Which of the following is not an accurate comparison of human and insect respiratory
systems?
a. The insect tracheal system provides a large surface, while the lungs have only a small
surface-to-volume ratio.
b. Oxygen is transported via the circulatory system in humans, but the tracheal system in
insects is separate from body fluids.
c. Only humans can increase airflow using ventilation.
d. Both gas exchange systems consist of a system of tubules to transport gases.
A
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Gay matter is located in the ____ of the cerebrum
a. outer region b. inner region c. ventricle d. right, but not left, hemisphere e. left, but not right, hemisphere
Experimentation
A. provides a means to gather objective data. B. is designed to support an hypothesis. C. provides a means to gather subjective data. D. is designed to refute an hypothesis. E. is the first step in the scientific method.
Which phylum of vascular, seed-bearing plants comprises about 80% of all living gymnosperms?
a. Anthophyta b. Coniferophyta c. Cycadophyta d. Ginkgophyta
Which one of the following is NOT a possible reason to explain why organisms would stop exponential growth?
a) Accumulation of waste products b) Exhaustion of nutrients c) Lack of available space d) Bacteria becoming dormant