Research endangered marine mammals of ocean and polar ecosystem. Write a 100or more words on the factors that have caused this mammals to become endangered.

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Answer 1

Answer: hunting and capture by humans

Explanation: Principal anthropogenic threats to the survival of marine species include fisheries interactions (entanglement in nets and lines), hunting and capture by humans, ship strikes, pollution and habitat degradation, and climate change.


Related Questions

need help on this question!!!

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Answer:

I think it's The Kingdom

compare the plants that live in deserts with the plants that live in the tundra biome.

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Answer:

Both desert and tundra plants grow and flower quickly in the short growing season.

Desert plants have special structures that allow them to trap and store water.

Tundra plants grow low to the ground to stay out of the cold and dry wind.

Plants in the desert and tundra both develop and bloom swiftly. Plants in the desert have unique that enable them to capture and store water. To avoid the cold, dry wind, tundra plants grow low to the earth.

What is in the tundra biome?

Tundra is the coldest biome of all of them. The Finnish name for tundra is tunturi, which meaning treeless plain. It is well known for having landscapes that have been formed by frost, very cold temperatures, little precipitation, insufficient nutrients, and short growth seasons. A dead organic substance acts as a source of nutrients.

What are the characteristics of the tundra biome?

Tundra habitats, which are defined by their lack of plants and severe environments with minimal rainfall, are found in the Arctic and on mountain summits. The majority of the year, tundra areas are covered in snow, but the summer brings bursts of wildflowers.

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what is true of a fossil that is classified as a transitional form?

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Given our understanding of the situation, we can confirm that a fossil classified as a transitional form, will show characteristics both of its ancestors and of the descendants that derived from it.

Transitional fossils are just that, fossilized remains of a transitional phase of evolution. What this means is that as species evolve, there will always be a point in time where a species is at a halfway point in between the species from which it comes, and the species that it will become.

These fossils, due to being a halfway point, will have characteristics that belong to their ancestors, but also characteristics that belong to their descendants, which is only logical considering that evolution is a process that spans many generations, not something instant.

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homeostasis in unicellular organisms depends on the proper functioning of....?

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Answer:

organelles

Explanation:

A student is conducting an experiment with biochemical reactions and notices that at high temperatures, the reaction rate decreases significantly.

Which statement best explains the decrease in reaction rate?


The bonds of the substrate were breaking.

The enzyme bonded with the substrate.

The enzyme denatured and changed shape.

The activation energy was increasing.

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Answer:

The enzyme denatured and changed shape

Explanation:

Enzymes are proteins, which can only function properly within a certain range of temperatures- when things get too hot, proteins undergo a structural change and are considered to be 'denatured'. This means that enzymes will not be able to function properly under those high temperatures, because the substrate bonding site would no longer be the right shape for said substrate.

The statement best explains the decrease in reaction rate is the enzyme denatured and changed shape. Thus option 3 is correct.

What are enzymes?

Enzymes are defined as a material that functions as a catalyst in living things, controlling the pace at which chemical processes take place without changing the substance itself.

There are six types of enzymes.

HydrolysesOxidoreductaseLyasesTransferaseLigasesIsomerase

The functions of enzymes are:

In human bodies, enzymes facilitate metabolic reactions. From breathing to digestion, they support.Health issues might result from having a too amount or too little of a certain enzyme. To help their bodies function as they should, certain persons with chronic diseases may need to take enzyme supplements.

Thus, the statement best explains the decrease in reaction rate is the enzyme denatured and changed shape. Thus option 3 is correct.

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most of the energy that your brain uses comes from

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Answer:

Glucose

Explanation:

The brain is an energy-hungry organ. Despite comprising only 2 percent of the body’s weight, the brain gobbles up more than 20 percent of daily energy intake. Because the brain demands such high amounts of energy, the foods we consume greatly affect brain function, including everything from learning and memory to emotions.

Just like other cells in the body, brain cells use a form of sugar called glucose to fuel cellular activities. This energy comes from the foods we consume daily and is regularly delivered to brain cells (called neurons) through the blood.  

Studies suggest the quality of the foods consumed over a lifetime affects the structure and function of the brain. For instance, the consumption of omega-3 fatty acids found in fish provides structural material to maintain neurons. Studies also suggest omega-3 fatty acids are essential for the transmission of information between brain cells. In contrast, foods that are rich in sugars and saturated fats have been found to promote oxidative stress, which leads to damage to cell membranes.  

The food you eat also affects molecules in the brain that support cognition. Some foods, such as those with turmeric, support cognition by helping to maintain molecular events related to energy metabolism.

Recent studies suggest lifestyle choices that affect the metabolism of nerve cells, such as diet and exercise, may in some cases provide a non-invasive and effective strategy to counteract neurological and cognitive disorders.

Write a hypostasis based on observations on identifying unknown materials and scientific principals.

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Answer:

Until the past decade, scientists, research institutions, and government agencies relied solely on a system of self-regulation based on shared ethical principles and generally accepted research practices to ensure integrity in the research process. Among the very basic principles that guide scientists, as well as many other scholars, are those expressed as respect for the integrity of knowledge, collegiality, honesty, objectivity, and openness. These principles are at work in the fundamental elements of the scientific method, such as formulating a hypothesis, designing an experiment to test the hypothesis, and collecting and interpreting data. In addition, more particular principles characteristic of specific scientific disciplines influence the methods of observation; the acquisition, storage, management, and sharing of data; the communication of scientific knowledge and information; and the training of younger scientists.1 How these principles are applied varies considerably among the several scientific disciplines, different research organizations, and individual investigators.

The use of restriction enzymes and electrophoresis to generate a map of the DNA molecule is known as

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The use of restriction enzymes and electrophoresis to generate a map of the DNA molecule is known as RESTRICTION MAPPING. This technique is used to map an unknown fragment of DNA.

Restriction enzymes are enzymes that cut a DNA fragment at specific nucleotides sites, thereby generally smaller fragments of DNA.

Restriction mapping is a strategy used to map unknown fragments of DNA by digesting them into smaller fragments and then identifying the specific sites of the DNA breakpoints.

Restriction mapping can then be used to create a diagram of fragments of DNA marked with specific sites where they are cut by specific restriction enzymes.

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name four classes of arthropod ​

Answers

Answer:

insects

myriapods

arachnids

crustaceans

which choice is considered an integral membrane protein?

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Answer:

not sure if this is multiple choice but the answer is a protein with its N-terminus in the cytoplasm and its C-terminus in the extracellular space

PLEASE HELP ME IM TIMED!

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Answer:

Prokaryotic and anaerobic

Hope this helped

how does carbon and nitrogen contribute to global warming?

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Explanation:

Lower nitrogen levels in soil promote release of carbon dioxide from soils under high levels of atmospheric carbon dioxide, and could therefore contribute to furthering rising atmospheric greenhouse gases and climate change

Energy from the sun , carbon dioxide from the atmosphere and water absorbed by the roots react to produce?

Answers

Answer:

What's your question?

Maybe Your talking about Photosynthesis

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

This is photosynthesis so energy from sunlight, Co2 and water creates oxygen and energy in the form of sugar

the who, the animals, the kinks, and the yardbirds were all part of the __________.

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The Who, The Animals, The Kinks, and The Yardbirds were all part of the BRITISH INVASION. This term is used to indicate the emergence of British (UK) music in the USA.

The British Invasion refers to the cultural phenomenon in which rock and pop music from the UK became popular in the USA.

The British Invasion was not only a musical movement of the mid-1960s, but also included other aspects of British culture.

The Beatles group was a pioneer rock music band that arrived in the USA and was massively popularized.

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Which of the following statements defines ovulation?

Ovulation is when an immature ovum develops into a mature ovum.
*Ovulation is the release of a mature ovum, which occurs once each month.
Ovulation is the production of an ovum that occurs each month.
Ovulation is the monthly discharge of the uterine lining.

Answers

Answer:

b. Ovulation is the release of a mature ovum, which occurs once each month.

Explanation:is correct. post protected

Ovulation is the release of a mature ovum, which occurs once each month. The correct option is B.

What is ovulation?

The process of an egg being released from the ovary is called ovulation. The egg is released and travels down the fallopian tube, where it remains for 12 to 24 hours before being fertilised.

Although ovulation is necessary for conception, more than simply an egg is required. For instance, there needs to be a clear path to the egg. A blocked fallopian tube prevents pregnancy from happening.

Around the time of ovulation, you could notice that your cervical mucus is wetter, clearer, and more slippery. After ovulation, there is a slight increase in body temperature that you might be able to measure with a thermometer.

Thus, the correct option is B.

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How much work does an elephant do while moving a 50 N circus wagon 20 m?​

Answers

Answer:

The elephant did 4000 N·m or 4000 J or 4 kJ of work

Explanation:

Cell process and transport toturial

Answers

Sorry Brainly can not provide this answer

BRAINLIEST TO CORRECT ANSWER​

Answers

I’d say the answers B

Answer:

C (pictures a and b)

Explanation:

An element contains only 1 type of atom.

since the parasympathetic division causes the heart rate to ____________ and the sympathetic division causes the heart rate to ____________ , this is an example of antagonistic innervation.

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Answer:

since the parasympathetic divison causes the heart rate to decrease and the sympathetic divison causes the heart rate to increase this is an example of antagonistic innervation

Explanation:

Define terrestrial animal.write any five characteristics of terrestrial animal

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Answer:

- living on land or on the ground.

-rather than in water and trees or in the air

-a terrestrial life

-a terrestrial habitat

- and a terrestrial species

PLEASE HELP ME IM TIMED!

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Answer:

pretty sure that is the mitochondria, the powerhouse of the cell.

Explanation:

This says it's produces energy through cellular respiration.

visceral reflex arcs differ from somatic in that ________.

Answers

Explanation:

somatic reflex occurs in skeletal muscles whereas, the visceral reflex occurs in soft tissue organs.

The difference between visceral reflex arcs and somatic reflex arcs is that visceral turns require two motor neurons.

What are visceral reflex arcs?

