The first animals to show cephalization have several characteristics. Which of the following is NOT one of them?
a. These animals were triploblastic.
b. These animals had a proboscis.
c. These animals were in phylum Platyhelminthes.
d. These animals are placed in the group Lophotrochozoa.
e. These animals followed the protostome pattern of embryonic development
b
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A vaccine that protects against infection of some strains of genital HPV also protects against:
a. cervical cancer b. AIDS c. autoimmune diseases d. breast cancer e. genital bacterial infection
Rapid turgor pressure changes in specialized multicellular swellings called ________ are associated with leaves that move in response to touch or light.
A. pudicas B. pulvini C. petioles D. stipules E. coleoptiles
On a branching diagram, where should existing species be placed?
a. On twigs b. On larger branches c. At the base of the tree d. At the nodes
The bases in DNA are complementary. A always binds with
A. G. B. T. C. C. D. A. E. U.