Domains are the highest ranking of organisms in taxonomy. They are notably Bacteria, Eukarya, and Archaea
<u>Answer:</u>
<u>D. Type of bee carrying the pollen</u>
Explanation:
Remember, Lilies are aquatic plants, so in order to rule out Environmental Variation, that is, differences in environment, we are to make constant all the environmental factors which include the options;
- Temperature
- Amount of sunlight
- Amount of water
However, the none environmental factor which is the type of bee carrying the pollen is exempted.
The lymph vessel flows from the tissue to the lymph nodes, flow to the largest lymphatic vessel in the thorax called thoracic duct, then drain to the subclavian vein.
The lymphatic vessel is a thin tubular organ made of the endothelial cell. It has a valve like the vein to prevent backflow of lymph. Lymphatic vessel delivers the lymph through the body and has a role in the immune system.