__________ is a field of study concerned with the origins, evolution, and persistence of life on Earth

as it relates to life in the universe. Fill in the blank(s) with the appropriate word(s).


Astrobiology

Biology & Microbiology

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Mycorrhizae enhance plant nutrition mainly by _____

A) absorbing water and minerals through the fungal hyphae B) providing sugar to root cells, which have no chloroplasts C) converting atmospheric nitrogen to ammonia D) enabling the roots to parasitize neighboring plants E) stimulating the development of root hairs

Biology & Microbiology

Which one of the following biological polymers is mismatched with its monomer?

A) DNA - nucleotide B) enzyme - amino acid C) chitin - monosaccharide D) protein - amino acid E) cellulose - amino acid

Biology & Microbiology

Which of the following is the least effective method of contraception?

a. progestin b. tubal ligation c. IUDs d. rhythm method e. spermicidal foam

Biology & Microbiology

Which of the following is found within the cochlea?

A. stapes B. semicircular canals C. incus D. tympanic membrane E. spiral organ

Biology & Microbiology