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3 years ago

Why are ecological pyramids shaped as pyramids?

2 answers:

8 0

<span>The ecological pyramids are shaped as pyramids themselves because the amount of energy decreases almost by ten percent, as we move from one trophic level to another. At the base, producers are placed. They synthesize their own food and are present in very large number. The organisms which consume them, are less in population, as compared to producers and have less energy as well, and this, is true for each next trophic level, and hece, the pyramid.</span>

Oduvanchick [21]3 years ago

3 0

<span>Answer should be A. It is an introduction of the trophic levels in a biological system. Vitality from the sun is exchanged through the biological community by going through different trophic levels. About 10% of the vitality is exchanged starting with one trophic level then onto the next, along these lines keeping an expansive number of trophic levels.</span>

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Jason adds the antibiotic penicillin to a bacterial culture. The bacteria develop genetic modifications in their genome, which g

Aleks [24]

The correct answer is A.
The use of antibacterial drugs can cause modifications in the genetic material of the concerned bacteria. If the genetic material of the bacteria are modify, that means they have undergone mutation. Because the base sequence of the normal and that of the mutated gene is different, antibiotic will not be able to recognize the bacteria again and thus will not be able to attack it.

3 0

3 years ago

What errors exist in the table below?

Vera_Pavlovna [14]

Answer:

A. spiral galaxies are not pinwheel-shaped

Explanation:

There are three types of galaxies that include spiral galaxy, elliptical galaxy and irregular galaxy.

Elliptical galaxies are round shaped as well as elongated. Elliptical galaxies have both old and new stars but mostly it contains old stars.

Spiral galaxies are pinwheel-shaped due to the regular spinning motion of dust, stars and gas around the galactic center, at speeds of hundreds of kilometers per second which allows the matter to take a pinwheel-shape. Spiral galaxies are made up of lot of gas and dust and forms many new stars which allows the spiral galaxy to shine bright.

Irregular galaxies do not have any definite shape because of the gravitational influence of close galaxies. They also have many new stars.

Hence, the error is foudn in first sentence, where it says that spiral galaxies are not pinwheel shaped. so teh correct option is A.

7 0

3 years ago

What landforms are in the piney woods, gulf coastal plains, and blackland parries???? PLEASE HELP ME!!!:)

tatuchka [14]

It has wet marshes and beaches, and can also have plains and forests.

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3 years ago

Which of the following statements best explains the hypothesis that the development of sexual reproduction has resulted in accel

RideAnS [48]

Answer:

Explanation:

7 0

2 years ago

Cattle - brucellosis pretend you are an epidemiologist, and recommend a comprehensive disease-control program for keeping the he

Oksanka [162]

Worldwide, brucellosis is a disease that must be reported in the majority of nations.

The illness manifests as flu-like symptoms such as fever, malaise, weakness, and weight loss.

Transmission from person to person is uncommon

Brucella species, which primarily infect cattle, swine, goats, sheep, and dogs, are responsible for the bacterial disease known as brucellosis.

A number of Brucella species, which primarily affect cattle, swine, goats, sheep, and dogs, are responsible for the bacterial disease brucellosis. Humans typically contract the illness through close contact with infected animals, consumption of tainted animal products, or inhalation of airborne agents. Consuming unpasteurized milk or cheese from infected goats or sheep is the primary cause of the majority of cases.

>Steer clear of unpasteurized dairy products. Few brucellosis cases have recently been linked to raw dairy products from domestic herds in the United States.

>Cook meat completely.

>Put on gloves.

>In high-risk workplaces, practice safety precautions.

>Vaccinate household pets

>Doxycycline and rifampin are typically administered together for 6–8 weeks.

>To stop the disease from coming back, you must take the antibiotics for a number of weeks.

> Relapse rates after treatment range from 5 to 15%, and they typically happen within the first six months.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2931434/

To learn more click on the link below

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6 0

1 year ago