though there are multiple paths for the current to flow through, the current flowing through all the paths must add up to the total current that is being supplied from the source.

Plants use CO2 in the process of photosynthesis to make

Answers

Answer:

food for less than a year ago today was a good day for you drink a lot of water and summer vacation visiting with you drink a lot of water and summer vacation visiting with you and your name and address in a bit in me in me in me in

they make sugar and oxygen

Helpp me . Is it A,B,C,D

Answers

Answer:

The answer is C. The GPS makes a task easier

Answer:

Its C

Explanation:

An organism has the following characteristics: cell wall, heterotrophic, unicellular, and prokaryote. What kingdom does it
belong in?
0 Animalia
O Protista
Plantae
O Eubacteria

Answers

Answer:

2nd

Explanation:

The answer is B if u read the text u will know it

A population is a group of conspecific organisms.
True or false?

Answers

Answer:

true I think

Explanation:

A population is a group of interbreeding organisms that are members of the same species living in the same area at the same time. Organisms that are all members of the same species, a population, are called conspecifics.

The graph shows how the activity of an enzyme changes at different temperatures. Which
statement best describes what happens to the enzyme when the temperature of the reac-
tion increases to 45 degrees Celsius?
X = optimal temperature
Rate of reaction
20 30 40 50
Temperature / "C
А
The enzyme is used up and the reaction stops.
B
The enzyme begins to decrease the rate of the reaction.
С
The enzyme continues to increase the rate of the reaction.
D
The enzyme changes shape and can no longer speed up the reaction.

Answers

B as the temp is too hot so the enzyme will slow done (and eventually denature this would be around 50 degrees becoming useless)

Answer: D

Explanation: The enzyme changes shape and can no longer speed up the reaction

-Just did this so it's right lol

a short paragraph explaining how natural selection occurred using the pocket mouse.

Answers

natural selection explain the change with time of darker mice into lighter mice? Because predators could more easily spot the dark mice on light sand. The lighter mice were more likely to survive and have offspring. Over time, the population became light colored.

which of the following does not take place in the mouth

Answers

Answer:

I. sorry but I didn't see options.

you didn’t post the options

PLS ANSWER ASAP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Answers

Tt you can thank me later

A gardener wanted to know if E-Z fertiliser would be good for his vegetables. He fertilised all his bean plants with E-Z fertiliser but didn’t put any fertiliser on his pepper plants. His beans didn’t do well at all, but he got a good crop of peppers. He concluded that E-Z fertiliser was no good. What are the errors in this experiment? Tick all that apply

A) Not enough subjects
B) Subjects were not similar
C) Conditions were not kept the same
D) The experiment was not reproduced

Answers

Answer:

B) Subjects were not similar

The errors in this experiment are: subjects were not similar and conditions were not kept the same. Hence the correct options are B and C.

Subjects were not similar: The gardener used two different types of plants, beans, and peppers, to test the effectiveness of E-Z fertiliser. Beans and peppers have different growth requirements, nutritional needs, and environmental preferences. By using different types of plants as subjects, the experiment introduces variability and makes it difficult to attribute the outcome solely to the fertiliser.

Conditions were not kept the same: The gardener applied E-Z fertiliser to the bean plants but did not provide any fertiliser to the pepper plants. This difference in treatment introduces a significant confounding factor, making it impossible to isolate the effect of the fertiliser on the bean plants' poor performance.

Hence the correct options are B and C.

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The esophagus is surrounded by smooth muscle. How does this structure help its function?

Answers

Answer:

the smooth muscle contracts a certain way so it works without you thinking about it

Explanation:

I hope this helped!!

Grasslands are most likely to be described as having
OA.
prairies and fertile soil.
OB. snow-capped mountains.
Oc. giraffes, gazelles, and rhinos.
OD.
tall trees and thick vegetation.
Undo

Answers

Answer:

A. Prairies and fertile soil

Explanation:  

Which of the following averages for temperature would best reflect an area’s climate?
Select one: Plz help NO LINKS Plz

Average temperature over 30 years.

Average temperature over three days.

Average temperature over three months.

Average temperature over three years.

