Answer:
d
Explanation:
Fishes are aquatic vertebrates having scales, pharyngeal gill slits and paired fins. ... Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change. fishes have scales that covers the skin of fishes. Thus, the correct answer is option D.
Answer:
Mechanical energy is one of the only types of energy that is easy to see. If something is moving, it is using mechanical energy! Take a look at these sources of mechanical energy that you're likely to find in the home.
-
Turning a doorknob
-Breathing in and out
-
Hammering a nail
-Riding a bicycle
-Sharpening a pencil
-Using kitchen appliances
-Listening to music
-Typing on a keyboard
-Driving a car
-Exercising
Explanation:
<em>Mechanical- </em>Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both.
The thermosphere keeps the earth from getting to hot frame the sun and it's the last layer so
the thermosphere
Answer:
As organisms adapt to changing conditions, they evolve in a way to fit their surrounding environment. According to Darwin's <em>survival of the fittest</em> concept, organisms that can adapt to fluctuating conditions are more fitter and hence selected by nature.
Here fitter means reproductive superiority.
Answer:
wear a mask and buy clorox wipes or bleach spray
Explanation:
