#Question id: 7223
#Unit 5. Developmental Biology
In drosophila, the dorso-ventral axis of the embryo becomes divided into four regions early in embryogenesis.
A. The ventral mesoderm, which will form muscles and other internal connective tissues
B. The amnioserosa, which gives rise to an extra-embryonic membrane on the dorsal side of the embryo
C. The dorsal ectoderm, which gives rise to larval epidermis
D. The ventral ectoderm or neuroectoderm, which gives rise to the larval nervous system and epidermis
What is the correct sequence of these regions from ventral to dorsal?
#Question id: 26869
#Unit 10. Ecological Principles
#Question id: 26398
#Unit 3. Fundamental Processes
#Question id: 7306
#Unit 5. Developmental Biology
A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter. Iris normally blooms as a long-day (short-night) plant. Which of the following has the best chance of creating iris blooms in winter?
#Question id: 10982
#Unit 7. System Physiology – Animal
If the S-A node discharges at 0.00 seconds, when will the action potential normally arrive at the epicardial surface at the base of the left ventricle?