Answers

Explanation:

average temperature over 30 years

hope it may help you

You should be familiar with the drugstore antibiotic ointment Neosporin (Triple antibiotic ointment), which is often thought of as innocuous. Based on your knowledge of antibiotics from Chapter 12 describe the mode of actions of the three antibiotics found in Neosporin (neomycin, polymyxin, and bacitracin), research their side effects, and postulate on why these three antibiotics were chosen.

Answers

Answer: Antibiotics are chemicals which, in low concentrations, can selectively kill or inhibit the growth of most pathogenic bacteria and are not harmful to humans.

Explanation:

Neosporin is a type of antibiotics which is used for the treatment or prevention of mild superficial infections. It consists of three active component, hence the name Triple antibiotic ointment. These active components, their mode of action and side effects include:

--> NEOMYCIN : This is one of the active components of Neosporin which inhibits the protein synthesis of an invading pathogenic bacteria through irreversible binding to the 30 S ribosomal subunit of susceptible bacteria. Their MODE OF ACTION is bactericidal meaning that the effect it has on the protein synthesis inhibits it's growth leading to the death of the bacteria.

SIDE EFFECTS: it can cause irritation, burning, itching, rash redness when applied topically.

--> POLYMYXIN: This is one of the active components of neosporin which attacks the invading pathogenic gram negative bacteria. In its mode of action, is the ability to combine with and disorganise structures of the bacterial cell which are responsible for the maintenance of the osmotic equilibrium of the cell thereby exposing the underlying peptidoglycan layer to lysozyme.

SIDE EFFECTS: Burning, redness, or irritation of the skin may occur.

--> BACITRACIN: This is also one of the active components of Neosporin. In its mode of action, it inhibits bacterial cell wall synthesis. This is achieved by preventing the final dephosphorylation step in the phospholipid carrier cycle, which interferes with the mucopeptide transfer to the growing cell wall.

SIDE EFFECTS: it may cause rash, itching/swelling (especially of the face/tongue/throat).

These three active components of Neosporin are combined to broaden the antibacterial spectrum. This means that at least one of the active components will effectively kill an invading pathogenic bacteria through its unique mode of action.

What is the most important part in the respiratory system?

Answers

The lungs.

The lungs are paired, cone-shaped organs which take up most of the space in our chests, along with the heart. Their role is to take oxygen into the body, which we need for our cells to live and function properly, and to help us get rid of carbon dioxide, which is a waste product.

What do organisms use "food" for?

Answers

Answer:

Organisms use food to provide the organism's energy

Explanation:

The facts of life :)

Now I'm hungry XD

Which of the following is NOT true about Earth’s systems? A.Together, the the geosphere, hydrosphere, atmosphere, and biosphere work to support life on planet Earth. B. Our atmosphere is the place that holds our oxygen. C. There are many systems, or, parts, that work independently. D. There are many , systems, or parts, of the Earth that work together.

Answers

Answer:

d

Explanation:

because each part and system as individual tasks or ways to help the earth

The statement that is not true is that there are many systems, or, parts, that work independently. The correct option is C.

What is Earth's system?

The application of systems science to the Earth is known as earth system science. It focuses on interactions and 'feedbacks' in particular.

The five Earth systems interact to create the environments we are familiar with.

Everything in the Earth's system can be classified as either land, water, living things, or air. These four components of the system are referred to as "spheres."

They are the "lithosphere" (land), the "hydrosphere" (water), the "biosphere" (living things), and the "atmosphere" (air).

The geosphere is split up into four subsystems: the lithosphere, hydrosphere, cryosphere, and atmosphere.

Because these subsystems interact with one another and with the biosphere, they work together to influence the climate, trigger geological processes, and influence life on Earth.

Thus, the correct option is C.

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Through which of the following do sperm cells travel to reach the urethra?

Epididymis
Vas deferens
Penis
Testes

Answers

testes i’m pretty sure

You are exploring a rather inhospitable planet, which has seas that are somewhat hydrophobic in nature. Surprisingly, there are living organisms in the seas whose cytoplasm is hydrophobic to a similar degree. These organisms have membranes made primarily of phospholipids arranged in a bilayer. What is the most probable orientation of these phospholipids A.hydrophobic tails facing towards the middle of the bilayer and the hydrophylic heads facing outward

Answers

Answer:

The correct answer would be: hydrophilic heads of the phospholipids face toward the middle of the bilayer with the hydrophobic fatty acid tails facing outward

Explanation:

In normal cases on earth, the lipid bilayer is arranged in a way that the hydrophilic head is present both inside and outside whereas the hydrophobic tail is present in the middle.

But in this case, the seas shows hydrophobic nature it can be predicted that the living organism whose cytoplasm is hydrophobic to the same condition that to interact with the environment the phospholipids bilayer arranged as the polar heads on middle while hydrophilic head on its inside and outside

The soil in rainforest are_________

Question options:

mediocre


rich in clay


nutrient rich


nutrient poor soil

Answers

Answer:

Nutrient poor soil

Explanation:

Because rainforest have very poor infertile.The soil also contains Less organic.

Or for simple answers wet forest bad, dry and healthy forest is good.

The soil in rainforest are nutrient poor soil.

What is Soil?

In soil science, a soil type is a taxonomic unit. A distinctive soil type is made up of all soils that have a certain set of well-defined features in common.

The phrase "soil type" refers to the study of soil classification, which is concerned with the orderly classification of soils. Every soil on the planet is a particular soil type.

Minerals, soil organic matter, living organisms, gas, and water are the five components that make up soil. Clay, silt, and sand are the three size classes for soil minerals.

The majority of soil types in hierarchical soil classification schemes are in the higher or intermediate level.

Therefore, The soil in rainforest are nutrient poor soil.

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Please help! Will mark brainliest.

Answers

Answer:

2nd one is the most realistic of what occurs in ecosyystems

B is more due to the structure going from greatest to least. That’s how a pyramid works!

which type of blood vessel normally contains valves to keep the blood flowing in One Direction
a) arteries
b) veins
c) capillaries ​

Answers

B) Viens

The veins have valves to keep the blood pumping out and not coming back in the heart.

True or False: Primary and secondary succession both end with the formation of a climax community.​

Answers

True

Have a good day

Place the following events in the order they occur by listing their assigned letters in that order. A. Cas9 REC domains binds to the guideRNA B. Cas9 complex binds to dsDNA C. Cas9 complex scans dsDNA for PAM sequence D. Cas9 unwinds dsDNA E. The programmable part of the guideRNA binds to its complementary sequence F. Cas9 cuts both strands to generate a double strand break

Answers

Answer:  a, b, d, c, e, f

Explanation: The steps of Cas9 DNA recognition and cleavage goes in the following order lettered A, B, D, C, E and F. Cas9 recognizes and binds the sgRNA after which it binds to the double stranded DNA. It then unwinds and scans the dsDNA for its protospacer adjacent motif sequence (PAM) and on recognition the sgRNA binds to its complementary sequence followed by cleavage of the DNA at two points. That is how the double stranded break is created.

An animal has 2 genes: 1 for tail length (T) and 1 for head shape (H). Its genotype is TtHh. What are all of the possible gametes that this organism can make?

Answers

Answer:

TH, Th, tH, th

Explanation:

This question involves two genes; one coding for tail length and the other for head shape. According to this question, an organism has the genotype: TtHh.

In accordance to the law of independent assortment, which states that alleles of one gene will segregate independently of one another. The meiotic division of the organism, will occur in such a way that only one allele of each gene is present in any GAMETE.

The possible gametes for the genotype: TtHh are: TH, Th, tH, th

1) What is the difference between traits and characteristics?

2) Can people with different parents still have traits in common?

3) You have a plant with yellow flowers and a tall stem. However, it is wilted because you forgot to water it. Identify which of the described traits of the plant is/are example(s) of those determined by heredity and those determined by the environment.

Answers

Answer:

1) the difference between trait and characteristic is that trait is an identifying characteristic, habit or trend while characteristic is a distinguishable feature of a person or thing.

2) Yes people with different parents still can have traits in common, for example two friends can both have a cleft-chin or a widows-peak.

3) The traits in this situation is the color of the flower (yellow), and the tall stem. But, the environmental part is the wilted part due to the dry environment(the lack of water).

Explanation:

hope that helps.

A machine that changes only the direction of a force has a mechanical advantage of ____.
a.
1
c.
10
b.
2
d.
100


Please select the best answer from the choices provided

A
B
C
D

Answers

the answer should be A.1

4. Convert this DNA sequence, ATTAG, to mRNA.

Answers

Answer:

UAAUC

Explanation:

in RNA, T => U

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