What is a negative outcome of extinction? What is a positive outcome of extinction?

Three common characteristics of adult vertebrates are? A) skull, notochord, and complex organ system. B) backbone, segmentation, and open circulatory system. C) two pairs of jointed appendages, cephalization, and internal skeleton.

What is the process of changes that takes place during the life of an organism

Mitosis and meiosis are methods of cell division. Which of the following is true of these two methods? A. Meiosis involves only one division, while mitosis involves two divisions. B.

How do mutations allow for viruses to become more widespread?

You want to use a plasmid to transform an E. coli cell with a cry toxin gene from Bacillus thuringiensis in order to express the toxin in E. coli.

Which model of Golgi complex formation suggests that the cisternae of a Golgi stack remain in place as stable compartments held together by a protein scaffold, while the cargo is shuttled through the Golgi via vesicles that bud from one compartment

Diamond is The hardest mineral on the mohs scale A no nonmetallic element The only mineral with luster An isotope of silicon

How do muscles assist with movement of the body and of substances around the body?

Which tree does the unknown leaf come from

Chemicals that send instructions to cells are