What do chordates have that makes them different?

A. no body cavities

B. a notochord

C. under-developed organ systems

Number of chromosomes in chimpanzee

Compare the roles of water molecules and hydrogen ions in electron transport chains

Many farmers now grow insect-resistant varieties of cotton. The gene for the favorable trait, in this case, insect resistance, is transferred to the cotton's DNA using A: viral vectors. B: tissue culture. C: bacterial plasmids.

Will fluorite scratch penny why or why not

What is an example of stablizing selection

When evaluating your resources for authority, which of these question would you ask? A. Is the material too general, too technical, or just right for my needs? B. How recent is the information? C. Has this author been cited in other resources?

Which of these pairs is in Kingdom Fungi? A. mushrooms and bacteria B. diatoms and water molds C. mushrooms and yeast D. protist and virus

What is ne function of the smooth endoplasmic reticulum?

What are the distinguishing features of club mosses, whisk ferns, and horsetails? how are these plants different from ferns?

The nursing instructor is presenting a class on the various classifications of twins. The instructor determines the session is successful after the students correctly choose which classification that indicates twins have separate amniotic sacs and