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kompoz [17]
3 years ago
6

Although animals share many common characteristics, there is also a great amount of diversity found in animals. Which animals ar

e ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water? A) Fish B) Reptiles C) Mammals D) Amphibians
Biology
2 answers:
Stells [14]3 years ago
4 0
The answer you are looking for is A) Fish

Fishes are examples of Vertebrates. They are cold-blooded; obtain dissolved oxygen in water through gills; most of them lay eggs; have scales; have fins; live in water. 
olga55 [171]3 years ago
3 0

the answer is a. i did it on a quiz and got it right

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Dmitrij [34]
Fruits is what I would fill in
7 0
3 years ago
How can you increase kinetic energy?|
Darya [45]

                                        <u>Answer and Explanation</u>

<u>__________________________________________________________</u>

According to <em>Sciencing,</em>

<h2><em>Translational Kinetic Energy </em></h2>

<em>Translational kinetic energy is the energy of motion in a straight direction -- think of it as the energy of a car driving down the street. Kinetic energy is a function of the object's mass and its velocity. More specifically, translational kinetic energy can be described as one-half times the mass times the square of the object's velocity: 1/2mv^2. </em>

<em> __________________________________________________________</em>

<h2><em>Increasing Translational Kinetic Energy </em></h2>

<em>Because the translational kinetic energy formula consists of only two variables, mass, and velocity, increasing one of those properties is the only way to increase an object's translational kinetic energy. Increases to mass and velocity, however, do not have the same impact. Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy. Doubling the mass of an object will only double its kinetic energy, but doubling the velocity of the object will quadruple its velocity. </em>

<em> __________________________________________________________</em>

<h2><em>Rotational Kinetic Energy </em></h2>

<em>Rotational kinetic energy describes the energy of an object rotating around a center of gravity -- for example, a rider on a Ferris wheel. In this case, kinetic energy is still a function of mass and velocity, but the terms used are slightly different to account for the movement in a circular direction. Rotational kinetic energy applies the same equation, except the mass term is replaced by a variable known as the "moment of inertia," (I), while the velocity term is replaced by the object's "angular velocity," (w) -- 1/2Iw^2. </em>

<em> __________________________________________________________</em>

<h2><em>Increasing Rotational Kinetic Energy </em></h2>

<em>As with translational kinetic energy, increasing energy is a matter of increasing mass and velocity. The "moment of inertia" is equal to an object's mass times the square of its distance from the center of rotation, so it can be increased by either increasing the object's mass or moving it farther from the center of rotation -- simply build a bigger Ferris wheel. Alternatively, you can increase the kinetic energy by increasing the angular velocity, which means simply increasing the speed at which the object rotates around the center of rotation.</em>

<em>__________________________________________________________</em>

<em>Big thanks to Sciencing, that's where I got all the answers! :3</em>

<em>__________________________________________________________</em>

<em>Hope this helps! <3</em>

<em>__________________________________________________________</em>

4 0
3 years ago
1.0X10 to the negative 7th power mg
Over [174]

Answer:

1.0 × 10-7 milligrams

Explanation:

1.0 × 10-7 milligrams

6 0
3 years ago
The action potential spreads through an axon by Group of answer choices depolarizing adjacent membrane to threshold, triggering
Step2247 [10]

The action potential spreads through an axon by depolarizing adjacent membrane to threshold.

  • K+ departs the cell after Na+, which enters the cell first. Ions can move freely across the axon membrane because of the difference during the action potential.
  • Because sodium contains a positive charge, the neuron becomes more positive and depolarized. Potassium channels take longer to open. As soon as the cell does open, K+ rushes out, reversing the depolarization known as repolarization.
  • Sodium channels close during the peak of the action potential when potassium leaves the cell. When potassium ions are effluxed, the membrane potential is lowered or the cell becomes hyperpolarized.
  • Outside of the cell, the concentration of Na+ is greater than inside the cell. while the concentration of K+ is  is greater inside the cell than outside.

learn more about action potential here: brainly.com/question/6705448

#SPJ4

4 0
1 year ago
1 gallon = 3.8 liters    1 mile = 1.6 kilometers   1 inch = 2.54 cm 1 cm = 10 mm
lorasvet [3.4K]

Answer:

8.327906

Explanation:

1 gallon [US, liquid] to litres = 3.78541 litres

5 gallon [US, liquid] to litres = 18.92706 litres

10 gallon [US, liquid] to litres = 37.85412 litres

15 gallon [US, liquid] to litres = 56.78118 litres

20 gallon [US, liquid] to litres = 75.70824 litres

25 gallon [US, liquid] to litres = 94.6353 litres

30 gallon [US, liquid] to litres = 113.56235 litres

40 gallon [US, liquid] to litres = 151.41647 litres

50 gallon [US, liquid] to litres = 189.27059 litres

we could tell that 2.2 gallons are in between 8.327906 litres

7 0
3 years ago
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