<span>the organelles are enclosed in membranes</span>
Answer:
forms of external and internal animal
Answer:
Toxic waste
Explanation:
Toxic waste are chemical substances which are poisonous, can cause cancer, can cause birth defects and may lead death or severe ailment. Toxic waste can lead to poisoning occurs when ingested, inhaled, or absorbed by the skin.
Examples of toxic wastes are Lead-Acid Battery, Mercury (mercury pollution), Pesticides Pollution, Arsenic in Ground Water etc.
Mercury vapors can cause neurological and behavioral disorders like tremors, emotional instability, insomnia, memory loss and so on.
Answer: by studying the Fossil record we can tell how long life has existed on earth,and how different plants and animals are related to each other.often we can work out how and where they lived, and use this information to find out about ancient environments fossils can tell us about a lot about the past.
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