What kind of skeletons do arthropods have?
a. exoskeletons
b. endoskeletons
c. hydrostatic skeletons
d. segmental skeletons
e. none of these
A
You might also like to view...
What is the general trend in diversity in vascular plants for the past 145 million years?
What will be an ideal response?
Describe the dermal tissue system
What will be an ideal response?
When a goose spots an egg outside of its nest, the goose gets out of the nest and rolls the egg back. Once started, a goose continues the egg-retrieval movement all the way back to the nest, even if the egg is taken away during the process. This is called:
a) step-wise reproductive collaboration. b) repeated pattern fixation. c) a fixed action pattern. d) prepared learning. e) supernormal stimulus.
The X and Y chromosomes which determine the gender of an individual are known as the ________ chromosomes.
Fill in the blank(s) with the appropriate word(s).