The answer is A- toxic chemicals in the air
Robert Hooke , Matthias Schneider , Theodore Schwinn, Rudolf Virchow, Leeuwenhoek
Answer:
(c) unicellular eukaryotic
Explanation:
Firstly, all prokaryotic cells are unicellular, they cannot be multicellular, so be cannot be correct.
Both Chlamydomonas and Paramoecium are single-celled organisms, so must be unicellular prokaryotic (a) or unicellular eukaryotic (c).
Chlamydomonas and Paramoecium are eukaryotic. They have membrane-bound organelles like a nucleus and food vacuoles. They are examples of protists.
Blood-vascular system and Lymphatic system
The answer is True.
When they differentiate, they become a specific cells with a specific function ( eg : brain cells, blood cells, liver cells, etc)
They each have a specific function which is why they're called specialized cells.
Hope this help