A team of deep-sea divers and biologists is exploring the open ocean. As team members dive downward from the surface, they observe significant changes to the ocean community at a depth of about 200 meters. What is the main cause of the changes at this depth?

A. loss of brightness of the water
B. increasing salinity of the water
C. increasing temperature of the water
D. decreased oxygen concentration of water

Answers

Answer 1

Answer:

A

Explanation:

sunlight is the main change. sun light cannot penetrate into the deep layers of the ocean and availability of oxygen is also low there. this causes the considerable amount of organisms to live in the upper layers of the ocean and we can only observe decomposing organisms in the deeper layers!


Related Questions

hello, i need help with this :]

Answers

Answer:both would be an unshaded square

Explanation:because if they both have the same thing and it doesn’t say either are shaded then they aren’t shaded

Why are bacteria called the borderline between plants and animals​

Answers

Answer:

it's because they have the both characteristics of plants and animals

example:-

bacteria have cell wall that is a characteristic of the plants.but at the same case they also produce some nucleic acids that are only found in animals.

so, they are the borderline between plants and animals.

Explanation:

brainliest plz

16. Which of the following stimuli would cause the liver to produce more glycogen?

Some people say it’s B or C, which one is correct?

Answers

The answer should be C

quién me ayudaría a hacer este crusigrama
gracias ​

Answers

Answer:

Respuesta: hola ami me parece que ya lo hiciste pero te dejo ejemplos:

Explicación: 1.Venezuela

2. Sanclemente

3. Marroquin    

me das corona plis chau

Explanation:

why are the offspring of asexually reproducing organisms genetically identical to their parent?

Answers

Answer: Because thear is only one parent.

please help me nowwwwwwwwww it is not D

Which of the following best describes sickle-cell anemia?

A) Caused by environmental factors that an individual was exposed to during pregnancy.
B) A hereditary genetic mutation that causes a resistance to malaria.
C) An inherited disorder that increases the risk of contracting malaria from mosquitos.
D) A genetic mutation that is inherited from a dominant allele of one parent.

Answers

Answer:

A.

Explanation:

This is when a female reproduces alone

Answer:

Sickle cell anemia is one of a group of disorders known as sickle cell disease. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels.

Explanation:

Based on "Sickle cell anemia is an inherited red blood cell disorder" taken from the text, I would say the correct answer is C, because it says "an inherited disorder" and describes Sickle cell anemia.

Hope this helps! :D

Someone help and plz make sure it’s right :) will mark brainiest

Answers

Answer:

total # of species

Explanation:

species richness is a number of different species represented in the ecological community landscape or region.

Answer: Species richness is the number of different species represented in an ecological community, landscape or region.

Ellie loves to canoe out at Sebago Lake. One summer day she went out on the water and gave her dad a call
on her cell phone to let him know she was okay. Although she was comfortable out on the water, her dad,
back on land, was suffering tremendously from the heat. Explain why Janet felt cooler than her dad, even
though they were within a mile of each other.

Answers

Ok I M very confused

how does oxygen have a direct effect on sea urchins

Answers

Answer:

When the oxygen level is low in a Purple Sea Urchin, muscles associated with Aristotle's Lantern pump fluid through its body (through the canals). Carbon dioxide (waste/not good stuff) is released through the anus. The Purple Sea Urchin obtains oxygen through diffusion only (the diffusion of oxygen into the organism).

Explanation:

Brainliest please

Sea urchins breathe through their feet tubes because of nonavailability of lungs and gills in them.  When the oxygen level is low at that time, the sea urchins pump fluids through their anus.

How are sea urchins able to survive sea ?

Sea urchins are able to survive in sea because of the tiny hair called spines  present on their body as  water currents are created because of the hair and waste gets washed away with the water currents created.

When the carbon dioxide level gets increased in the sea at that time the skeletal structures of the marine animals are also affected.

The shells made up of calcium also gets affected because of the increasing acidity in the water. Carbon dioxide not so good is released through the anus and  this totally affects the normal regulation of the creature.

