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kotegsom [21]
2 years ago
12

What is a pacu fish's predators/dangers

Biology
1 answer:
Zepler [3.9K]2 years ago
7 0

he Piranha is one of the most efficient predators on the face of the earth. Granted it is not a large animal, with most only reaching about 5 1/2 to 10 inches (14 – 26 cm), but it is known world wide for its ferocious nature. They have razor sharp teeth and are opportunistic carnivores.

A frenzied attack by a group of Piranha will set the water churning. They will attack and eat all sorts of aquatic animals, insects, lizards and amphibians. They will also devour rodents, carrion (dead meat), and sickly or weakened land animals that venture into the water.

The teeth of the Piranha are triangular in shape with an exact fit in their jaw, comparable to a bear-trap. They are designed to puncture and slice the flesh from their prey. They can strip their prey to the bone in a matter of minutes.

These fish are a great source of fascination. Their natural behaviors have become fodder for the scripts of moviemakers looking for a sensational twist to excite and entice an audience. What could be more intriguing than creating a 'fear factor' from the behaviors of these provocative fish found in the "wild". Yet just like the Great White Shark and the Anaconda constrictor, also popular subjects of thriller movies, the Piranha’s behaviors are over-fantasized.

The Piranha does engage in a feeding frenzy that will "make the water boil" if only because a hungry school of fish are trying to reach the same limited food source. All that activity is bound to create water turbulence. A Piranha school generally only consists of about 20 or so fish, but in a feeding frenzy it can reach up to several hundred..

Piranhas are not always that deadly. Many species live solitary lives once they reach maturity and only four or five species pose any significant danger. Piranhas rarely attack people. Many experts believe they are actually timid fish, and shoal for protection. Even the most aggressive are thought to be not really dangerous until they are trapped and confined, and then attack in self defense. As a pet they are fascinating and beautiful fish, yet you can't hold or pet them. They are not affectionate and owners must be extremely careful, especially when handling them. They do have sharp teeth and an aggressive/defensive nature. Most Piranha bites are sustained when the fish are being handled, though that's not to say a hungry fish is never dangerous.

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A sample of rock is found to contain 200 grams of a parent isotope.how many grams of the parent isotope will remain after one ha
emmasim [6.3K]

Answer: 100 grams of the parent isotope will remain after one half life.

Explanation:

Mass of the isotope present at initial stage = N_o=200 g

The mass of the parent isotope left after the time ,t=N

Time taken by the samle ,t = t_{\frac{1}{2}}

The half life of the sample :t_{\frac{1}{2}}

N=N_o\times e^{-\lambda t}

\lambda =\frac{0.693}{t_{\frac{1}{2}}}

\ln[N]=ln[N^o]-\frac{0.693}{t_{\frac{1}{2}}}\times t_{\frac{1}{2}}

2=\frac{[N_o]}{[N]}

[N]=\frac{N_o}{2}=\frac{200 g}{2}=100 g

100 grams of the parent isotope will remain after one half life.

5 0
3 years ago
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Some will require energy and a transporter protein in the membrane. Amino acids use this form of transport, called ____________
bearhunter [10]

Answer:

Active transport

Explanation:

The process of transport of substances that uses energy and carrier proteins of the membrane is called active transport. Amino acids can not cross the hydrophobic core of the membrane and therefore, are transported through carrier proteins. The carrier proteins transport the amino acids using energy and the process is called active transport.

3 0
2 years ago
Why are ribonucleoside triphosphates the monomers required for rna synthesis rather than ribonucleoside monophosphates?
torisob [31]

Answer:

The phosphates provide energy for the bond between each nucleotide.

Explanation:

When each nucleotide is being bound, the two extra phosphates provide the energy needed for it to form the bind between each nucleotide that's being added to the RNA. Without this energy, the RNA wouldn't be able to form due to the lack of enough energy.

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A person who sprints for 45 seconds obtains most of his or her energy from _______. multiple choice
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A person who sprints for 45 seconds will obtain most of his or her energy from muscle glycogen.

<h3>Energy metabolism during sprints</h3>

During sprinting or highly intense exercise activities, blood glucose is rapidly consumed. Rapid consumption of blood glucose may breach the blood glucose set point.

In order to maintain blood glucose homeostasis, glucose stored as glycogen in the muscles is converted back to glucose. The glucose is then utilized to produce ATP for the sprint or exercise.

Thus, a person who sprints for 45 seconds will have to obtain most of their energy from the glycogen stored in the muscles.

More on glucose metabolism can be found here: brainly.com/question/4707439

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A) muscle triglycerides.

B) plasma free fatty acids.

C) blood glucose.

D) muscle glycogen.

3 0
1 year ago
ICY WATER SETUP:
Rzqust [24]

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The answer is 20 degrees then the temperature will start going to other organs

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