Answer:
Many small organisms can be preserved within these layers of sediment through time. The changing abundances of these fossils through time can tell us whether a change in the environment or climate was gradual or abrupt. Studying fossil pollen and other fossils helps scientists to learn more about climate change.
C is most likely your answer (my bad if I am wrong)
Phosphorus is an essential element in nucleic acids. Nucleic acids, like DNA and RNA are responsible for coding for proteins that are essential for regulating cellular functions
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
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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