Learn more about  relationship between oxygen and  carbon dioxide on sea urchins at :

https://brainly.com/question/14373450

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hans and zacharias janssen contribution to cell theory

Answers

Answer:

1590’s

What year did Hans and Zacharias Janssen contribute to the cell theory? Hans and Zacharias Janssen are known for inventing the compound optical microscope. They made it in the 1590’s. This contributed to “The Cell Theory” by making it easier and more practical whilst observing cells.

Explanation:

Cell theory states that all biological organisms are made up of cells, which is the structural and functional unit of life.

Scientists Hans and Zacharias Janssen invented the compound microscope that played a vital role in observing cellular functions.

Hans and Zacharias Jansen invented the compound microscope, which consisted of the eyepiece and an objective lens.

The scientists discovered the compound microscope in the late 16th century, which then helped many scientists to magnify and observe the microscopic structures.

Thus, the Janssens discovered the compound microscope.

To know more about Janssen, refer to the following link:

https://brainly.com/question/25747712

describe the appearance of the vacuole in a well watered plant

Answers

Answer:

Describe the appearance of the vacuole in a well-watered plant. What effect would this have on the cell wall of the plant? The vacuole would expand and take up most of the space inside the cell. This would create internal pressure on the cell wall.

Explanation:

what is the role of the enzyme aromatase in sexual differentiation in reptiles?

Answers

Answer:

Aromatase helps to convert sex steroids, a group of hormones that influence sex development and reproduction, from male sex hormones (androgens) to female sex hormones (estrogens)

Explanation:

hope it helps you

Which type of ATP production requires oxygen?​

Answers

Answer:

Cellular respiration

Answer:

Cellular respiration

Explanation:

because it needs it to release energy from food for use by cells.

Unicellular organisms have different structures from each other.Explain why.

Answers

Answer:

The reason why is because in the process of reproduction; there are some mistakes in DNA replication (out of billions of base pairs about 120,000 mistakes). This is what brings us so much variation in organisms.

the contractile organelle of skeletal muscle fibers is

Answers

Answer:

The myofibrils are the contractile organelles in the muscle fibers.

Organs such as the heart serve e function of working together as components of-

Answers

Answer:

the circulatory system

Explanation:

for instance your heart, your lungs,your blood, and your blood vessels all work together as a team.

Why are chromosomes arranged in homologous pairs in meiosis

Answers

Answer:

They allow for the recombination and random segregation of genetic material from the mother and father into new cells.

Explanation:

Entre las personas , la practica de estilos de vida denominados saludables ¿que consecuencias tiene sobre su metabolismo?

Answers

Answer:

El estilo de vida es una expresión utilizada para describir la forma en que se entiende o se percibe la vida. Este concepto no tan filosófico, sino más bien al estilo característico en que desarrolla  de vida. Estos aspectos abarcan, relaciones personales, del consumo, y la forma de vestir. Ademas de ello, en la descripción de las actitudes, aptitudes, y preferencias que refleja un individuo en la sociedad.

Por su parte, se puede decir que el metabolismo es el conjunto de reacciones químicas a partir de los alimento, las cuales se desarrollan en el cuerpo con la finalidad de producir energía necesaria para el desarrollo del ser vivo.

Con todo esto, se puede decir que el estilo de vida, específicamente el consumo de alimentos pueden afectar de manera importante el metabolismo en un sentido que de acuerdo a las características de los productos que se consuman, las reacciones químicas generadas pueden variar.

Asimismo, dichos factores pueden ser de riesgo o generadores de bienestar, ya que alteran de manera directa el proceso dinámico de degradación de alimentos.  

Explanation:

which statement is true regarding the agricultural production of genetically modified organisms

Answers

Explanation:

GMO stands for genetically modified organisms. The DNA of these organisms have been genetically altered through the techniques of genetic engineering which makes the organism better than its wild variety. These genetically altered organisms are also known as transgenic as they consist.

Genetically modified organism  are in widespread use nowadays. But some reports shows that they might causes some health risks and may even lead to cancer. Thus, option D is correct.

What is genetically modified organisms?

Genetically modified organism or GMOs are plants or animals with recreated or specially designed genes. The genetic modification is carrying for acquiring desirable characteristics and flourishment in growth.

Genetically modified crops will grow easily with inserted properties and characteristics. However they contains certain toxins that will effects human beings.

