Which of the following are considered more

primitive based upon the structure of their
limbs?
a. bats
b. reptiles
c. porpoises
d. penguins
e. birds


B

Biology & Microbiology

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Continental crust is older than oceanic crust

Indicate whether the statement is true or false

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Specialized islet cells that secrete hormones

are found scattered throughout the

a. adrenal cortex. b. liver. c. thymus. d. adrenal medulla. e. pancreas.

Biology & Microbiology

Resident biota of the gastrointestinal tract include ________.

A. Bacteroides B. Streptococcus C. Lactobacillus D. Haemophilus E. All of the choices are correct.

Biology & Microbiology

Which cluster of terms accurately reflects the nature of DNA replication in prokaryotes?

A) random point of initiation, unidirectional, semiconservative B) fixed point of initiation, bidirectional, conservative C) fixed point of initiation, bidirectional, semiconservative D) random point of initiation, bidirectional, semiconservative E) fixed point of initiation, unidirectional, conservative

Biology & Microbiology