The closest algal relatives of land plants are _______.

A. charophyceans
B. red algae
C. brown algae
D. angiosperms


A. charophyceans

Biology & Microbiology

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A molecule or praticle recognized by the body

as nonself is a(an)

a. antibody. b. antigen. c. complement. d. macrophage. e. phagocyte

Biology & Microbiology

Settlers to the United States found between

__________ and __________ passenger pigeons. They are extinct today. a. 15,000-25,000 b. 3-5 billion c. 50-100 million d. none; they are native to Europe e. none of these

Biology & Microbiology

Which hypothesis states that the synthesis of DNA or RNA from the small molecules in the ocean would have come after the evolution of the plasma membrane and enzymes?

A. clay-catalyst hypothesis B. protein-first hypothesis C. chloroplast D. RNA-first hypothesis

Biology & Microbiology

A biologist has been studying a mollusk that does not have a shell. It lives in the marine environment. Of the examples given below, which one did the biologist study?

A. clam B. chiton C. octopus D. nautilus E. snail

Biology & Microbiology