Land, Water and Air are the three sub-groups of animals in Aristotle's classification system. He also classified on basis of red blood cells and without red blood cells.
<h3><u>
Explanation:</u></h3>
Aristotle is very popular in ancient Greece and he is very popular in the field of biology and mathematics. He divided the living organisms into two classes called the Plants and the Animals. He divided the animals into two classes – one which contains red blood cells and the other which didn’t contain any red blood cells.
He also noticed that most of the organisms which contained red blood cells are vertebrates i.e they contained a body vertebral column in their back. So they were called as vertebrates and the others were called as invertebrates.
Answer:
i have put an image for a diagram of the heart in the answers becuase you did not provide a diagram so i hope this helps
Explanation:
I believe it would be c not exactly sure tho
Normally, people produce about 100 billion white blood cells a day. ... However, an increase in the number of white blood cells is also caused by cancers of the bone marrow (such as leukemia) or by the release of immature or abnormal white blood cells from the bone marrow into the blood.
Overview of White Blood Cell Disorders - The Merck Manuals
https://www.merckmanuals.com/.../blood-disorders/white-blood-cell-disorders/overview-...
Answer:
b. the paper used to print the work sheet
Explanation: