What is structure H?

Which structure is located within the buccal cavity of a frog and aids in capturing prey?

Which of the following best describes the concept of competitive exclusion, as demonstrated by the Paramecium experiment?

The nares contain what type of sensory receptors? 

In polyp form of cnidarians, the mouth is _________________. 

What is the carrying capacity for the mixed culture of P. aurelia.

If P. aurelia is grown in isolation with a constant food supply, its population growth will likely follow a(n):

Which of the following reflects the correct order of appendages/structure from most anterior to most posterior? 

In male ascaris nematodes, the large reproductive tube that opens to the genital pore is called the ________________, which connects to a long, convoluted ____________ that ends in a single testis at its narrow tip. 

When specialized type of cell present on cnidarian tentacles and functions to sting and capture prey?