The oldest fossils of eukaryotes have been estimated to be
A. 6000 years old.
B. 8 billion years old.
C. 4.5 billion years old.
D. 1.5 billion years old.
E. 1995 years old.
D. 1.5 billion years old.
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What is the probability of rolling a die twice and getting a 2 and a 6 in no particular order?
a. 1/3 b. 1/4 c. 1/8 d. 1/18 e. 1/36
Ultimately, into what molecule are the
electrons released from glucose in aerobic respiration incorporated?
a. carbon dioxide b. ATP c. oxygen gas d. water e. NADH
Glyphosate (a herbicide) inhibits EPSP, a chloroplast enzyme involved in the synthesis of several amino acids
Indicate whether the statement is true or false
Which list has structures that are involved only in the sense of hearing?
A) middle ear bones, semicircular canals, basilar membrane B) eardrum, utricle, organ of Corti C) oval window, cochlea, aqueous humor D) oval window, basilar membrane, organ of Corti