Which phylum of organisms are most closely related to chordates

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

Look at the photo of the leaf. which term best describes this leaf?