I Case Study #2
The amount of space in which a seedling grows determines whether or not that tree
will be able to collect enough sunlight, water, and soil nutrients that it needs to live.
Although many small plants may sprout in a forest, many will die as they are crowded
out by more mature trees which block the sun.
5. What is the limiting factor for the population in this study

The answer is observations and interpreting.

Is this a question? i'm confused

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.