What is the name of the stiff nonconducting rod that develops down the back of the embryo of all chordates?

A. dorsal

B. nerve net

C. ganglia

D. notochord

What percentage of the energy needed to make aluminum cans from ore is needed to make recycled aluminum cans from used aluminum cans?

How is an allele described?

Which endorcine glad realeses a hormone to regulate calcuim levels in the bloodstream?

How does sleeping pills react or are bad to the body

How does dna work reinforcement activity answer key?

Cells in multi-cellular organisms A) All look the same B) All have the same function C) Are often quite different from each other D) Are the same size in every part of the organism

Why is it necessary to cool a hot supersaturated solution slowly during a recrystallization?

Name the two energy-equivalent molecules that contain three phosphates as part of their structure. what makes these two molecules different? how many high energy phosphate bonds do they contain? nutrition

During what period of time has the sunbelt region of the u. s. grown most quickly?

The axial skeleton includes the A) vertebra, skull, and ribs B) hip bones, knees, and feet C) shoulder bones, elbows, and hands D) bones of the fingers and toes