Q. Fill in the following blanks with suitable words:
(a) Cells were first observed in cork by ___ in 1665.
(b) What is brick to a house is ___ to an organism.
(c) The cytoplasm and nucleus make up the ___.
(d) The shape and size of a cell is related to its ___.
(e) The bacteria cells are ___ to ___ micrometre in length.
(f) The smallest unit of life is a ___.
(g) Tissues make up ___.
(h) Organ systems make up an ___.
(i) Cells make up ___.
(j) Organs make up ___.