According to the fossil record, tetrapods arose from ____

a. acanthodians
b. conodonts
c. osteolepiforms
d. placoderms
e. ostracoderms


ANSWER: c

Biology & Microbiology

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________ transmission occurs when a parasite is transferred from one host to another without the involvement of an intermediate organism

Fill in the blank(s) with correct word

Biology & Microbiology

An elongate uniramid with many legs as well as poison claws is called:A

a mite. B. a tick. C. an insect. D. a centipede. E. a millipede.

Biology & Microbiology

Regarding the efficient initiation of transcription by RNA polymerase II, which specific "upstream" signals appear to be involved?

What will be an ideal response?

Biology & Microbiology

The genetic codes for STOP codons are

A) AUG, UGA and CAC B) UAU, AAU and GAU C) UAA, UAG and UGA D) CAA, AGA and AAU

Biology & Microbiology