George's science class looked at living cells under a microscope. the students studied an organism that had many different kinds of cells, but each cell had a cell wall and nucleus. to which kingdom did this organism belong?
a. animals
b. protists
c. monerans
d. plants

D. Plants

Explanation:

Among the options given in the question above, the only organisms that have cells with cell wall and cell nucleus are plants.

Plants are organisms with plant cells. The plant cell, like the animal cell, is eukaryotic, that is, it has a nucleus delimited by a nuclear membrane (library). In addition to this characteristic, these cells have a plasma membrane and cytoplasm, structures common to any cell.

Some organelles and structures are shared with other cell types, such as mitochondria, Golgi complex, endoplasmic reticulum, ribosomes and peroxisomes. Other structures, however, are restricted to the plant cell, that is, they are found only in that type of cell. These structures are: cell wall, plastids and vacuole of cellular juice.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation: