Select 2 that apply: who do scientists think that echinoderms are the invertebrates that are most closely related to the vertebrates

A. Because of echinoderms’ deuterosome mouth development

B. Because echinoderms have bilateral symmetry in the larval stage

C. Because echinoderms have a unique vascular system

D. Because echinoderms have tubular feet

E. Because echinoderms have a simple nervous system

Which test would show positive results for orange juice

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!