Organisms can only feed at a single trophic level.

The amount of ppm present of phosphate in the tap water experiment was

Even low amounts of Ammonia will harm aquatic animals.

Based on the experiment results, water has a low acidic pH

Which part of the male reproductive system is in charge of producing sperm.

Only males have organ #7 urinary tract.jpg

Your _______________________is the total number of calories required to maintain only vital bodily functions.

Animals with both male and female reproductive systems are

Ingested material enters the mouth and passes through a hollow, tubular cavity. Cells within the cavity secrete digestive enzymes that break down the food from mouth to anus. Which cavity is being described?

Without villi, a person would not be able to