The spaces that separate adjacent Schwann cells are called
a. neuroglia.
b. myelin sheaths.
c. nodes.
d. dendrites.
e. synapses.
C
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According to our text, the greatest single obstacle to sustainable development is
A) the lack of adequate, integrated political economic structures and systems. B) population growth. C) absurd reliance on fossil fuels. D) disruptive involvement of NGOs.
The length of monkey flower leaves is inherited as an incomplete dominant trait. When long leaves are crossed with short leaves a third phenotype, intermediate leaves, is produced. A plant breeder crosses two monkey flowers. The resultant offspring are 58 intermediate and 52 short-leafed plants. What are the phenotypes of the parent monkey flowers? Explain your answer
What will be an ideal response?
When comparing short-term and long-term memory processes, the most accurate description is that
A. short-term memory processes act through second messenger systems while long-term memory processes require protein synthesis. B. NEITHER short-term nor long-term memory processes require protein synthesis. C. BOTH short-term and long-term memory processes require protein synthesis. D. invertebrate animals like Aplysia and Drosophila do not show long-term memory processes. E. long-term memory processes act through second messenger systems while short-term memory processes require protein synthesis.
Assume that you ate a salad that contained some compounds that upset your stomach but still managed to be absorbed and eventually moved into liver cells. The plant compounds are noxious and potentially toxic to the liver cells
Which organelle in the liver cells would be expected to target and detoxify the plant compounds? A) ribosome B) mitochondrion C) peroxisome D) centriole E) nucleolus