Where does gas exchange occur in terrestrial arthropods?
A. through gills
B. through their skin
C. through tracheae
D. through lungs
Answer: C
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At equilibrium, the concentrations of the reactants equals that of the products
Indicate whether the statement is true or false.
Which of the following types of muscles are striated?
A. Skeletal and smooth B. Skeletal and cardiac C. Cardiac only D. Skeletal, smooth, and cardiac E. Triceps and biceps only
Leaves
a. intercept sunlight. b. of some species form toxins. c. actively orient relative to the sun to favor optimal position. d. come in simple and compound forms. e. fit all of these descriptions.
Which of the following choices lists the organs of the bird digestive system in the correct order, from first to last contact with food material?
A) esophagus, stomach, gizzard, crop, intestine, anus B) esophagus, gizzard, crop, stomach, intestine, anus C) esophagus, crop, stomach, gizzard, intestine, anus D) esophagus, crop, gizzard, stomach, intestine, anus