Question

1. If an organism exhibits radial determinate cleavage early in it's embryonic development, what else can you say with confidence about this organism?

Group of answer choices

this organism belongs to the clade "Lophotrochozoa"

this organism belongs to the clade "Bilateria"

this organism has a gastrovascular cavity

this organism is a protostome

2. You find an invertebrate deuterostome with secondary radial symmetry on the beach. Which of the following classes might it belong to?

Group of answer choices

scyphozoa

mammalia

ophioroidea

amphibia

Answer 1

And)this organism belongs to the clade "Bilateria"

Explanation:radial determinate cleavage is characteristics of deuterostomes which belong to class bilateral

Lophotrochozoa have protostome animals

Gastrovascular cavity is present in coelenterates which belong to class radiata.

Ans2 )ophiuroidea

Explanation: ophiuroidea is class of invertebrate phylum Echinoderms which involve deuterostomous animals with secondary radial symmetry.

Scyphozoa is class of coelentrata which have primary radial symmetry and they are not deuterostomous.

Mammalia class belong to Vertebrata and have bilateral symmetry organisms.

Amphibia class belong to Vertebrata and have bilateral symmetry.