Which two structures would provide a positive identification of an animal cell under a microscope?

a, nucleus, vesicle
b, flagellum, lysosome
c, chromatin, chloroplast
d, ribosome, lysosome

The images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that . the archaeopteryx and bird have wings, while dinosaurs have limbs. so, it can be concluded that .

When organisms are classified ,they are given a two part name

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele