Matthias Schleiden observed that all plants were made of cells; Theodor Schwann observed that all animals were also made of cells; and Rudolf Virchow observed that cells only come from other cells. ... Cells are the basic units of structure and function in living things. Living cells come only from other living cells.
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. ... The generally accepted portions of the modern Cell Theory are as follows: The cell is the fundamental unit of structure and function in living things.
Answer: For the scientist to have alternative hypothesis considered, it is imperative he takes certain steps, this steps will ascertain the scientific claims already made about the evolution of species.
Therefore,the scientist will simply test the alternative hypotheses inorder to know that they are incorrect.
This testing of hypotheses to ascertain their incorrectness is very useful in the study of fossils.
Chemical change I believe
<span>a. Color of leaves</span>
If the question goes like this: Which best describes plant classification? <span>
A. Nonvascular plants are grouped into seedless and seeded plants. </span><span>
B. Seedless plants are grouped into gymnosperms and angiosperms.</span> <span>
C. Gymnosperms are grouped into monocots and dicots. </span><span>
D. Angiosperms are grouped into monocots and dicots.</span><span> </span><span>
The best answer will be letter D. Angiosperms are grouped into monocots and dicots.</span><span> Botanists grouped or classified together according to its characteristics. </span>