Coal was formed primarily as a result of the existence of non-vascular plants

Indicate whether the statement is true or false.


ANS: F, seedless vascular

Biology & Microbiology

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The ________ is comprised of the fluid portion of the cell and contains the organelles.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

How do lymphatic capillaries differ from blood capillaries?

A) They contain red blood cells. B) They have a wall only one cell layer thick. C) They are made by lymphocytes. D) They contain plasma. E) They have "dead ends."

Biology & Microbiology

Which of the following statements is TRUE for prokaryotes?

a) They generally lack organelles (such as nuclei). b) Their DNA is associated with histone proteins. c) Their cell walls are chemically simple. d) They are multicellular organisms.

Biology & Microbiology

At the end of the Gram stain, gram-positive bacteria will be seen as pink cells.

a. true b. false

Biology & Microbiology