Answer:
C. serous cells and mucous cells
Explanation:
Salivary glands consist of serious acini and/or mucous acini. The serous acini represent the serous fluid secreting part of the salivary glands and is composed of serous cells. The mucous acini are made of mucous secreting cells.
The parotid salivary glands consist of serous cells only while the sublingual glands and submandibular cells have both serous and mucous cells.
A controlled variable is not changed throughout an experiment. It is there so that the other variables being tested on can be better understood.
Owl, Uroplatus Geko, and Spiders
The reactants required are
Cations and anions
Answer:
In a scientific experiment, an independent variable is the one which can be changed or manipulated in an experiment. A dependent variable is one which depends upon the independent variable in the experiment. In a experiment if independent variable changes or manipulated, the effect is observed and measured on the dependent variable.
The food being filled to the top for the first day till consumed up to 10 days can be considered as the independent variable, to determine the number of birds come to feed in different time periods (6.am and 6pm) is the dependent variable.