An increase in the number of brown bears in an Alaskan river ecosystem causes the ecosystem's carrying capacity for salmon to decrease. Which two terms describe the brown bear in this scenario? A.Parasite B.Biotic factor C.Limiting factor D.Primary consumer

Answers

Answer 1

Answer:

B and C, biotic factor and limiting factor

Explanation:

The carrying capacity of an ecosystem is the maximum number of organisms that an ecosystem can support based on the resources it contains.

The more the resources an ecosystem has, the more the number of organisms it can sustain and the higher the carrying capacity. On the other hand, the lower the resources an ecosystem has, the lower the number of organisms it can sustain and the lower the carrying capacity. These resources are often refers to as limiting factors.

Properly defined, limiting factors are those variables that act on a population and prevent it from increasing indefinitely. These variables can be density dependent or density independent.

Biotic factors are the living factors of the environment or an ecosystem that tend to interact with individuals living in such environment/ecosystem.

Hence, in this case, the brown bears can be viewed as a limiting factor since their increase in the river ecosystem decreased the ecosystem's carrying capacity for salmon. At the same time, they are part of the living components of the salmon's environment and can therefore be considered as a biotic factor.


Related Questions

​about one in ____ individuals diagnosed with an eating disorder is male.

Answers

Further explanation

During this time, eating disorders are always associated with women. Some of the well-known eating disorders are bulimia and anorexia nervosa. In fact, eating disorders can also be experienced by men, both children and adult men.

Eating disorders in men were first recorded in the 16th century, precisely in 1689. At that time, the doctor from England, Richard Morton, noted two cases of anorexia nervosa in one male patient. Then in 1874, Ernest Charles Lasegue and Sir William Gull made another case report about men with anorexia nervosa.

after these early cases, men with eating disorders were considered "rare" until 1972 when Peter Beaumont and colleagues conducted research on anorexia nervosa in men. But now, a lot of research on the treatment of eating disorders that do not involve male subjects.

the total proportion of men with eating disorders is not known with certainty. Older statistics say 10 percent, but given the reluctance of men with eating disorders to admit that they have the problem, most experts believe the figure is higher.

The National Association for Males with Eating Disorders estimates that 25 to 40 percent of people with eating disorders are men.

Among other eating disorders, men have relatively more representation in the categories of binge-eating disorder and Avoidant Restrictive Food Intake Disorder (ARFID). Statistics show that about 40 percent of people with binge-eating disorders are men.

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Class: high school

Subject: biology

Keywords : men, eating disorders, statistics

A television sells for ​$600. Instead of paying the total amount at the time of the​ purchase, the same television can be bought by paying ​$150 down and ​$50 a month for 14 months. How much is saved by paying the total amount at the time of the​ purchase?

Answers

In this question, the television can be bought by paying $150 down and $50 a month for 14 months. Then, the total amount of the money paid with this method would be: $150+ ($50/month) *14months = $850

The money saved by paying it on front the would be: $850- $600= $250

After a scientist finishes conducting an investigation, he or she is expected to publicly present the results. Why is it important for a scientist to communicate his or her results with other scientists?

Answers

so as to not be doing the same thing and have the same results and each claiming its there original results 

Answer:

The correct answer will be- to evaluate the results and provide instructions to researchers.

Explanation:

A scientific method is a systematic approach to answer and understand the natural phenomenon.

The last step in the scientific method is to communicate the results with other scientists which could be done through publishing the results in peer-reviewed journals and presenting the results in conferences where the results could be discussed.

The scientist needs to share the results to scientists so that the scientific community can evaluate the results, as well as the results, provides the instructions to other researchers so that they can repeat their experiment.

Thus, to evaluate the results and provide instructions to researchers is the correct answer.

Compound light microscopy is used to visualize cells and tissues. what is a major disadvantage with using this technique?

Answers

Compound light microscope is an ocular apparatus for forming enlarged images of insignificant organisms. The intensification and tenacity power is inadequate, because viewing light is used which has the minimum wavelength if about 40 nano-meters. And also the lenses of these microscopes tend to be blurry over time if not appropriately maintained. 

The passage of large molecules through the cell membrane into the cell is called

Answers

I believe that is endocytosis

The complete and persistent absence of __________ is used to determine brain death.

Answers

intelligence goes in the blank.

Patients who have experienced a severe, irreversible brain injury with a known etiology should be evaluated for brain death.

What are the main sign and symptoms of brain death?

Coma, the absence of brain stem reflexes, and apnea are the three key signs of brain death.

An assessment for brain death should be considered when a patient has suffered a serious, irreversible brain injury with a recognized etiology.

A patient who has been correctly deemed brain-dead is both legally and medically dead.

The apnea test is typically the last step in determining brain death. It is carried out after determining that a coma is irreversible, unresponsive, and that brain stem reflexes are absent.

Therefore, The completes and persistent absence of Brain stem reflexes, and apnea is used to determine brain death.

Learn more about brain death here:

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In what portion of the cell cycle does the cell double in size

Answers

The cell grows at a steady rate throughout interphase, with most dividing cells doubling in size between one mitosis and the next. In contrast, DNA is synthesized during only a portion of interphase.

The nurse is caring for a 2-year-old child who has been hospitalized after being injured in an automobile accident. during the assessment the child is quiet and watchful of all the nurse's actions. when considering the level of pain being experienced by the child what inference can be made?

Answers

That the pain level is not too high, as the child is not screaming, crying, or showing signs of broken limbs/fractures/concussions...etc....

But a correct procedure should still be done in order to make sure nothing is out of place, as there could be internal bleeding/injuries.

Hope this helps!!!

The hospice nurse is visiting the wife of a client who died 10 months ago. the wife states, "my life is meaningless since my husband died." the nurse recognizes that the client is in which stage of grief?

Answers

She is in stage 4 and that is depression. There are five stages of grief and they are:

Denial: not accepting the fact that the person has died

Anger: blaming anyone and anything for the death

Bargaining: trying to make a deal that will bring the person back to life

Depression: feeling as if they have nothing to live for

Acceptance: realizing that their life goes on, even if the other person is gone. They also try to move on with their life.



Hope this helps!!

In what ways has the atmosphere helped make Earth's environment more stable?

Answers

The atmosphere also protects living things on Earth from the sun's harmful ultraviolet radiation. A thin layer of gas called ozone high up in the atmosphere filters out these dangerous rays. The atmosphere also helps to sustain life of Earth.

How do immunoglobulin genes code for a seemingly infinite variety of antibodies?

Answers

Answer: Think of DNA-there are only 4 bases, but different combinations give infinite possibilities. And the same for amino acids and proteins. Immunoglobulins work on a similar principle. Different VDJ segments are combined for the heavy chain of an antibody. Different VJ segments are combined for the light chain. Other ways: Random nucleotides may be added or removed between the gene segments. There are also different combinations of light and heavy chains. Antibodies can be any of the 5 isotypes: IgA, IgM, IgG, IgE, IgD. I'm not going to go into detail as this answer would take too long to write. Do some literature searching on B cells, V(D)J recombination, RAG genes, class switching.


Which is true of the phospholipid bilayer of the cell membrane?
A. There is a hydrophobic side inside the cell.
B. There is a water-fearing side inside the cell.
C. There is a water-loving side outside the cell.
D. There is a hydrophobic side outside the cell.

Answers

B. There is a water-fearing side inside the cell. 


If a rock sample has a mass of 1.17 g and a volume of 0.33 cm3, what type of rock is it?

Answers

the answer is diamond

What happens to the pressure inside a cell that is placed in a hypertonic solution?

Answers

A hypertonic solution has greater solute concentration than the cytosol inside the cell. In such a case, water flows out of the cell by osmosis. This results in a decrease in turgor pressure.

Hope this helps:)

A cell that is placed inside a hypertonic solution will lose water and become flaccid. If the situation persists for long, the cell would die.

Recall that osmosis is the movement of water molecules from the region of higher water potential (lower solute concentration) to the region of lower water potential (higher solute concentration) through a semi-permeable membrane.

A hypertonic solution has more concentration and, thus, lower water potential than the cell. This means that water will move osmotically from the sap of the cell to the surrounding hypertonic solution. In this case, the cell membrane would be acting as the semi-permeable membrane

When a cell continues to lose water, the turgor pressure inside the cell will reduce and the cell will go flaccid. If the water loss continues, the cell will die off.

More on hypertonicity can be found here: https://brainly.com/question/1768400

The cactus has a specialized fleshy stem and it's leaves function only for protection. Which plant tissues most likely makes up the stem?

Answers

The stem is most likely made up of vascular tissues. The main vessels present on vascular tissue are the xylem and phloem. These two tissues work as pipes for the transport of water and nutrients inside the stem. Xylem transports water and some nutrients from the roots. The Phloem transports the soluble organic compounds that were produced during photosynthesis from the leaves, and in the case of the cactus photosynthesis happens on the actual stem, to the rest of the plant.

The correct answer is vascular tissues.  

Vascular tissues most likely form the stem. The prime vessels observed on the vascular tissue are the phloem and the xylem. These two tissues function as an element for the conduction of nutrients and water within the stem.  

The xylem transports some nutrients and water from the roots, while the phloem transports the soluble organic constituents, which were generated at the time of photosynthesis from the leaves.  


Which vitamin is synthesized by microbes in the intestine and helps to maintain bone health?

