What kind of cells make up the basement membrane?
A) cuboidal epithelial cells
B) squamous epithelial cells
C) columnar epithelial cells
D) connective tissue cells
E) no cells, the basement membrane is an acellular structure, composed of protein
E
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The landing platform for pollen in flowering plants is the ____
a. filament b. stigma c. anther d. style e. ovary
You are a botanist living in the desert. A friend
asks you which of the following plants would be most practical to plant in their yard. What is your answer?
a. all plants will do equally well b. any plant as long as it is a C3 plant c. any plant as long as it is a C4 plant d. any plant as long as it is a CAM plant e. either a C3 or C4 plant
Matching II. Choose the most appropriate answer
1. ___ autonomic nervous system 2. ___ frontal lobe 3. ___ cerebellum 4. ___ corpus callosum 5. ___ ganglion 6. ___ hypothalamus 7. ___ limbic system 8. ___ medulla oblongata 9. ___ midbrain 10. ___ nerve net 11. ___ peripheral nervous system 12. ___ reticular formation 13. ___ meninges 14. ___ neurotransmitter molecule 15. ___ white matter A. integrates body position, motions, balance B. in cnidarians; based on reflex pathways devoted to swimming and feeding C. messages from here arouse the brain and maintain wakefulness D. the cortical region that coordinates muscles required for speech E. all parts of nerve cells outside the brain and spinal cord F. acetylcholine is an example G. reflex control center for breathing, heart rate, and blood pressure H. axons of the central nervous system that are sheathed with fatty myelin I. at top of the brainstem bordering the cerebral hemispheres; influences learning and emotional behavior J. motor neurons that are divided into sympathetic and parasympathetic divisions K. membrane coverings over brain spinal cord L. contains the tectum; receives and integrates sensory information that is largely sent on to the forebrain for further neural processing M. connects right and left cerebral hemispheres N. group of nerve cell bodies that form an integrative center O. contains centers concerned with body temperature regulation and with salt and water balance
According to the ________ principle, a muscle cell contracts completely when adequately stimulated by a motor neuron
Fill in the blank(s) with correct word