DNA sequencing data suggest that evolutionary changes are related to an accumulation of:

a. index fossils.
b. vestigial organs.
c. convergent structures.
d. homologous structures.
e. changes in DNA nucleotide sequences.


e

Biology & Microbiology

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The process often referred to as "cellular eating" is  

A.  osmosis. B.  pinocytosis. C.  phagocytosis. D.  diffusion. E.  active transport.

Biology & Microbiology

Which four features do humans share with tunicates?

a. notochord; dorsal hollow nerve cord; pharyngeal slits in the embryonic stage; jaws b. vertebrae; lungs; amniotic egg; four-chambered heart c. notochord; dorsal hollow nerve cord; pharyngeal slits in the embryonic stage; a postanal tail in the embryonic stage d. notochord; vertebrae; lungs; amniotic egg e. vertebrae; bony skeleton; lungs; amniotic egg

Biology & Microbiology

A cross involving one gene between two heterozygous parents is called a(n) ________

Fill in the blank(s) with correct word

Biology & Microbiology

Recent analysis indicates that the chytrids are the most primitive division of fungi and that a single event resulted in the loss of flagella in the more advanced fungi.

Answer the following statement true (T) or false (F)

Biology & Microbiology