Why do dead zones lack the oxygen fish and other aquatic animals need to survive?

Answers

Answer 1

Answer:

Because most organisms need oxygen to live, few organisms can survive in hypoxic conditions. That is why these areas are called dead zones. Dead zones occur because of a process called eutrophication, which happens when a body of water gets too many nutrients, such as phosphorus and nitrogen.

Explanation:


Related Questions

Although half of the moon is always illuminated, usually only a portion of the Illuminated side is visible from earth. The diagram below represents the relative positions of earth, the son, and the moon. The positions of the moon or labeled 1-8.


Which of the Moon is the figure or in a crescent phase?

2 and 4
2 and 8
4 and 6
6 and 8

Answers

Answer:

There is no Answer

Explanation:

please help im stuck on this its about rocks

Answers

Answer:

C. Abrasion

Explanation:

Rusting, isn't caused by friction.

Dissolving isn't caused by friction either.

Neither is exfoliation.

^^ By the process of elimination we can conclude that the answer is in fact C, abrasion! Hopefully this helps! I hope you do well!

Help me with this please.

Answers

Answer:

just watch the video it gives you tge anwers

plants Which part of the carbon cycle occurs when plants, trees, or fossil fuels are burned?
A. Transpiration B. Oxidation C. Photosynthesis D. Combustion

Answers

I believe C- photosynthesis but I could be wrong.

Which climate zone receives the lowest insolation?
A. Polar
B. Tropical
C. Temperate

Answers

The climate zone which receives the lowest insulation is the Polar climate. Thus, the correct option is A.

What is Polar zone?

A polar climate is a place where the climate generally has a temperature range below freezing temperature, icy, and covered in snow from all the areas. These areas do not get any direct heat and sunlight from the sun. Polar climates are usually located at the North Pole of the Arctic, and at the South Pole on the continent of Antarctica.

The polar regions which are surrounding the Earth's North and South Poles belong to polar. The areas around the North Pole is called as the Arctic region. The area around the South Pole is called as the Antarctica region. These regions have a unique set of climates.

Therefore, the correct option is A.

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What is the main type of gas that drillers are trying to obtain from fracking (gas well drilling)?

a. methane gas
b. crude oil mix
c. map gas
d. mustard gas​

Answers

Answer:

a.) Methane Gas

Explanation:

Which of the following can cause the extinction of a species?
climate change
catastrophic events
interactions with other species
human activities

Answers

Answer: human activities

Explanation:

Which statement about photosynthesis and cellular respiration is true

a) Photosynthesis releases oxygen and respiration uses it
b) Respiration uses water and photosynthesis releases it
c) Photosynthesis uses oxygen and respiration releases it.
d) Both respiration and photosynthesis use oxygen from the atmosphere

Answers

Answer:

d

Explanation:

In biology what do we call two organisms that are the same?

Answers

Answer:

Symbiont

Explanation:

In a zoo located in a warm region, which should be included in the polar bear exhibit?

A food bowl with fruit

B hot, bright lights

C cold-water pool

D tall palm trees

Answers

Answer:

C Cold - Water pool

Explanation:

The two polar bear habitats are very different and provide unique experiences for the bears to investigate. To keep the bears cool, the floors in the Ice Cave are chilled by cold water running underneath and their pools are kept between 50 - 60°F. Keepers train the bears to voluntarily take part in preventative health care.

Do proteins build tissue

Answers

Answer:

Explanation:

Proteins are required for tissue to grow and repair themselves

Answer:

Yep

Explanation:

Without them, it would be impossible to build, repair or even maintain muscle tissue.

A _____
wave can travel in the absence of matter.
a. light
b.sound
c.seismic
d.water

Answers

The answer is b

Because it’s an electromagnetic wave in means it can transport energy through a region of space void of matter. To make it clear you can’t hear sound in space you can only see is light electromagnetic only transfer light.
I hope this helps
Common sense is b fs

Birds' beaks give us clues about their niches.