Health issues such as reproductive disorders, hepatic and pancreatic disorders, allergic reactions and even cancer. Therefore, genetically modified organism creates problems rather than their benefits.

Hence, option D that is, GMOs may be hazardous to human health in ways that we cannot yet understand is correct.

To find more about GMOs, refer the link below:

https://brainly.com/question/28211337

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your  question is incomplete and your complete question probably was:

Which of the following are true regarding genetically modified organisms?

a) Widespread use of GMOs may promote a loss of biodiversity.

b) No scientific evidence has been found that GMOs pose any special risks to humans or the environment.

c) GM plants make up a significant part of our food supply.

d) GMOs may be hazardous to human health in ways that we cannot yet understand.

e) GMOs can be more nutritious than standard crops.

what is the life cycle of a liverhook​

Answers

Answer:  

Image result for what is the life cycle of a liverhook​

Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.

Explanation:

Which RNA nucleotide is complementary to thymine?

adenine

uracil

guanine

cytosine

Answers

Answer:

uracil

Explanation:

uracil ofc ig yuh

List two characteristics of Coelenterata and Nematoda each.​

Answers

Answer:

What are the two characteristics of Coelenterata?

Characteristics. All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.

What are the two characteristics of Nematoda?

Their body is bilaterally symmetrical and triploblastic. They are cylindrical in shape. They exhibit tissue level organization. Their body has a cavity or pseudocoelom.

Explanation:

Guys please help me this is my second time asking the same thinggg pls

How are coastal ecosystems a major source of oxygen for the rest of Earths waters?

Answers

Answer:

The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.

Explanation:

These plants produce oxygen as a byproduct of photosynthesis, a process which converts carbon dioxide and sunlight into sugars the organism can use for energy. (hope this helps <3)

What U.S regions would you recommend against placing spotters?

Answers

Answer:

I would reccomend the southeast region against placing spotters.

Explanation:

Answer:

I would recommend the northeast and nortwest region of the us against placing spotters.

Explanation:

During the time of pandemic how Embroidery helps you become productive as a member of the family?

Answers

Answer:

It helps deal with stress, taking your mind on the task at hand. Trying something new can be fun and even productive around the house.

Please heeelp. :(
I don't understand anything about this topic, its urgently.

Answers

Question 3 you could say that…
The closer you are to the equator (30N-30S) the more solar radiation present. This leads to, less clouds appearing in them areas and the climate bring quite hot.

Wha is biology and how it started and what kind of biology is this

Answers

Answer:

Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms

Explanation:

Answer:

Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms

11. In the carbon-fixing stage, ATP and NADPH are used to convert CO2 into?

12. What is another name for the Calvin Cycle and why?​

Answers

Explanation:

G3P

This process is called carbon fixation, because CO2 is “fixed” from its inorganic form into organic molecules. ATP and NADPH, which were made during the light dependent reactions, use their stored energy to convert carbon dioxide into a three-carbon compound called G3P.

Answer:

11. This process is called carbon fixation, because CO2 is “fixed” from its inorganic form into organic molecules. ATP and NADPH, which were made during the light dependent reactions, use their stored energy to convert carbon dioxide into a three-carbon compound called G3P.

12. The Calvin cycle is another name for the light-independent reactions. This is a biosynthetic multi-step reaction that fixes carbon dioxide to ribulose.

PLS HELP WILL MARK BRAINLYIEST What is a rule for making a positive atom which has positive charge?

Answers

Answer:

the octect rule

Explanation:

Explanation:

If there are more protons than electrons, then the element is a positive ion. If there are more electrons than protons, then the element is a negative ion.

in a typical animal, mitosis produces _________, while meiosis produces____________.

Answers

In a typical animal, mitosis produces two identical daughter cells, while meiosis produces four unique daughter cells.

Meiosis is a type of cell division that involves the parent chromosome being halved and then divided again to form four unique daughter cells which have only one copy of chromosome from the parent.

This process occurs in sex cells such as the sperm and egg cells.

Mitosis is also a type of cell division but occurs with the parent cells to form two identical daughter cells.

This type of cell division have produces the same number of chromosomes the parents have and occurs in cells of the body which undergoes growth or during replacement of worn-out tissues.

Read more on https://brainly.com/question/25181279

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