The ventilation of insect tracheal tubes is dependent upon the presence of:
a. pores.
b. alveoli.
c. gills.
d. spiracles.
e. opercula.
d
You might also like to view...
The heating and cooling system in your house or apartment can be thought of as a homeostatic system. When you turn the thermostat dial to 70 degrees Fahrenheit, this can be thought of as the _____ of the system.
A. set point B. sensor C. effector D. homeostat E. regulatory response
Ribosomes that do not anchor to the surface of the rough endoplasmic reticulum during translation most probably
A) are synthesizing cytoplasmic proteins. B) have a defect in ribosomal proteins that allow attachment to the ER. C) have a signal/trafficking error. D) do not make the appropriate anchor protein. E) all of the above
What is the name given to determining evolutionary relationships by looking at one characteristic at a time?
What will be an ideal response?
Broadly defined, ________ is descent with modification from a common ancestor
Fill in the blank(s) with correct word