Skeletal muscle is made up of voluntary muscles but can contract involuntarily<span> by reflexes. </span>
Answer:
2 elements chemically joined together. An emample is Ironoxie
Explanation:
Answer:
The Independent variable would be the pills that are being taken.
Explanation:
The Independent variable is the variable that you control because the Dependent variables depend on what the Independent variable is.
Answer: Ions are defined as atoms that have lost or gained an electron and have a charge.
Explanation: Ions are charged atoms. Ions can be negative or positive. When an atom looses one or more electrons, it becomes positively charged and a positively charged atom is called a cation. When an atom gains one or more electrons it becomes negatively charged and a negatively charged atom is called an anion.
Answer:
Some fish or amphibians secrete <u>mucus that retains water or oxygen particles and then it passes into their body.
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Explanation:
Many amphibians and fish have thin and in many cases slippery skin.
This is because some species secrete slimy substances through the skin, keeping it wet.
Since some fish or amphibians cannot ingest water directly, they need a way to stay hydrated.
This viscosity or mucus makes possible for the animal to come into contact with water and oxygen, and then ingest them.
In addition to this in some amphibians, mucus disperses secretions from other glands, the poisonous glands, which serve as a shield for predators.
