Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d. pentaradial symmetry

1. Grylloblattodea     is Paleoptera   undergoes a pupal stage   lives in high altitude or ice caves   is the Canadian national insect   has wings that cover almost entire abdomen 2. Numbers of true wings on a dipteran metathorax are 2.  true/false 3. Numbers of antennae in spiders are 2.  true/false

Which statement is true of chordates? O members of chordata are all in the same genus O all chordates have amniotic eggs O members of chordata are all in the same phylum O all chordates are vertcbrates

Temnospondyl fossils show evidence of a lateral line system in the juveniles, but not in the adults. This suggests that ____. the juveniles relied on filter feeding while the adults did not the juveniles were aquatic whereas the adults were terrestrial the juveniles got most of their oxygen from cutaneous respiration whereas the adults did not the juveniles were terrestrial whereas the adults were aquatic

Peramorphosis can occur when a feature, such as horns, ______in a descendent than in its ancestor. grows faster grows more slowly stops growing earlier starts to grow later

What is the first feature we see with platyhelminthes