Which of the following is a characteristic of all angiosperms? a. double internal fertilization
O b. free-living gametophytes
O c. carpels that contain microsporangia
O d. ovules that are not contained within ovaries

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

multiplying and dividing the two decimals and the eqations by the same number of the overalls

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

its temperature is increasing. this causes molecular vibrations to increase.