Using the attached diagram, identify three ways that beaks can differ as they meet the needs of their niches.

Plz answer

Answers

Answer:

That's correct most birds have diffrent shaped beaks for diffrent reasons for example some birds can tweezer beaks which helps to dig into the worm holes to get worms or help to drill into trees

Explanation:

Explain transformation in DNA

Answers

Plasmid or vector transformation is the process by which exogenous DNA is transferred into the host cell. Transformation usually implies uptake of DNA into bacterial, yeast or plant cells, while transfection is a term usually reserved for mammalian cells.

Which of the following soil pollutants is human-made, as opposed to naturally occurring?
O lead
O mercury
O petroleum hydrocarbons
O arsenic

Answers

Answer:

petroleum hydrocarbons

Explanation:

__________

Answer:

C. petroleum hydrocarbons

Explanation:

edge 2021

In the two step cellular process of transcription and translation
(A) chromosomes line up and then are pulled to opposite ends of the cell.
(B) stem cells develop in embryonic cells, which then form adult tissue cells.
(C) the DNA double helix is separated and then replicated to form two strands of DNA.
(D) a DNA sequence is copied to form an RNA sequence, and then copied to form a protein.

Answers

Answer:

The answer is D

A is cell division, B is some stage of pregnancy, and C is DNA replication.

7. What is the water cycle ?

Answers

Answer:

Explanation:

the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

Answer:

Precipitation, Evaporation, Condensation

Explanation:

The water cycle is the path that all water follows as it moves around Earth in different states. Liquid water is found in oceans, rivers, lakes—and even underground.

as the hare population increases there is in increase in the lynx population explain why this occurs

Answers

Answer: The lynx population increases as the hare population increases because there are more prey for the lynx to eat. The Lynx population also increases because there is more food for them to eat. What does the increase in the lynx population lead to? It leads to a decrease in the hare population because the lynxes were eating the hares. What happens to the lynx population when the hare population goes up? Continued predation due to high populations of lynx and other predators increases the hare population decline. ... As hare numbers start to decline, lynx continue to eat well because they can easily catch the starving hares. When hares become scarce, lynx numbers also decline.

Hope this helps........ Stay safe and have a Merry Christmas!!!!!!!!! :D

The changes in the population of one species can have a significant impact on the population of another species within the same ecosystem. Therefore, when hare population increases, there is in increase in the lynx population as well.

What is predator-prey cycle?

A predator-prey cycle is a cycle where if the prey population increases in size, it leads to an increase in predator population size due to availability of more food.

The relationship between the hare and lynx populations is a predator-prey dynamics. When the hare population increases in size, the lynx population also increases due to availability of more food.

When there are more number of hares, the lynx hunts them more easily which causes an increase in lynx population. However, the increase in lynx population leads to more consumption of hares, that leads to decrease in the hare population. With fewer hares available, the lynx population then starts to decline leading to a cyclical pattern of population growth and decline.

Therefore, this type of relationship is a predator-prey cycle which describes changes in the population of one species can have a significant impact on the population of another species within the same ecosystem.

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List four foods made by fermentation.​

Answers

Answer:

Sauerkraut

Cheese

Salami

Yogurt

Explanation:

"Fermentation is the breakdown of carbs like starch and sugar by bacteria and yeast and an ancient technique of preserving food."

gynoceium with United carples is called as​

Answers

Answer: Gynoceium with united Carples is know as SYNCARPOUS.

Explanation:

The vegetative organs of plants includes the stem, root and leaves. The stem which is the basic organ gives rise to other plant organs which includes the floral organs.

Floral organs are made up of:

--> sepals

--> petals

--> stamens

--> carpels

The carpel is the individual unit of the GYNOECIUM and has a stigma, style, and ovary. GYNOECIUM which is the female reproductive part of flowering plant can be monocarpous (when the carpels occurs in a single form), or apocarpous ( when there are multiple unfused carpels), or SYNCARPOUS (when there are multiple fused carpels).

