Answer:
EKG is a test that measures the electrical activity of the heartbeat. With each beat, an electrical impulse (or “wave”) travels through the heart. This wave causes the muscle to squeeze and pump blood from the heart.
<u>Answer:</u>
<em>Decrease in burning of fossil fuels will affect carbon cycle the most.
</em>
<u>Explanation:</u>
Carbon compounds circulate within the biosphere as part of carbon cycle. In terrestrial ecosystems Plants acquire carbon dioxide through photosynthesis and in aquatic ecosystems plankton absorb carbon dioxide.
Dead plants bodies deposited underground for a large number of years get converted to fossil fuels and the burning of these fossil fuels releases carbon dioxide into the atmosphere.
Carbon dioxide is also released into the atmosphere through processes like respiration and decomposition of dead organic matter. If burning of fossil fuels is decreased it will be the carbon cycle which will be affected the most.
Answer:
Crossing over
Explanation:
This exchange of genetic material is called chromosomal crossover, or crossing over.
Metamorphosis through which the insect develops by four distinct stages: egg, larva, pupa, adult. A type of metamorphosis in which an organism's transformation is so dramatic that it is difficult to recognize the relationship between the larva and adult form.
Option 4) Metamorphosis
