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3 years ago

Which pair of kingdoms include organisms which are all multicellular?

1 answer:

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The animal kingdom includes multicellular organisms. Also the cells of the species in this kingdom have a nucleus but no chloroplasts or cell wall. 
It is the largest of all of the six kingdoms and includes mammals, birds, reptiles, insects and more.
Other kingdom from which all organisms are multicellular is the plant kingdom. It includes all types of plants including mosses, flowering plants, and ferns.

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What do the subscripts mean in a molecular formula ?

horsena [70]

Answer:

A molecular formula tells us what atoms and how many of each type of atom are present in a molecule.

Explanation:

If only one atom of a specific type is present, no subscript is used.

For atoms that have two or more present, a subscript is written after the symbol for that atom.

Molecular formulas do not indicate how the atoms are arranged in the molecule.

- Hope this helps! -blazetoxic123

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3 years ago

Read 2 more answers

180m/173 Tl -> 180/173 Tl + ? Express your answer as a nuclear equation

Law Incorporation [45]

Answer: The nuclear equation is $^{180}_{173}Tl \rightarrow ^{180}_{173}Tl + ^{0}_{0}\gamma$ .

Explanation:

A nuclear reaction in which a heavy particle splits into another particle along with release of energy is called a nuclear fission reaction.

For example, $^{180}_{173}Tl \rightarrow ^{180}_{173}Tl + ^{0}_{0}\gamma$

Here, energy is radiated in the form of gamma radiation.

Thus, we can conclude that the nuclear equation is $^{180}_{173}Tl \rightarrow ^{180}_{173}Tl + ^{0}_{0}\gamma$ .

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3 years ago

The switch is used to ___________ or __________ an electrical circuit. When the switch is on, the circuit is __________ , and wh

Pani-rosa [81]

Answer:

The switch is used to disconnect or connect an electrical circuit. When the switch is on, the circuit is complete, and when the switch is off, the circuit is open. Electrical current exists in the circuit when it is closed, but when it is open, there is no electrical current in the circuit. The switch determines whether the circuit is open and closed.

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3 years ago

11. The oxyfuel flame was used for fusion welding as early as the first half of the

Firlakuza [10]

The Oxyfuel gas or flame refers to a group of welding processes that use the flame produced by the combination of a fuel gas and oxygen as the source of heat.

Explanation:

Oxy-fuel welding is a process that utilizes fuel gases and oxygen to weld metals. Oxyfuel gas or flame refers to a group of welding processes that utilize the flame delivered by the blending of fuel gas and oxygen as the source of heat.

This flame is utilized for cutting and welding of two metallic pieces. This is done due to the heat produced by cutting and welding of two metallic pieces together by heating to the melting point.

An oxyhydrogen flame is utilized for cutting and welding of two metallic pieces due to the heat produced by the flame, i.e, 2800 ° C. At this temperature, the metal gets softened effectively and thus it can easily separate or welded together.

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3 years ago

4 Which pair of ions is isoelectronic?

Softa [21]

Answer:

B. Na+ and O2-

Explanation:

Na+ plus has 10 electrons and O2- also has 10 electrons

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3 years ago