Answer:
1. Animals are multicellular.
2. Animals are heterotrophic, obtaining their energy by consuming energy-releasing food substances.
3. Animals typically reproduce sexually.
4. Animals are made up of cells that do not have cell walls.
5. Animals are capable of motion in some stage of their lives.
6. Animals are able to respond quickly to external stimuli as a result of nerve cells, muscle or contractile tissue, or both.
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The of melting point of gold is 1,948 degrees F and 1,064 degrees C
<span>The boiling point is 4,892 degrees F and 2,700 degrees C
Yet the numbers neutrons are 12. The number of protons is 36 and electrons is the same as protons
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Answer:
it should be a base
Explanation:
this is because solutions such as bleach are usually slippery on the hands, and mostly bases are in cleaning solutions
Answer:
b, their strong winds uproot many of the important plants
Explanation:
Helium - 4 isotope has 2 protons and 2 neutrons.
Its atomic number is 2 (the number of protons). Atomic number is the number of protons in the atom of an element and it identifies the element. All the isotopes of an element have the same atomic number (same number of protons). So, all the isotopes of hellium have 2 protons.
The number 4 that identifies the helium - 4 isotope is the mass number, i.e. the number of protons plus the number of neutron. So, helium-4 isotope has 2 protons and 2 neutrons. While, other isotopes of helium have 2 protons but different number of neutrons.
The atomic number enable us to deduce the number of electrons in an atom because the atoms are neutral, which implies that the positive and negative charge are equal. Given that the magnitude of the charge of electons and protons are equal but the sign is opposed (protons are positve and electrons are negative) the number of electrons in the atom equals the number of protonts. That is why the atomic number is also the number of electrons of the atom.
