The correct answer is option A, that is, blood.
Cell theory in biology refers to the universally acknowledged scientific theory that living species are constructed of cells, that is, they are the basic fundamental and structural unit of all species, and that all the cells arises from the pre-existing cells. The theory is credited to Schwann and Schleiden. The three postulates of the theory are:
1. All living species comprises of one or more cells.
2. Cell originate from the pre-existing cells.
3. The cells is the fundamental unit of organization and composition in organisms.
Answer:
D: It would fizz in acid.
Explanation:
Marble is a limestone & will have an acid reaction that is similar to the limestone from which it was formed.
It’s an organ that is part of the circulatory system
The correct answer is B. Pinna because auris externa is the external portion of the ear, which is called auricle ( also known as pinna ).
* Hopefully this helps:) Mark me the brainliest:)!!
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Well, A humans brain is bigger than a Sheeps brain, And a human has more Ridges and Contours also, Hope this helps
