The ________ are the macrophages of the central nervous system.
Fill in the blank(s) with the appropriate word(s).
Answer: microglia
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The above figure represents a plant structural
feature with which of the following functions? a. reproduction b. gas exchange c. water conservation d. water transport e. both gas exchange and water conservation
Briefly explain how Ti plasmids induce crown gall (tumor) growth in plants parasitized by Agrobacterium tumefaciens, highlighting the specific properties that make this plasmid so useful in biotechnology
What will be an ideal response?
Human embryos have a developmental stage during which they have a tail and pharyngeal pouches (those pouches develop into gills in fish). How can we explain these characteristics of human embryos?
A) Human embryos need a tail and gills to breathe during development in the placenta. B) Human embryos spend time in the water where tails and gills are useful. C) Human embryos share a common ancestor who had gills. D) Both A and B are correct.
Which part of a fungus penetrates inside of a plant?
A. hyphae B. fruiting bodies C. spores D. pili E. flagella