Answer:
The correct answer is: d. Carassius is a group of different organisms with similar structures, while auratus is a smaller group of members that can only breed with another auratus.
Explanation:
Carassius signifies the name of genus. In binomial terminology it is the generic name shared by the collection of nearby families. In this case, Carassius is a genus in the family of ray-finned fishes. Auratus signifies the types of the fish and it is detailed exclusive epithet within the type. Carassius is a type in the ray-finned fish family Cyprinidae. Maximum types in this genus are usually identified as crucian carps, however this tenure often precisely denotes to C. carassius. The most well known is the goldfish (C. auratus).
Well they can begin as cosmic rays colliding with water molecules to create clouds. Hope this helps :)
-4
Explanation:
If a radioactive isotope undergoes alpha decay, it's mass number will change by -4.
The mass number of a nuclei is the sum of its number of protons and neutrons.
An alpha particle is similar of a helium atom:
⁴₂He
The atom above is made up of:
mass number = 4
Atomic number = 2
Number of protons = 2
Number of neutrons = 2
Number of electrons = 2
If a substance is undergoing radioactive decay, the mass number of the product will decrease by 4 and the atomic number will decrease by 2.
In nuclear equations, mass and atomic numbers are usually conserved.
learn more:
Transmutation brainly.com/question/3433940
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B. Convection Currents
If you want it explained, read on.
Lets go through the answers here. A. Conductive enegry cant be correct since conduction is when heat is transfered through touching objects. B. Convection currents are when heat is trasfered through a current, so we will come back to this one. C, well, its not radioective at all. D radient heat is when heat trasfers from the sun. Now, back to b. The question describes a circular current between the poles and the Equator. Heat tranfer through convection is through currents.
Answer: ochers
Explanation: they mixed ocher with iron
