The oily substance that lowers the pH of the skin's surface to about pH 5 and is inhibitory to many bacteria is (sebum/sweat/serum).
Fill in the blank(s) with the appropriate word(s).
sebum
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Some species of Lycopodium produce gametophytes that grow beneath the surface of the soil, while others grow on the soil surface. Basing your answer on what you’ve learned from other plants in this exercise, predict how each respective type of Lycopodium gametophyte might obtain its nutritional needs.
What will be an ideal response?
On land, ____ , which are broad, ecologically uniform areas, are recognized by their characteristic vegetation, which reflects adaptation of form and physiology to climate
Fill in the blank with the appropriate word.
Consider that you have access to use fluorescent tagging of specific proteins and view cells in a confocal microscope. You isolate a cell with the fluorescent dyes, showing that a very tiny, single-celled organism has not only a cell membrane, but internally folded membranes. You determine also that the membranes do not completely surround internal specialized compartments of the cell. You identify this as
A. a prokaryote. B. a yeast. C. a eukaryote. D. a plant. E. an animal.
The three types of muscle tissue are cardiac, skeletal, and ___________
Fill in the blank(s) with the appropriate word(s)