Answers

The vitamin which is synthesized by microbes in the intestines and which helps to maintain bone health is VITAMIN D.
Vitamin D plays a very critical role in the body use of calcium and that of phosphorus. Vitamin D increases the amount of calcium that is absorbed from the intestine thus helping in the formation and maintenance of bone.

Answer:

Vitamin K

Explanation:

Plato

The trachea is ringed with _____ to prevent its collapse during inspiration.

Answers

C-shaped tracheal cartilages 

1. What are the functions of the following organelles?

A. Lysosomes

B. Cell Membrane

C. Mitochondria

D. Ribosomes

E. Chloroplasts

F. Nucleus

G. Vacuole

H. Golgi apparatus

Answers

A) Lysosomes: 
The function of the lysosome is to break down old cells and get rid of virus’ and bacteria.
B) Cell Membrane:
To let molecules in and out.
C) Mitochondria:
The function of the Mitochondria is to produce energy. (It is the powerhouse of the cell)
D) Ribosomes: 
Ribosomes make proteins.
E) Chloroplasts:
The Chloroplast is where photosynthesis takes place.
F) Nucleus:
The nucleus is the control center.
G) Vacuole:
The vacuole holds the materials and waste.
H) Golgi Apparatus:
Modifying, sorting, and packing of proteins for secretion.

Hope this helps you! (:
-PsychoChicken4040

If morphine is treated with the chemical acetic anhydride, it can be converted into another powerful analgesic called ________

Answers

Heroin

Heroin has the chemical formula [tex] C_{21} H_{23}NO_{5} [/tex] and has the chemical name (IUPAC), (5α,6α)-7,8-didehydro-4,5-epoxy-17-methylmorphinan-3,6-diol diacetate. 

Heroin is also known as diamorphine. It can be produced from morphine reacting with a powerful acetic anhydride, or it can be obtained naturally from seed pods of certain opium poppy plants. Heroin is commonly used as a recreational drug as it induces euphoric effects. Medically, it can be used to relieve pain or used in an opioid replacement therapy. 

Primary succession occurs in new habitats without

Answers

Without LIFE

in case you didn`t  catch it

Which group of plants contains the tallest and oldest trees on earth?

Answers

It schools be conifers hope this helps out

Interphase, Description of what happens

Answers

is this dealing with mitosis?

The primary human source of greenhouse gases in earths atmosphere is:
a. Photosynthesis
b. The mining and burning of fossil fuels
c. the use of aerosol sprays
d. the removal of fossils

Answers

im pretty sure the answer is A.

Answer:

The answer is A

_____ limits the amount of food a person can eat at one time.

Answers

Bariatric surgery is a medical procedure designed to induce weight loss by limiting the amount of food that a person can eat at one time. The procedure involves reducing the size of the stomach, either through the use of an implanted gastric band, by physically removing a portion of the stomach. There is a related procedure called a gastric bypass, in which the small intestine is rerouted to a smaller area of the stomach.

If only 10% of energy is passed on when an organism is eaten, what happens to the other 90%

Answers

some energy is lost as heat, some is lost during cellular respiration, some is lost carrying out the daily functions of life.  

This organ system removes waste products from the blood, regulates ph and water balance:

Answers

The excretory system is the system that removes wastes and toxins from the body.

Which stress management technique involves exercising all the body's muscle groups?

Answers

The stress management technique that involve exercising all the body muscle group is PROGRESSIVE MUSCLE RELAXATION.
Progressive muscle relaxation is a non pharmacological method of deep muscle relaxation which is based on the principle that muscle tension is the body psychological response to stress.

Which of the following statements is true?
The sides of a glacier move more quickly than the middle.
Most glaciers are found in mountainous areas near the equator.
Glaciers and ice caps have the same salinity as ocean water.
Glaciers create wide, U-shaped valleys and sharp-peaked mountains.

Answers

A glacier is a large, slowly moving mass of thickened ice that can develop anywhere. It develops over a long period of time. 
Of all the statements given above, the true statement is that- Most glaciers are found in the mountainous areas near the equator.
This is because very low temperatures occur at high altitudes. Glaciers are found in the high mountains of South America and Africa.

Answer: Glaciers and ice caps have the same salinity as ocean water

Explanation:its like frezan the ocean

PLEASE HELP ASAP 
 Humans have what type of circulatory system?

A. Single Loop

B. Triple Loop

C. Double Loop

D. Quadruple Loop

Answers

well its a "closed" circulatory system, although this isn't the answer you wanted its a lil something for ya 

your answer would be c. double loop. 

let me know if this helps!
All humans have C Double Loop Circulatory Systems.

(select all that apply.) the four organic molecules common to organisms are _____.

Answers

In order to sustain life, all organisms must contain the following organic molecules; proteins, nucleic acids, carbohydrates and Lipids.
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