The vertebral column develops from

a. the notochord.
b. the hollow, dorsal nerve cord.
c. the gill slits.
d. the tail.
e. more than one of these


A

Biology & Microbiology

You might also like to view...

Is photosynthetic O2 production light-dependent?

a. Yes b. No

Biology & Microbiology

Force

What will be an ideal response?

Biology & Microbiology

A population of grasshoppers in the Kansas prairie has two color types: green and brown. Typically, the prairie receives enough rainfall to maintain healthy, green grass. Assume a bird species that eats grasshoppers moves into the prairie

How will this affect the natural selection of the grasshoppers? How might this change in a drought year, when the grass turns brown?

Biology & Microbiology

Which best describes the protective action of blinking?

A) An interneuron detects motion and sends this message to the peripheral nervous system (PNS), and the PNS sends a message back to blink. B) A sensory receptor detects motion, a sensory neuron sends this information to the spinal cord, and the information in the central nervous system (CNS) sends a message back to blink. C) A cell body detects motion, a sensory neuron sends this message to the peripheral nervous system (PNS), and the PNS sends a message back to blink. D) A cell body detects motion, a sensory neuron sends this message to the spinal cord, and the information in the central nervous system (CNS) sends a message back to blink.

Biology & Microbiology