Which pair of structures would provide a positive identification of an animal cell under a microscope? plasma membrane, A. endoplasmic reticulum B. Golgi apparatus, mitochondrion C. lysosome, flagellum D. cell wall, chromatin

c. lysosome, flagellum

Explanation:

k12 I took the test

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

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: