An avocado can be a simple model of the structure of a eukaryotic cell which cell structure is represented by the seed in the center of the avocado?

A. Cell membrane
B. Cytoplasm
C. cell wall
D. nucleus

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air