ASAP please help me! What is a dorsal notochord? A. part of the nervous system in both vertebrates and invertebrates. B. part of most chordate embryos that develops into a spinal column (vertebrae). C. part of chordates that protects the circulatory system. D. part of mammals only that develops into the spinal column.

In general, how long does it take to accomplish a long-term goal? a.a few days to a weekb.a few weeks to a monthc.a few months to a yeard. more than a year

Building glycogen from glucose molecules is an example of what

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote