The ventilation of insect tracheal tubes is dependent upon the presence of:

a. pores.
b. alveoli.
c. gills.
d. spiracles.
e. opercula.


d

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

What is the name given to determining evolutionary relationships by looking at one characteristic at a time?

What will be an ideal response?

Biology & Microbiology

Broadly defined, ________ is descent with modification from a common ancestor

Fill in the blank(s) with correct word

Biology & Microbiology