<span>Adaptive evolution is always changing because the environment is changing continuously.
Hence,
The right answer would be :
</span><span>Adaptive evolution is a fluctuating change in a trait.</span>
The reactivity of an atom is due to the number and arrangement of Electrons (b) in the outer energy level.
Electrons "bond" they're the ones that react to create other elements.
Examples: Salt (NaCl) Carbon Dioxide (CO2)
And so on, and so forth. Thus, your answer....B.
Unicellular-the body of the cell is singular.
division of labor is at the organelle level.
the single cell carries out of it's life processes
Multicellular-the body of the organism is made up of many cells
division of labor is at cellular, tissue, organ, and organ system level
different cells are specialized to perform different functions in the organism
The term "dead air spaces" refers to air passages like your trachea (windpipe) that may contain air your body can't use.
<h3>What does trachea mean?</h3>
Your larynx, or voice box, and your lungs are connected by a long, U-shaped tube called your trachea. The windpipe is another name for the trachea. It is an essential component of your respiratory system. Air enters your lungs through your larynx when you breathe in.
<h3>What are the trachea's four purposes?</h3>
- Tracheal Activity
- The airway from the mouth or nose to the lungs should be made strong and secure.
- Prevent foreign things from entering the respiratory system.
- control the air entering the lungs' temperature and humidity levels.
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Condensation because condensation is gas to liquid