Answer:

It is considered monocarpous if a gynoecium has a single carpet. If there are several distinct (free, unfused) carpets in a gynoecium, then it is apocarpal. If a gynoecium is "fused" into a single structure with several carpets, it is syncarpic.

Explanation:

Hope this helps

A bullhead belongs to what family of fish?

Answers

Answer:

If you are talking about a Catfish Bullhead, then they are related to the Catfish family.

Answer:

They are related to the Catfish family.

Explanation:

The exchange of carbon dioxide and oxygen during Photosynthesis and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at what level

Answers

Answer:

Stable levels....

Explanation:

The exchange of carbon dioxide and oxygen during photosynthesis (Figure below) and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at stable levels. Cellular respiration and photosynthesis are direct opposite reactions.

hope it helps you

pls mark me as branliest

I Organisms can be dassified based on homology, which is shared characteristics inherited from a common ancestor. In the past, homologies were based on studies of anatomical structures and patterns of embryonic development. In more recent years, the use of molecular biology techniques has allowed homologies to be compared at the level of nucleotide sequences. Nucleotide sequence comparisons are possible because all organisms share which of the following?​

Answers

Answer:

DNA Bases

Explanation:

It can't be cellular organelles, division of the nuclear chromosomes, and types of proteins needed for cellular functions, so the answer is DNA bases.

Which structure is responsible for allowing material into and out of an animal cell?
Group of answer choices

ATP transfers energy within a cell

ATP controls protein synthesis in a cell

ATP moves material out of a cell

ATP collects wastes for a cell

Answers

Answer: ATP moves material out of a cell

Explanation:

srry if it is wrong have a good day

What is a compound give an example?

Answers

Answer:

2 elements chemically joined together. An emample is Ironoxie

Explanation:

Answer:

A compound is a mixture of elements.

Explanation:

examples:

Calcium carbonate

Potassium nitrate

Hydrogen peroxide

Water

What is the purpose of cellular respiration

Answers

Answer:

Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP (adenosine triphosphate)

Explanation:

Answer:

The purpose of cellular respiration is to transfer energy from glucose to ATP. This is important because we need energy, and we use it to move.

What effect does the Earth spinning on its axis have on winds and currents?
The density of the water is increased causing the water to sink, forming deep ocean currents.
B) Global winds will move along a curved path and therefore cause ocean currents to curve.
Global winds will move along a straight path and will have no effect on ocean currents.
The moon's gravitational pull on the Earth is increased, causing water to move up the coast.

Answers

Answer:

B) Global winds will move along a curved path and therefore cause ocean currents to curve.

Explanation:

Earth rotation can be defined as the amount of time taken by planet earth to complete its spinning movement on its axis.

This ultimately implies that, the rotation of earth refers to the time taken by earth to rotate once on its axis. One spinning movement of the earth on its axis takes approximately 24 hours to complete with respect to the sun.

Basically, the effect of the Earth spinning on its axis have on winds and currents is that Global winds will move along a curved path and therefore cause ocean currents to curve. As a result of the Earth's rotation on its axis, a phenomenon known as Coriolis effect arises. Coriolis effect occurs when circulating winds are deflected to the left in the southern hemisphere and to the right in the northern hemisphere.

Hence, rather than have this air circulating in a straight pattern, it is deflected to the left of the southern hemisphere and to the right of the northern hemisphere, typically in a curved path or pattern.

Which describes something that occurs during translation?

Answers

Answer: In translation process, the messenger RNA (mRNA) template is used to create amino acid chain by which a protein is formed. Translation is the process of synthesis of proteins from amino acids which the help of mRNA

Answer:

c

Explanation:

The difference between a control group and an experimental group is the ___?

a.) dependent variable
b.) hypothesis
c.) theory
d.) independent variable

Answers

Answer:

I think its letter d........

Poster Requirements: It may be done on a

Answers

there is no context so therefore we cannot helpsorry
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