One difference between eukaryotic and prokaryotic cells is that eukaryotic cells ________ prokaryotic cells.
A) have DNA, which is lacking in
B) have membrane-enclosed structures called organelles, which are lacking in
C) have a plasma membrane, which is lacking in
B) have membrane-enclosed structures called organelles, which are lacking in
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What are the three major factors that impact the type of biome that will exist in a given area? What will be an ideal response?
The thick liquid food that enters the small intestine from the stomach is called _____.
Fill in the blank(s) with the appropriate word(s).
Viruses were first identified:a
because they caused an infection and formed colonies on nutrient agar plates. b. because they were seen in the light microscope. c. because they caused an infection and were small enough to pass through filters that trapped bacteria. d. because they were smaller than bacteria and had all the properties of living organisms. e. because they caused an infection and were seen in the electron microscope.
Specialized epidermal outgrowths that remove excess salt accumulated in seashore plants are an example of:
a. plasmodesmata. b. guard cells. c. stomata. d. sclereids. e. trichomes