For instance, somatic reflexes require a direct link between the skeletal muscle and the ventral horn of the spinal cord. The central neuron of a visceral reflex sends a signal to a ganglion, which then sends another signal to the target effector.

While somatic reflexes are aware, visceral reflexes are unconscious. Compared to somatic reflexes, visceral reflexes entail a somewhat slower reaction time.

Visceral reflex arcs use two motor neurons along with glandular tissue and non-skeletal muscle to carry out a reflexive reaction. Skeletal muscles only have one motor neuron, therefore somatic reflex arcs include them.

Therefore, two motor neurons are involved in visceral arcs, which differ from somatic.

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Part C
Keep all three bags at room temperature in a sunlit area for a week. After one week, observe the three bags and write down any changes you see.

Answers

Answer:

After a week my cabbage had changed durasticaly. My cabbage has now grown and it looks pretty cool because before it looked so small. I do see a little bit of a change though. It looks like the cabbage had turned more green then before.

Explanation:

I know this is a strange little paragraph but I just thought this would help someone. So their you go. And at least try not to use the paragraph word for word, I don't want to get you in trouble.

Thank you!!!

___________1. Variety of species and abundance of species
___________2. Refers to the heterogeneity present in the world or a habitat,
ranging from macromolecules within the cells to biomes
___________3. Plant or animal that exist in small numbers
___________4. It is the loss of species
___________5. Species in danger of extinction
___________6. Number of different species present in an ecosystem
___________7. Relative abundance of individuals of each of those species
___________8. Refers to the role of that a species play in its ecosystem
___________9. They serve as biological smoke alarms
__________10. The world’s largest coral reef
__________11. Also known as the four major causes of loss of diversity
__________12. The process during which a large expanse of habitat is
transformed into a number of smaller patches of smaller
total area
__________13. Species that are introduced accidentally or intentionally
__________14. Also called overharvesting
__________15. They have broad niches

Answers

post it again and give figure pls

What is a muscle group that performs opposite functions called?

Answers

Answer:

b. Antagonistic muscles

Explanation: is correct

What characteristics do Prokaryotic and Eukaryotic cells share? (Select all that apply)

A. Have DNA
B. Ribosomes
C. Cell Membrane
D. Chloroplasts

Answers

Answer:

Both have:-

A) Have DNA

B) Ribosomes

C) Cell membrane

PLZ HELP how does the advancement of technology affect scientific models?​

Answers

Answer:

Science and technology help each other advance. Scientific knowledge is used to create new technologies. New technologies often allow scientists to explore nature in different ways and make new discoveries. Examples of technologies that have helped science advance include the telescope and microscope.

Explanation:

hope it will help.....

What Job classification has the most answer?​

Answers

‎[tex] \large \text{Answer} \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]

Job classification is what a system is called that is designed to classify all jobs within a company and put them in a standardized scale based on the overall tasks, responsibilities, pay level, and duties associated with a specific job.

Match each part of the urinary system with the correct label.

Answers

Answer:

1 Kidneys

2 Ureters

3 Bladder

4 Urethra

Explanation: are correct in edg

What is the name given to the network of smaller blood vessels providing nutrition to the walls of large blood vessels

Answers

Answer:

capillaries

Explanation:

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Add punctuationas needed.1. Mitchell said that his bike isbroken._______________________________________________2. Abe Lincoln said that everyone should be free.___________________________________________3. Martha explained that her favorite color is blue.____________________________________________4. The actor said to always remember to smile on stage._______________________________________________________5. My teacher demanded that we study our spelling words every night._______________________________________________________6. Principal Rogers told the students to arrive to school on time._______________________________________________________7. The kids yelled that recess is the best part of the day.Add quotation marks and commasto the sentences as needed1. Where is my dog? asked Brandon._______________________________________________2. Mrs. Jolly said We are having a party on Saturday. Hope you canmake it!_______________________________________________________3. First explained my grandpa we will need to clean up the garage._______________________________________________________4. If you go to the store, please buy me some oranges and apples saidNatalie._______________________________________________________5. Oh no! My pen spilled ink all over my shirt! cried David._______________________________________________________6. I cannot believe said mom that you didnt remember my birthday._______________________________________________________7. Katie said My brother just threw all of my homework into the sink._______________________________________________________8. Read the book tonight. We can talk about it tomorrow said my friend,Stacy.Rewrite the indirect quotations asdirect quotations. Add punctuationas needed.1. Cayden said that he is going toswim at the pool._______________________________________________________2. LeBron James said that his team is one of the best in the league._______________________________________________________3. Maddie explained that her dogs name is Rocky.______________________________________________4. The teacher said to open the door and let the student in.________________________________________________5. My mom said that she will not be home today when I get off the bus._______________________________________________________6. Mr. Robinson told us that the grocery store is closed on Tuesdays._______________________________________________________7. The baseball player yelled to throw the ball to first base.Rewrite the indirect quotations asdirect quotations. Add punctuationas needed.1. Drew said that basketball is hisfavorite sport._______________________________________________________2. The pop star said that her concert is going to be in New York City._______________________________________________________3. Caitlin explained that she does really well in science class._______________________________________________________4. 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