Answer:
States that some traits are dominant and mask recessive traits.
Platyhelminthes have the following important characteristics: They are triploblastic, acoelomate, and bilaterally symmetrical. They may be free-living or parasites. The body has a soft covering with or without cilia.
The process of fusion is when two atoms combine to form a lager atom, releasing energy.
Fusion is defined as the mixing of two lighter nuclei to form one bigger and heavy nuclei. For example, two atoms of hydrogen combine together to form the helium atom. It is also termed as transmutation, as one form of element is transformed into another.
An atom is the smallest unit of any substance. It cannot be further broken down into simpler units. The composition of an atom includes various subatomic particles. These are: a nucleus surrounded by various electrons. Nucleus itself is made up of two subatomic particles: protons and neutrons.
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Answer: secondary b
Explanation: its when there is soil to start with
The rocky upper layer of the solid earth is called the "lithosphere". This rocky part includes the brittle upper portion of the mantle and also of the crust. It is bounded by the atmosphere above and of the asthenosphere which is another part of the upper portion of the mantle.